Port Jefferson, New York, United States of America: What to pack, what to wear, and when to go [2022]

Empty Lighthouse is a reader-supported site. This article may contain affiliate links to Amazon and other sites. We earn a commission on purchases made through these links.

Traveling to Port Jefferson, New York, United States of America? If you're planning to go to Port Jefferson, below is some important information about when to go, what to wear, and what to pack.

Contents

About your travel guide

Hi! I'm Dev. I've traveled all over the world and in my travels, I have made many packing lists. In this series, my team and I have compiled the most useful information, as well as things we couldn't live without, to help you plan your trip.

When to go to Port Jefferson, New York, United States of America

Based on the climate and weather in Port Jefferson, the best time to go is June. See below for details.

Important essentials for Port Jefferson, New York, United States of America

Here are some general tips on what to wear in Port Jefferson, as well as several items to remember to pack when traveling there.

What to wear/what to pack for Port Jefferson, New York, United States of America by month

Already know when you're traveling?

January

January in Port Jefferson is cold and snowy. The snow can amount to several inches/centimeters. During this time, temperatures average in the low 20s F (single digits below 0 C) to high 30s F (single digits C), although night temperatures can dip into the single digits F (10+ below zero C).

What to wear/what to pack:

Clothes + Footwear
Health Essentials
  • A vaccine card protector

    Vaccine cards may wear out. An unreadable vaccine card may result in severe consequences. This vaccine card protector helps avoid that.

  • Travel first aid kit

    This one is a superb one.

  • Travel disinfecting wipes

    Use these to sanitize plane and hotel surfaces.

  • Emergency motion sickness relief

  • Hand sanitizer

    This hand sanitizer is an easy-to-carry TSA-friendly choice.

Safety + Security
  • Anti-theft backpack

    For a little peace of mind, an anti-theft backpack protects your things.

  • Travel insurance

    With countries and airlines constantly changing policies, your amazing trip can be ruined if you get sick. Good travel insurance can help. See plans

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

  • Voice and data SIM card

    A SIM card that works in Port Jefferson. A good global SIM card works in most countries, but check the country list before buying.

Comfort
  • Travel neck pillow

    An excellent option is this one

  • Travel adapter

    A plug adapter that supports outlet types A and B. Be sure to choose the correct type. Most adapters currently available are just plug changers and require your electronics to convert the voltage themselves. If your devices can't do that they could get destroyed. This one should be appropriate for most areas.

  • Ultraportable travel stroller

    This stroller weighs almost 10 lbs and folds to the size of a big book.

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Power bank for devices

    A portable power bank, like this one

February

February in Port Jefferson is pretty cool and snowy. Temperatures average in the low 40s F (single digits C) during the day. It rains a bit less than half of the time and snows (heavy snowfall).

What to wear/what to pack:

Clothes + Footwear
Health Essentials
  • Travel disinfecting wipes

    Use these to sanitize plane and hotel surfaces.

  • Emergency motion sickness relief

  • Travel first aid kit

    This one is a good one.

  • A vaccine card protector

    Vaccine cards frequently wear away. An unreadable vaccine card can have severe consequences. This vaccine card protector helps stop that.

  • Hand sanitizer

    This hand sanitizer is an easy-to-carry plane-friendly option.

Safety + Security
  • Voice and data SIM card

    A SIM card that works in Port Jefferson. A good global SIM card works in most countries, but check the country list before buying.

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

  • Anti-theft backpack

    For a bit of protection, an anti-theft backpack protects your stuff.

  • Travel insurance

    With countries and airlines constantly changing policies, your amazing trip can be ruined if you get sick. Good travel insurance can help. See plans

Comfort
  • Travel voltage adapter

    A plug adapter that supports outlet types A and B. Be careful to get the correct type. Many adapters for sale now are just plug changers and expect your devices to change the voltage themselves. If your devices can't do that they could get fried. This one should work in most areas.

  • Travel pillow

    A versatile choice is this one

  • Ultralightweight travel stroller

    This stroller is only 10 pounds and folds to the size of a big book.

  • Power bank for devices

    A portable power bank, like this one

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

March

If you are traveling to Port Jefferson in March, you will notice that it is brisk, snowy and somewhat rainy. Expect it to rain 5-10 days this month and snow (several inches of snow). Daytime temperatures are in the low 50s F (low 10s C).

What to wear/what to pack:

Clothes + Footwear
Health Essentials
  • Hand sanitizer

    This hand sanitizer is an excellent plane-friendly option.

  • Travel first aid kit

    This one is a excellent one.

  • Emergency motion sickness relief

  • Travel disinfecting wipes

    Use these to sanitize plane and hotel surfaces.

  • A vaccine card protector

    Vaccine cards often get worn. An unreadable vaccine card may result in severe consequences. This vaccine card protector helps avoid that.

Safety + Security
  • Voice and data SIM card

    A SIM card that works in Port Jefferson. A good global SIM card works in most countries, but check the country list before buying.

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

  • Travel insurance

    With countries and airlines constantly changing policies, your amazing trip can be ruined if you get sick. Good travel insurance can help. See plans

  • Anti-theft backpack

    For a little protection, an anti-theft backpack protects your belongings.

Comfort
  • Plug adapter

    A plug adapter that supports outlet types A and B. It's important that you pick the correct type. The majority of adapters currently sold are simply plugs and expect your devices to convert the voltage themselves. If yours can't do that they could burn up. This one should be appropriate for most places.

  • Travel pillow

    Our favorite is this one

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Folding travel stroller

    This stroller weighs just 10 pounds and folds to the size of a big book.

  • Power bank for devices

    A portable power bank, like this one

April

If you vacation in Port Jefferson during April, you will probably see that it is relatively cool and somewhat rainy. Temperatures tend to hover around the low 60s F (high 10s C) during the day, while at night they can dip into the high 30s F (single digits C). In terms of precipitation, you can expect it to rain regularly and snow ().

What to wear/what to pack:

Clothes + Footwear
Health Essentials
  • Travel first aid kit

    This one is a great choice.

  • Travel disinfecting wipes

    Use these to sanitize plane and hotel surfaces.

  • Emergency motion sickness relief

  • Hand sanitizer

    This hand sanitizer is a good plane-friendly choice.

  • A vaccine card protector

    Vaccine cards may wear away. An unreadable card may result in severe consequences. This vaccine card protector helps avoid that.

Safety + Security
  • Voice and data SIM card

    A SIM card that works in Port Jefferson. A good global SIM card works in most countries, but check the country list before buying.

  • Anti-theft backpack

    For a little peace of mind, an anti-theft backpack protects your stuff.

  • Travel insurance

    With countries and airlines constantly changing policies, your amazing trip can be ruined if you get sick. Good travel insurance can help. See plans

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

Comfort
  • Travel neck pillow

    Our favorite is this one

  • Folding travel stroller

    This stroller weighs almost 10 pounds and folds to the size of a big book.

  • Voltage step down adapter

    A plug adapter that supports outlet types A and B. Take care to choose the necessary kind. Most adapters available online are simply plug changers and require your electronics to convert the voltage themselves. If yours can't do that they could get destroyed. This one should be sufficient for most areas.

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Power bank for devices

    A portable power bank, like this one

May

If you go to Port Jefferson in May, you will notice that it is warm and somewhat rainy. Expect it to rain a bit less than half of the time and snow (). Daytime temperatures are in the 70s F (low 20s C).

What to wear/what to pack:

Clothes + Footwear
Health Essentials
  • Travel first aid kit

    This one is a superb value.

  • Travel disinfecting wipes

    Use these to sanitize plane and hotel surfaces.

  • Hand sanitizer

    This hand sanitizer is an easy-to-carry plane-friendly option.

  • A vaccine card protector

    Vaccine cards may get worn. An unreadable vaccination card may result in severe consequences. This vaccine card protector helps stop that.

  • Emergency motion sickness relief

Safety + Security
  • Voice and data SIM card

    A SIM card that works in Port Jefferson. A good global SIM card works in most countries, but check the country list before buying.

  • Travel insurance

    With countries and airlines constantly changing policies, your amazing trip can be ruined if you get sick. Good travel insurance can help. See plans

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

  • Anti-theft backpack

    For a bit of protection, an anti-theft backpack protects your belongings.

Comfort
  • Travel pillow

    An excellent option is this one

  • Voltage adapter

    A plug adapter that supports outlet types A and B. Make sure to choose the correct kind. The majority of adapters for sale now are simply plug changers and expect your electronics to adjust the voltage themselves. If yours can't do that they could get fried. This one works in most locations.

  • Super portable foldable travel stroller

    This stroller weighs just 10 pounds and folds to the size of a big book.

  • Power bank for devices

    A portable power bank, like this one

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

June

If you visit Port Jefferson during June, you might see that it is pretty consistently hot and somewhat rainy. Temperatures tend to hover around the low 80s F (high 20s C) during the day, while at night they can dip into the high 50s F (mid 10s C). In terms of precipitation, you can expect it to rain a bit less than half of the time.

What to wear/what to pack:

Clothes + Footwear
Health Essentials
  • Emergency motion sickness relief

  • A vaccine card protector

    Vaccine cards may become worn. An unreadable card can cause severe consequences. This vaccine card protector helps stop that.

  • Hand sanitizer

    This hand sanitizer is an easy-to-carry TSA-friendly choice.

  • Travel disinfecting wipes

    Use these to sanitize plane and hotel surfaces.

  • Travel first aid kit

    This one is a superb kit.

Safety + Security
  • Travel insurance

    With countries and airlines constantly changing policies, your amazing trip can be ruined if you get sick. Good travel insurance can help. See plans

  • Anti-theft backpack

    For a bit of protection, an anti-theft backpack protects your stuff.

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

  • Voice and data SIM card

    A SIM card that works in Port Jefferson. A good global SIM card works in most countries, but check the country list before buying.

Comfort
  • Power bank for devices

    A portable power bank, like this one

  • Travel pillow

    A top rated pillow is this one

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Folding travel stroller

    This stroller is only 10 lbs and folds to the size of a big book.

  • Plug adapter

    A plug adapter that supports outlet types A and B. Be sure to pick the right kind. Most adapters available online are just plug changers and require your electronics to change the voltage themselves. If your devices can't do that they could get destroyed. This one should work in most areas.

July

Traveling to Port Jefferson in July, you will notice that it is constantly hot. Expect it to rain regularly. Daytime temperatures are in the 80s F (low 30s C).

What to wear/what to pack:

Clothes + Footwear
Health Essentials
Safety + Security
  • Anti-theft backpack

    For a bit of peace of mind, an anti-theft backpack protects your belongings.

  • Voice and data SIM card

    A SIM card that works in Port Jefferson. A good global SIM card works in most countries, but check the country list before buying.

  • Travel insurance

    With countries and airlines constantly changing policies, your amazing trip can be ruined if you get sick. Good travel insurance can help. See plans

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

Comfort
  • Power bank for devices

    A portable power bank, like this one

  • Voltage step down adapter

    A plug adapter that supports outlet types A and B. Make sure to choose the right type. Many adapters available online are simply plugs and expect your electronics to convert the voltage themselves. If your electronics can't do that they could burn up. This one should be sufficient for most areas.

  • Travel neck pillow

    A versatile choice is this one

  • Easy folding travel stroller

    This stroller weighs just 10 pounds and folds to the size of a big book.

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

August

Traveling to Port Jefferson in August, you will notice that it is extremely warm. Expect it to rain a bit less than half of the time. Daytime temperatures are in the 80s F (high 20s C).

What to wear/what to pack:

Clothes + Footwear
Health Essentials
Safety + Security
  • Anti-theft backpack

    For a little protection, an anti-theft backpack protects your stuff.

  • Voice and data SIM card

    A SIM card that works in Port Jefferson. A good global SIM card works in most countries, but check the country list before buying.

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

  • Travel insurance

    With countries and airlines constantly changing policies, your amazing trip can be ruined if you get sick. Good travel insurance can help. See plans

Comfort
  • Travel voltage adapter

    A plug adapter that supports outlet types A and B. Be careful to pick the correct kind. The majority of adapters available are simply plug changers and require your electronics to convert the voltage themselves. If your devices can't do that they could get fried. This one should be sufficient for most countries.

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Ultralightweight travel stroller

    This stroller weighs only 10 lbs and folds to the size of a big book.

  • Power bank for devices

    A portable power bank, like this one

  • Travel pillow

    What we like is this one

September

Traveling to Port Jefferson in September, you will notice that it is a perfect temperature. Expect it to rain 5-10 days this month. Daytime temperatures are in the 70s F (mid 20s C).

What to wear/what to pack:

Clothes + Footwear
Health Essentials
  • A vaccine card protector

    Vaccine cards often wear out. An unreadable vaccine card can have severe consequences. This vaccine card protector helps stop that.

  • Travel disinfecting wipes

    Use these to sanitize plane and hotel surfaces.

  • Hand sanitizer

    This hand sanitizer is an excellent plane-friendly choice.

  • Emergency motion sickness relief

  • Travel first aid kit

    This one is a great option.

Safety + Security
  • Travel insurance

    With countries and airlines constantly changing policies, your amazing trip can be ruined if you get sick. Good travel insurance can help. See plans

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

  • Voice and data SIM card

    A SIM card that works in Port Jefferson. A good global SIM card works in most countries, but check the country list before buying.

  • Anti-theft backpack

    For a little peace of mind, an anti-theft backpack protects your stuff.

Comfort
  • Power bank for devices

    A portable power bank, like this one

  • Travel neck support pillow

    Our favorite is this one

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Plug adapter

    A plug adapter that supports outlet types A and B. Ensure that you get the correct kind. Many adapters currently sold are simply plug changers and require your electronics to convert the voltage themselves. If your electronics can't do that they could burn up. This one should work in most places.

  • Folding travel stroller

    This stroller is only 10 lbs and folds to the size of a big book.

October

October in Port Jefferson is balmy. The rain can amount to several inches/centimeters. During this time, temperatures average in the 60s F (high 10s C), although night temperatures can dip into the low 30s F (single digits C).

What to wear/what to pack:

Clothes + Footwear
Health Essentials
  • A vaccine card protector

    Vaccine cards frequently wear away. An unreadable vaccination card can cause severe consequences. This vaccine card protector helps stop that.

  • Travel disinfecting wipes

    Use these to sanitize plane and hotel surfaces.

  • Travel first aid kit

    This one is a great value.

  • Emergency motion sickness relief

  • Hand sanitizer

    This hand sanitizer is a good TSA-friendly option.

Safety + Security
  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

  • Travel insurance

    With countries and airlines constantly changing policies, your amazing trip can be ruined if you get sick. Good travel insurance can help. See plans

  • Voice and data SIM card

    A SIM card that works in Port Jefferson. A good global SIM card works in most countries, but check the country list before buying.

  • Anti-theft backpack

    For a little protection, an anti-theft backpack protects your belongings.

Comfort
  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Power bank for devices

    A portable power bank, like this one

  • Travel neck support pillow

    Our favorite is this one

  • Folding travel stroller

    This stroller is only 10 lbs and folds to the size of a big book.

  • Voltage adapter

    A plug adapter that supports outlet types A and B. It's important that you pick the correct kind. The majority of adapters on sale are just plugs and expect your electronics to adjust the voltage themselves. If your devices can't do that they could get fried. This one should work in most countries.

November

November in Port Jefferson is crisp and somewhat rainy. The average overnight temperatures in the area are in the 30s F (single digits C). It tends to rain a bit less than half of the time.

What to wear/what to pack:

Clothes + Footwear
Health Essentials
  • A vaccine card protector

    Vaccine cards may get worn. An unreadable vaccine card can have severe consequences. This vaccine card protector helps stop that.

  • Travel first aid kit

    This one is a excellent option.

  • Emergency motion sickness relief

  • Hand sanitizer

    This hand sanitizer is an easy-to-carry plane-friendly choice.

  • Travel disinfecting wipes

    Use these to sanitize plane and hotel surfaces.

Safety + Security
  • Anti-theft backpack

    For a bit of peace of mind, an anti-theft backpack protects your belongings.

  • Voice and data SIM card

    A SIM card that works in Port Jefferson. A good global SIM card works in most countries, but check the country list before buying.

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

  • Travel insurance

    With countries and airlines constantly changing policies, your amazing trip can be ruined if you get sick. Good travel insurance can help. See plans

Comfort
  • Power bank for devices

    A portable power bank, like this one

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Travel neck pillow

    An excellent option is this one

  • Travel voltage adapter

    A plug adapter that supports outlet types A and B. Take care to get the necessary kind. The majority of adapters available are simply plugs and expect your devices to convert the voltage themselves. If yours can't do that they could get fried. This one should be appropriate for most areas.

  • Ultralightweight travel stroller

    This stroller is only 10 pounds and folds to the size of a big book.

December

If you go to Port Jefferson in December, you will notice that it is pretty cool, snowy and somewhat rainy. Expect it to rain 5-10 days this month and snow (extremely heavy snowfall). Daytime temperatures are in the 40s F (single digits C).

What to wear/what to pack:

Clothes + Footwear
Health Essentials
  • Travel first aid kit

    This one is a good option.

  • Hand sanitizer

    This hand sanitizer is an easy-to-carry TSA-friendly option.

  • Emergency motion sickness relief

  • Travel disinfecting wipes

    Use these to sanitize plane and hotel surfaces.

  • A vaccine card protector

    Vaccine cards often get worn. An unreadable vaccination card can cause severe consequences. This vaccine card protector helps stop that.

Safety + Security
  • Anti-theft backpack

    For a bit of peace of mind, an anti-theft backpack protects your things.

  • Travel insurance

    With countries and airlines constantly changing policies, your amazing trip can be ruined if you get sick. Good travel insurance can help. See plans

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

  • Voice and data SIM card

    A SIM card that works in Port Jefferson. A good global SIM card works in most countries, but check the country list before buying.

Comfort
  • Power bank for devices

    A portable power bank, like this one

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Travel pillow

    Our fave is this one

  • Plug adapter

    A plug adapter that supports outlet types A and B. Make sure to find the necessary kind. Many adapters available online are simply plug changers and require your devices to convert the voltage themselves. If yours can't do that they could get destroyed. This one should be sufficient for most locations.

  • Super portable foldable travel stroller

    This stroller weighs just 10 lbs and folds to the size of a big book.

Activities for Port Jefferson, New York, United States of America

Here are some activity recommendations and activity-specific packing tips for Port Jefferson.

Check out our guides for these other locations: Ngoc Hoi, Vietnam, White Post, Virginia, United States of America, Post Oak Savannah, Texas, United States of America, Newfoundland and Labrador, Newfoundland, Canada, Ramea, Newfoundland, Canada, Songpan, China, Clifden, Ireland, Kutztown, Pennsylvania, United States of America, Salisbury, England, United Kingdom, Golaghat, India, and Tetebatu, Indonesia.