San Juan Islands, Washington, United States of America: What to pack, what to wear, and when to go [2023]

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Traveling to San Juan Islands, Washington, United States of America? If you're planning to go to San Juan Islands, we have some important information about when to go, what to wear, and what to pack.

Contents

When to go to San Juan Islands, Washington, United States of America

Based on the climate and weather in San Juan Islands, Washington, United States of America, the best time to go is August. See below for details.

What to wear/what to pack for San Juan Islands, Washington, United States of America

Already know when you're traveling?

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

What to wear/what to pack for San Juan Islands, Washington, United States of America by month

January

If you go to San Juan Islands in January, you will notice that it is pretty cool and very rainy. Expect it to rain about half of the time and snow sometimes. Daytime temperatures are in the 40s F (single digits C).

What to wear/what to pack:

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

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

  • Voice and data SIM card

    A SIM card that works in San Juan Islands. 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.

Comfort + Essentials
  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Super portable foldable travel stroller

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

  • Travel voltage adapter

    A plug adapter that supports outlet types A and B. Ensure that you find the necessary kind. Many adapters currently available are just plugs and expect your devices to adjust the voltage themselves. If yours can't do that they could get destroyed. This one works in most places.

  • Power bank for devices

    A portable power bank, like this one

  • Travel pillow

    A great choice is this one

February

In February, San Juan Islands is brisk and somewhat rainy. Temperatures routinely are in the high 40s F (single digits C) and about a third of the time jump into the low 50s F (single digits C) range. At night, lows are in the 30s F (single digits C). This is also a rainy time for San Juan Islands, with several of the days of the month having rain. In February, humidity reaches as high as 80%.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security
  • Voice and data SIM card

    A SIM card that works in San Juan Islands. 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 little protection, an anti-theft backpack protects your things.

Comfort + Essentials
  • Travel neck support pillow

    A versatile choice is this one

  • Voltage adapter

    A plug adapter that supports outlet types A and B. Check that you pick the necessary type. A lot of adapters for sale now are simply plugs and expect your electronics to change the voltage themselves. If your devices can't do that they could burn up. This one is sufficent for most locations.

  • 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

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

March

March in this region can be very chilly and somewhat rainy. Temperatures average in the low 50s F (low 10s C) during the day. It rains about half of the time.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security
  • Voice and data SIM card

    A SIM card that works in San Juan Islands. 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 little protection, an anti-theft backpack protects your belongings.

Comfort + Essentials
  • 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 pillow

    A versatile choice is this one

  • Travel adapter

    A plug adapter that supports outlet types A and B. Make sure to pick the necessary kind. A lot of adapters that you can buy are simply plugs and require your devices to change the voltage themselves. If your devices can't do that they could burn up. This one is sufficent for most areas.

  • Folding travel stroller

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

April

April in San Juan Islands is relatively cool and somewhat rainy. The rain can amount to several inches/centimeters. During this time, temperatures average in the 50s F (mid 10s C), although night temperatures can dip into the 30s F (single digits C).

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security
  • 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 San Juan Islands. 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 stuff.

Comfort + Essentials
  • Power bank for devices

    A portable power bank, like this one

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Super portable foldable travel stroller

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

  • Plug adapter

    A plug adapter that supports outlet types A and B. It's important that you find the necessary kind. The majority of adapters available online are just plugs and expect your devices to adjust the voltage themselves. If yours can't do that they could get destroyed. This one should be appropriate for most places.

  • Travel neck pillow

    Our fave is this one

May

If you go to San Juan Islands in May, you will notice that it can be chilly and somewhat rainy. Expect it to rain regularly. Daytime temperatures are in the low 60s F (high 10s C).

What to wear/what to pack:

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

    For a little 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 San Juan Islands. A good global SIM card works in most countries, but check the country list before buying.

Comfort + Essentials
  • Ultraportable travel stroller

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

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Travel pillow

    Our favorite is this one

  • Power bank for devices

    A portable power bank, like this one

  • Plug adapter

    A plug adapter that supports outlet types A and B. Be careful to get the right kind. Many adapters for sale now are just plug changers and expect your devices to adjust the voltage themselves. If yours can't do that they could burn up. This one should be appropriate for most countries.

June

June in San Juan Islands is balmy and somewhat rainy. The average overnight temperatures in the area are in the low 40s F (single digits C). It tends to rain a bit less than half of the time. But the colder weather doesn't bring low humidity, which is in the 50% to 60% range on average.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security
  • Voice and data SIM card

    A SIM card that works in San Juan Islands. 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 little peace of mind, an anti-theft backpack protects your stuff.

Comfort + Essentials
  • Travel voltage adapter

    A plug adapter that supports outlet types A and B. It's important that you pick the correct type. The vast majority of adapters that you can buy are just plug changers and require your devices to adjust the voltage themselves. If your electronics can't do that they could get destroyed. This one works in most locations.

  • Travel pillow

    What we like is this one

  • Power bank for devices

    A portable power bank, like this one

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Folding travel stroller

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

July

July here is mild. Temperatures average in the low 70s F (low 20s C) during the day. It rains sometimes.

What to wear/what to pack:

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

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

  • Voice and data SIM card

    A SIM card that works in San Juan Islands. 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.

Comfort + Essentials
  • Easy folding travel stroller

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

  • Travel neck support pillow

    A versatile choice is this one

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Voltage step down adapter

    A plug adapter that supports outlet types A and B. Make sure to choose the necessary type. A lot of adapters currently being sold are simply plug changers and require your devices to convert the voltage themselves. If yours can't do that they could get fried. This one works in most places.

  • Power bank for devices

    A portable power bank, like this one

August

August for San Juan Islands is mild. Temperatures average in the low 70s F (low 20s C) during the day. It rains occasionally.

What to wear/what to pack:

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

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

  • 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 San Juan Islands. A good global SIM card works in most countries, but check the country list before buying.

Comfort + Essentials
  • Voltage step down adapter

    A plug adapter that supports outlet types A and B. Check that you get the right kind. Most adapters available online are simply plug changers and require your devices to change the voltage themselves. If your electronics can't do that they could burn up. This one should be sufficient for most places.

  • Folding travel stroller

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

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Travel neck support pillow

    Our favorite is this one

  • Power bank for devices

    A portable power bank, like this one

September

If you go to San Juan Islands in September, you will notice that it is balmy. Expect it to rain regularly. Daytime temperatures are in the high 60s F (low 10s C).

What to wear/what to pack:

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

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

  • 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 San Juan Islands. A good global SIM card works in most countries, but check the country list before buying.

Comfort + Essentials
  • Folding travel stroller

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

  • Travel adapter

    A plug adapter that supports outlet types A and B. Check that you find the right kind. The vast majority of adapters currently being sold are simply plugs and require your devices to change the voltage themselves. If your electronics can't do that they could get fried. This one works in most places.

  • Travel pillow

    Our favorite is this one

  • Power bank for devices

    A portable power bank, like this one

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

October

October in San Juan Islands is relatively cool and somewhat rainy. The average overnight temperatures in the area are in the low 40s F (single digits C). It tends to rain about half of the time. But the colder weather doesn't bring low humidity, which is in the 60% to 70% range on average.

What to wear/what to pack:

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

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

  • 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 San Juan Islands. A good global SIM card works in most countries, but check the country list before buying.

Comfort + Essentials
  • Travel neck pillow

    A versatile choice is this one

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • 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. Check that you find the right kind. Many adapters available are simply plugs and expect your electronics to change the voltage themselves. If yours can't do that they could get destroyed. This one works in most locations.

  • Ultralightweight travel stroller

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

November

Traveling to San Juan Islands in November, you will notice that it can be very chilly and very rainy. Expect it to rain about two thirds of the time. Daytime temperatures are in the high 40s F (single digits C).

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security
  • Voice and data SIM card

    A SIM card that works in San Juan Islands. 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 things.

Comfort + Essentials
  • Power bank for devices

    A portable power bank, like this one

  • Ultralightweight travel stroller

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

  • Travel pillow

    A versatile choice is this one

  • Voltage adapter

    A plug adapter that supports outlet types A and B. Be careful to get the necessary kind. The vast majority of adapters for sale now are simply plugs and require your devices to change the voltage themselves. If your electronics can't do that they could burn up. This one should work in most locations.

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

December

In December, San Juan Islands can be very chilly and very rainy. Temperatures routinely are in the 40s F (single digits C) and occasionally jump into the low 50s F (single digits C) range. At night, lows are in the 30s F (single digits C). This is also a rainy time for San Juan Islands, with more than half of the days of the month having rain. In December, humidity reaches as high as 80%.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security
  • 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 San Juan Islands. 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 stuff.

Comfort + Essentials
  • Power bank for devices

    A portable power bank, like this one

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Super portable foldable travel stroller

    This stroller weighs just 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. Be careful to get the correct kind. The majority of adapters on sale are just plugs and require your devices to change the voltage themselves. If your devices can't do that they could burn up. This one is sufficent for most locations.

  • Travel neck pillow

    An excellent option is this one

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.

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