Islip, New York, United States of America: What to pack, what to wear, and when to go [2018]

Traveling to Islip, New York, United States of America? If you're planning to go to Islip, here is some important information about when to go, what to wear, and what to pack:

When to go to Islip, New York, United States of America

Based on the climate and weather in Islip, the best time to go is August. See below for details.

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

January

If you go to Islip in January, you will notice that it is very cold and somewhat rainy. Expect it to rain regularly and snow sometimes. Daytime temperatures are in the high 30s F (single digits C).

What to wear/what to pack:

  • Waterproof coat
  • Umbrella
  • Warm pants or jeans
  • Gloves or mittens
  • Cold weather footwear
  • Waterproof boots
  • Heavy socks
  • Heavy jacket
  • Sweaters

February

February in Islip can be extremely cold and somewhat rainy. The average overnight temperatures in the area are in the 20s F (single digits below 0 C). It tends to rain regularly.

It also snows occasionally. 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:

  • Heavy jacket
  • Heavy socks
  • Gloves or mittens
  • Warm pants or jeans
  • Umbrella
  • Cold weather footwear
  • Waterproof coat
  • Sweaters
  • Waterproof boots

March

If you vacation in Islip during March, you are likely to find that it can be very chilly and somewhat rainy. Temperatures tend to hover around the 40s F (single digits C) during the day, while at night they can dip into the low 30s F (single digits C).

Humidity is generally between 50 and 60% during the day. In terms of precipitation, you can expect it to rain 5-10 days this month.

What to wear/what to pack:

  • Umbrella
  • Waterproof coat
  • Standard footwear
  • Light gloves or mittens
  • Fleeces
  • Jacket or coat
  • Waterproof boots
  • Warm pants or jeans
  • Socks

April

If you vacation in Islip during April, you are likely to find that it is crisp and somewhat rainy. Temperatures tend to hover around the high 50s F (mid 10s C) during the day, while at night they can dip into the high 30s F (single digits C).

Humidity is generally between 50 and 60% during the day. In terms of precipitation, you can expect it to rain regularly.

What to wear/what to pack:

  • Umbrella
  • Fleeces
  • Rain coat
  • Waterproof luggage
  • Jacket or coat
  • Light gloves or mittens
  • Waterproof footwear
  • Standard footwear
  • Warm pants or jeans
  • Socks

May

In May, Islip is mild and somewhat rainy. Temperatures routinely are in the high 60s F (low 20s C) and about half of the time jump into the low 70s F (low 20s C) range. At night, lows are in the high 40s F (single digits C).

This is also a rainy time for Islip, with several of the days of the month having rain. In May, humidity reaches as high as 70%.

What to wear/what to pack:

  • Waterproof footwear
  • Long sleeve shirts or blouses
  • Standard footwear
  • Socks
  • Waterproof luggage
  • Pants or jeans
  • Long skirts
  • Rain coat
  • Umbrella
  • Dresses
  • Light jacket or fleece

June

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

What to wear/what to pack:

  • Shorts or short pants
  • Waterproof footwear
  • Sunscreen lotion
  • Skirts
  • Sandals
  • Long and short sleeve shirts
  • Umbrella
  • Waterproof luggage
  • If you're going to the beach, bathing suits, swimwear
  • Rain coat
  • Dresses
  • Light footwear

July

July for Islip is a perfect temperature. Temperatures average in the low 80s F (high 20s C) during the day. It rains regularly.

What to wear/what to pack:

  • Sunscreen lotion
  • Umbrella
  • Waterproof footwear
  • Dresses
  • Light footwear
  • Skirts
  • Rain coat
  • Long and short sleeve shirts
  • Waterproof luggage
  • Sandals
  • If you're going to the beach, bathing suits, swimwear
  • Shorts or short pants

August

If you vacation in Islip during August, you are likely to find that it is a perfect temperature. Temperatures tend to hover around the high 70s F (mid 20s C) during the day, while at night they can dip into the low 60s F (high 10s C).

Humidity is generally between 60 and 70% during the day. In terms of precipitation, you can expect it to rain regularly.

What to wear/what to pack:

  • Shorts or short pants
  • Dresses
  • Skirts
  • Umbrella
  • Rain coat
  • Long and short sleeve shirts
  • Light footwear
  • Waterproof luggage
  • Waterproof footwear
  • Sunscreen lotion
  • Sandals
  • If you're going to the beach, bathing suits, swimwear

September

Traveling to Islip in September, you will notice that it is balmy. Expect it to rain about a third of the time. Daytime temperatures are in the low 70s F (low 20s C).

What to wear/what to pack:

  • Light footwear
  • Waterproof footwear
  • Long and short sleeve shirts
  • Waterproof luggage
  • Sandals
  • Umbrella
  • Sunscreen lotion
  • Shorts or short pants
  • If you're going to the beach, bathing suits, swimwear
  • Dresses
  • Rain coat
  • Skirts

October

October in Islip is relatively cool. The rain can amount to several inches/centimeters.

During this time, temperatures average in the 50s F (low 10s C) to low 60s F (high 10s C), although night temperatures can dip into the low 40s F (single digits C).

What to wear/what to pack:

  • Rain coat
  • Long skirts
  • Light jacket or fleece
  • Umbrella
  • Waterproof luggage
  • Dresses
  • Waterproof footwear
  • Pants or jeans
  • Socks
  • Standard footwear
  • Long sleeve shirts or blouses

November

If you vacation in Islip during November, you are likely to find that it is cold and somewhat rainy. Temperatures tend to hover around the low 50s F (low 10s C) during the day, while at night they can dip into the high 30s F (single digits C).

Humidity is generally between 60 and 70% during the day. In terms of precipitation, you can expect it to rain regularly.

What to wear/what to pack:

  • Waterproof luggage
  • Jacket or coat
  • Standard footwear
  • Light gloves or mittens
  • Fleeces
  • Rain coat
  • Warm pants or jeans
  • Socks
  • Waterproof footwear
  • Umbrella

December

If you vacation in Islip during December, you are likely to find that it is cold and somewhat rainy. Temperatures tend to hover around the low 40s F (single digits C) during the day, while at night they can dip into the low 30s F (single digits below 0 C).

Humidity is generally between 60 and 70% during the day. In terms of precipitation, you can expect it to rain 5-10 days this month.

What to wear/what to pack:

  • Warm pants or jeans
  • Light gloves or mittens
  • Standard footwear
  • Socks
  • Jacket or coat
  • Waterproof boots
  • Waterproof coat
  • Umbrella
  • Fleeces

Year-round what to wear/what to pack for Islip, New York, United States of America

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

  • A plug adadpter that supports outlet types A and B
  • A SIM card that works in Islip
  • Appropriate museum wear

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