Islip, New York, United States of America: What to pack, what to wear, and when to go [2021]

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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.

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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.

Important esssentials 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.

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

January

Traveling to Islip in January, you will notice that it is freezing and somewhat rainy. Expect it to rain a bit less than half of the time and snow sometimes.

Daytime temperatures are in the high 30s F (single digits C).

What to wear/what to pack:

February

February in Islip is frigid and somewhat rainy. The average overnight temperatures in the area are in the 20s F (single digits below 0 C). It tends to rain a bit less than half of the time.

It also snows once in a while. 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:

March

March in Islip is cold and somewhat rainy. The rain/snow can amount to several inches/centimeters.

During this time, temperatures average in the 40s F (single digits C), although night temperatures can dip into the low 20s F (single digits below 0 C).

What to wear/what to pack:

April

April in Islip is crisp and somewhat rainy. The average overnight temperatures in the area are in the high 30s F (single digits C).

It tends to rain about a third 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:

May

In May, Islip is balmy 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:

June

June in Islip is a perfect temperature and somewhat rainy. The rain can amount to several inches/centimeters.

During this time, temperatures average in the 60s F (high 10s C) to 70s F (mid 20s C), although night temperatures can dip into the low 50s F (single digits C).

What to wear/what to pack:

July

Traveling to Islip in July, you will notice that it is warm. Expect it to rain about a third of the time. Daytime temperatures are in the low 80s F (high 20s C).

What to wear/what to pack:

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:

September

If you go to Islip in September, you will notice that it is balmy. Expect it to rain 5-10 days this month. Daytime temperatures are in the low 70s F (low 20s C).

What to wear/what to pack:

October

October in Islip is 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:

November

If you are traveling to Islip in November, you will notice that it can be very chilly and somewhat rainy. Expect it to rain about a third of the time.

Daytime temperatures are in the low 50s F (low 10s C).

What to wear/what to pack:

December

December in Islip is cold and somewhat rainy. The average overnight temperatures in the area are in the low 30s F (single digits below 0 C).

It tends to rain about a third 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:

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