The weather in April in Long Island

It's cool in April in Long Island with an average temperature of 12°C. Temperatures this month range from a low of 7°C to a high of 16°C. At night, you can expect temperatures between -1°C and 6°C.

Looking for sun? April isn’t a good month to be in Long Island. There’s too much chance of rain this month.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in April for Long Island, Maine. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 29°C in 2017, Long Island reached the highest temperature in April over the past 10 years. The lowest daytime temperature in this month was -4°C in 2016. The extreme nighttime temperatures ranged from a lowest recorded value of -8°C to a highest value of 13°C.

Water temperature

The water temperature at Long Island is 11°C this month. This is too cold to swim without protective gear.

Precipitation and snowfall

In April, there is an average of 143 mm of precipitation, spread over 16 days. Of the total precipitation, about 5,0 cm falls as snow in April. The wind speed is around 4 Bft, mostly coming from the South.

Daily weather in April for Long Island

Click on any day in April to get detailed info about the usual weather on that day in Long Island. Check out the historical temperatures and precipitation over the past 10 years on this day.

April weather comparison

  Long Island New York
Average temperature 12°C 17°C
Max. temperature 16°C 22°C
Min. temperature -1°C -5°C
Total precipitation 143 mm 81 mm
Rainy days 16 days 11 days
Total snowfall 5,0 cm 0,4 cm
Snowy days 2 days 1 day

Start of April

The month of April starts in Long Island with cold temps, averaging around 10°C during the day and nights around 1°C.

Mid April

By mid-April, daytime temps rise to around 14°C, with nights around 4°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.

End of April

By the end of April, the average daytime temperature in Long Island is around 13°C, while nighttime temps are about 5°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.

Find affordable trips to Long Island

UV index

The UV index is a maximum of 6 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.

Check out the climate of Long Island for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in April in Long Island, Maine. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in April in Long Island

Temperature in April in Long Island over the years

Precipitation charts

These charts show the average amount of precipitation in April in Long Island, Maine. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in April in Long Island

Total precipitation in April in Long Island over the years

Daily Snowfall in April in Long Island

Snowfall in April in Long Island per year

Daily UV index in April in Long Island

This chart shows the average daily UV index in April in Long Island, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in April in Long Island

Have you been to Long Island in April?

Share your weather experience in April in Long Island.

Your email will not be shown in the review and will not be shared with others.

Average weather in Long Island by month

Click on a month below to see detailed weather info for Long Island. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.