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United States weather

Weather in Long Island, New York for May 2027

Your guide to Long Island weather in May - trends and predictions

    Temperatures

  • In general, the average temperature in Long Island at the beginning of May is 16.5 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 20.2 °C by the end of May.

    • Rain 🌧️

  • The climate of Long Island in May is notably wet, with an average of 11 rainy days, and a total of 192.5 mm of precipitation.

    • More

  • Is May a good time to visit Long Island? check out the best time to travel to Long Island page.

  • ✨ Is May a good time to visit Long Island? – Ask the AI Weatherman

Average dry days
20
Dry days
Average rainy days
11
Rainy days
Average snowy days
0
Snow days
Average temperatures
18°/12°
Temperatures
Average wind speed
20 km/h
Avg max wind
Average humidity
76 %
Avg humidity

Long Island Weather May

Move between months or click on a day
April
June
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Cloudy
16°
2
Light rain
17°
3
Overcast
17°
4
Light rain
17°
5
Moderate or heavy rain shower
17°
6
Heavy rain
15°
7
Patchy rain possible
18°
8
Overcast
18°
9
Moderate rain
15°
10
Overcast
20°
11
Partly cloudy
18°
12
Partly cloudy
17°
13
Patchy rain possible
17°
14
Moderate rain
17°
15
Fog
18°
16
Fog
20°
17
Mist
23°
18
Overcast
22°
19
Sunny
23°
20
Light rain
23°
21
Light rain
16°
22
Moderate rain
17°
23
Moderate or heavy rain shower
16°
24
Moderate rain
18°
25
Patchy rain possible
20°
26
Patchy rain possible
21°
27
Moderate or heavy rain shower
20°
28
Patchy rain possible
20°
29
Light rain
21°
30
Light rain
17°
31
Heavy rain
22°

Temperatures trend during May in Long Island

See the weather trend as well as the moving average line

May weather in Long Island day by day

Click on a date for more information
April June
Date Weather Temperatures Rain UV More
May 1 Cloudy
Cloudy
 16° /9° 0 mm 7
May 2 Light rain
Light rain
 17° /10° 5.5 mm 6
May 3 Overcast
Overcast
 17° /10° 0.2 mm 7
May 4 Light rain
Light rain
 17° /11° 4.9 mm 7
May 5 Moderate or heavy rain shower
Moderate or heavy rain shower
 17° /12° 8.8 mm 7
May 6 Heavy rain
Heavy rain
 15° /12° 39.2 mm 5
May 7 Patchy rain possible
Patchy rain possible
 18° /11° 1.8 mm 6
May 8 Overcast
Overcast
 18° /10° 0.4 mm 7
May 9 Moderate rain
Moderate rain
 15° /11° 13.1 mm 3
May 10 Overcast
Overcast
 20° /10° 0.3 mm 6
May 11 Partly cloudy
Partly cloudy
 18° /12° 0.2 mm 6
May 12 Partly cloudy
Partly cloudy
 17° /10° 0.1 mm 8
May 13 Patchy rain possible
Patchy rain possible
 17° /12° 0.3 mm 6
May 14 Moderate rain
Moderate rain
 17° /12° 12.5 mm 3
May 15 Fog
Fog
 18° /12° 0 mm 6
May 16 Fog
Fog
 20° /13° 0 mm 7
May 17 Mist
Mist
 23° /15° 0 mm 7
May 18 Overcast
Overcast
 22° /16° 0 mm 7
May 19 Sunny
Sunny
 23° /13° 0.1 mm 8
May 20 Light rain
Light rain
 23° /13° 3.2 mm 7
May 21 Light rain
Light rain
 16° /11° 5.2 mm 4
May 22 Moderate rain
Moderate rain
 17° /11° 22.6 mm 6
May 23 Moderate or heavy rain shower
Moderate or heavy rain shower
 16° /10° 5.9 mm 4
May 24 Moderate rain
Moderate rain
 18° /12° 13.8 mm 4
May 25 Patchy rain possible
Patchy rain possible
 20° /12° 1 mm 5
May 26 Patchy rain possible
Patchy rain possible
 21° /14° 0.3 mm 7
May 27 Moderate or heavy rain shower
Moderate or heavy rain shower
 20° /13° 8.4 mm 5
May 28 Patchy rain possible
Patchy rain possible
 20° /15° 1.9 mm 7
May 29 Light rain
Light rain
 21° /14° 6.2 mm 7
May 30 Light rain
Light rain
 17° /11° 8.1 mm 6
May 31 Heavy rain
Heavy rain
 22° /10° 28.5 mm 7
Next
Important Notice
Our weather forecast for Long Island in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Long Island forecast closer to your planned date for the most up-to-date weather information.
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Long Island in May - FAQ

What are the expected maximum and minimum temperatures in Long Island during May?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Long Island during May?
Significant rainfall exceeding 192.5 mm is expected in Long Island during May, occurring over more than 11 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Long Island during May?
The average wind speed in Long Island during May is 20 km/h, suggesting breezy to windy conditions, depending on your activities.

May rainfall patterns in Long Island

Explore the daily rainfall trends and prepare for Long Islands May weather 💧
Typically, Long Island has 11 rainy days in May with a total of 192.5 mm of rainfall.

UV exposure in Long Island during May

Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
Quick links
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Location coordinates Where is Long Island?

Get accurate weather forecasts for Long Island, located at latitude 40.817 and longitude -73.066. Stay updated with localized weather information tailored for Long Island.

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