Nassau County (Glen Cove)
May
Weather in Nassau County, New York for May 2026
Your guide to Nassau County weather in May - trends and predictions
In general, the average temperature in Nassau County at the beginning of May is 18.6 °F. As the month progressed, temperatures tended to slightly decrease, reaching an average of 18.1 °F by the end of May.
Nassau County in May brings notable rainfall, with an average of 19 rainy days and a total precipitation of 251.3 mm.
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Temperatures
Rain 🌧️
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12
Dry days
19
Rainy days
0
Snow days
18°/12°
Temperatures
20 km/h
Avg max wind
83 %
Avg humidity
Nassau County Weather May
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Temperatures trend during May in Nassau County
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May weather in Nassau County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Overcast | 18° /9° | 0 mm | 4 | |
| May 2 |  Patchy rain possible | 23° /11° | 2 mm | 5 | |
| May 3 |  Moderate rain at times | 21° /13° | 2.6 mm | 5 | |
| May 4 |  Heavy rain at times | 18° /13° | 12 mm | 4 | |
| May 5 | Moderate or heavy rain shower | 16° /12° | 16.2 mm | 4 | |
| May 6 | Moderate or heavy rain shower | 15° /12° | 24.5 mm | 4 | |
| May 7 | Patchy rain possible | 19° /11° | 0.4 mm | 4 | |
| May 8 | Moderate or heavy rain shower | 21° /12° | 4.3 mm | 5 | |
| May 9 | Moderate or heavy rain shower | 15° /11° | 23.9 mm | 4 | |
| May 10 | Overcast | 20° /10° | 0.2 mm | 5 | |
| May 11 |  Partly cloudy | 19° /13° | 0 mm | 5 | |
| May 12 | Partly cloudy | 19° /11° | 0 mm | 5 | |
| May 13 | Moderate rain at times | 18° /13° | 2.1 mm | 4 | |
| May 14 | Moderate or heavy rain shower | 18° /13° | 16.9 mm | 4 | |
| May 15 | Moderate or heavy rain shower | 20° /13° | 4.3 mm | 5 | |
| May 16 | Patchy rain possible | 21° /15° | 0.2 mm | 5 | |
| May 17 | Moderate or heavy rain shower | 22° /15° | 2.1 mm | 5 | |
| May 18 | Patchy rain possible | 20° /14° | 0.2 mm | 5 | |
| May 19 |  Sunny | 19° /10° | 0 mm | 5 | |
| May 20 | Sunny | 16° /8° | 0 mm | 5 | |
| May 21 | Patchy rain possible | 13° /10° | 2.8 mm | 3 | |
| May 22 | Moderate or heavy rain shower | 11° /8° | 18.6 mm | 3 | |
| May 23 | Patchy rain possible | 14° /6° | 1.5 mm | 3 | |
| May 24 | Patchy rain possible | 15° /9° | 0.2 mm | 4 | |
| May 25 |  Cloudy | 17° /10° | 0 mm | 4 | |
| May 26 | Cloudy | 18° /12° | 0 mm | 4 | |
| May 27 |  Mist | 18° /11° | 0 mm | 4 | |
| May 28 | Overcast | 14° /12° | 3.8 mm | 3 | |
| May 29 |  Light rain | 21° /13° | 15 mm | 5 | |
| May 30 | Moderate or heavy rain shower | 19° /14° | 16 mm | 4 | |
| May 31 | Light rain shower | 20° /12° | 81.6 mm | 5 | |
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Important Notice
Our weather forecast for Nassau County 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 Nassau County forecast closer to your planned date for the most up-to-date weather information.
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Nassau County in May - FAQ
What are the expected maximum and minimum temperatures in Nassau County 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 Nassau County during May?
Significant rainfall exceeding 251.3 mm is expected in Nassau County during May, occurring over more than 19 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Nassau County during May?
The average wind speed in Nassau County during May is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Nassau County
Explore the daily rainfall trends and prepare for Nassau Countys May weather 💧
UV exposure in Nassau County during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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