Nassau County (Glen Cove)
September
Weather in Nassau County, New York for September 2027
Your guide to Nassau County weather in September - trends and predictions
Nassau County experiences moderate rainfall in September, with an average of 10 rainy days and a total precipitation of 343.6 mm.
Is September a good time to visit Nassau County? check out the best time to travel to Nassau County page.
✨ Is September a good time to visit Nassau County? – Ask the AI Weatherman
Rain 🌧️
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20
Dry days
10
Rainy days
0
Snow days
23°/17°
Temperatures
19 km/h
Avg max wind
72 %
Avg humidity
Nassau County Weather September
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Temperatures trend during September in Nassau County
See the weather trend as well as the moving average line
September weather in Nassau County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Heavy rain | 26° /20° | 147.5 mm | 4 | |
| Sept. 2 |  Sunny | 24° /18° | 0.1 mm | 4 | |
| Sept. 3 |  Patchy rain possible | 26° /18° | 1.1 mm | 3 | |
| Sept. 4 | Patchy rain possible | 26° /19° | 2.4 mm | 7 | |
| Sept. 5 | Heavy rain | 28° /20° | 19.8 mm | 7 | |
| Sept. 6 |  Moderate rain | 25° /19° | 23.4 mm | 7 | |
| Sept. 7 | Moderate rain | 23° /15° | 24 mm | 6 | |
| Sept. 8 |  Fog | 26° /15° | 0 mm | 6 | |
| Sept. 9 |  Partly cloudy | 25° /17° | 0.2 mm | 4 | |
| Sept. 10 |  Overcast | 25° /19° | 0.3 mm | 3 | |
| Sept. 11 | Sunny | 27° /18° | 0 mm | 7 | |
| Sept. 12 | Partly cloudy | 25° /17° | 0 mm | 6 | |
| Sept. 13 | Heavy rain | 24° /19° | 37.4 mm | 4 | |
| Sept. 14 |  Cloudy | 24° /19° | 0 mm | 6 | |
| Sept. 15 | Mist | 22° /17° | 0 mm | 6 | |
| Sept. 16 | Fog | 23° /17° | 0 mm | 6 | |
| Sept. 17 | Overcast | 23° /19° | 0.1 mm | 5 | |
| Sept. 18 |  Light rain | 26° /20° | 4 mm | 5 | |
| Sept. 19 | Partly cloudy | 23° /19° | 0 mm | 6 | |
| Sept. 20 | Light rain | 20° /16° | 4.4 mm | 3 | |
| Sept. 21 | Patchy rain possible | 20° /16° | 1.7 mm | 3 | |
| Sept. 22 | Light rain | 20° /16° | 2.7 mm | 3 | |
| Sept. 23 | Cloudy | 22° /17° | 0 mm | 3 | |
| Sept. 24 | Patchy rain possible | 21° /16° | 1.8 mm | 4 | |
| Sept. 25 | Light rain | 22° /17° | 7.9 mm | 3 | |
| Sept. 26 | Moderate rain | 21° /17° | 14.3 mm | 4 | |
| Sept. 27 | Moderate rain | 21° /16° | 21.6 mm | 4 | |
| Sept. 28 | Heavy rain | 20° /17° | 28.8 mm | 3 | |
| Sept. 29 | Mist | 22° /16° | 0.1 mm | 3 | |
| Sept. 30 | Overcast | 23° /18° | 0 mm | 4 | |
| Next | |||||
Important Notice
Our weather forecast for Nassau County in September 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.
Change Month
Nassau County in September - FAQ
What are the expected maximum and minimum temperatures in Nassau County during September?
During September, expect a variety of temperatures with highs around 23° and lows near 17°, suitable for diverse activities and preferences.
How much rainfall should be expected in Nassau County during September?
Significant rainfall exceeding 343.6 mm is expected in Nassau County during September, occurring over more than 10 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Nassau County during September?
The average wind speed in Nassau County during September is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Nassau County
Explore the daily rainfall trends and prepare for Nassau Countys September weather 💧
Typically, Nassau County has 10 rainy days in September with a total of 343.6 mm of rainfall.
UV exposure in Nassau County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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