Brooklyn
September
Weather in Brooklyn for September 2025
Your guide to Brooklyn weather in September - trends and predictions
In general, the average temperature in Brooklyn at the beginning of September is 27.6 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 19.1 °F by the end of September.
The climate of Brooklyn in September is notably wet, with an average of 14 rainy days.
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16
Dry days
14
Rainy days
0
Snow days
24°/17°
Temperatures
23 km/h
Avg max wind
72 %
Avg humidity
Brooklyn in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  26° | 2  27° | 3 28° | 4 29° | 5 27° | 6 28° | 7  28° |
| 8  25° | 9 26° | 10  26° | 11 25° | 12  25° | 13  24° | 14  25° |
| 15 23° | 16 24° | 17  23° | 18 21° | 19 23° | 20 22° | 21 24° |
| 22  21° | 23  19° | 24 19° | 25 18° | 26 21° | 27 20° | 28 20° |
| 29 17° | 30 19° |
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Temperatures trend during September in Brooklyn
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 | Sunny | 26° /19° | 3.5 mm | 7 | |
| Sept. 2 | Partly cloudy | 27° /18° | 0 mm | 7 | |
| Sept. 3 | Sunny | 28° /18° | 0 mm | 7 | |
| Sept. 4 | Partly cloudy | 29° /21° | 0 mm | 7 | |
| Sept. 5 | Partly cloudy | 27° /21° | 0.1 mm | 7 | |
| Sept. 6 | Partly cloudy | 28° /22° | 0.1 mm | 7 | |
| Sept. 7 | Thundery outbreaks possible | 28° /19° | 4 mm | 6 | |
| Sept. 8 | Patchy light rain with thunder | 25° /18° | 1.5 mm | 6 | |
| Sept. 9 | Thundery outbreaks possible | 26° /19° | 2 mm | 6 | |
| Sept. 10 | Light rain shower | 26° /20° | 2.3 mm | 7 | |
| Sept. 11 | Light rain shower | 25° /20° | 1.2 mm | 6 | |
| Sept. 12 | Cloudy | 25° /19° | 0 mm | 6 | |
| Sept. 13 | Moderate or heavy rain shower | 24° /18° | 14.6 mm | 6 | |
| Sept. 14 | Overcast | 25° /18° | 0 mm | 6 | |
| Sept. 15 | Overcast | 23° /16° | 0 mm | 6 | |
| Sept. 16 | Overcast | 24° /17° | 0 mm | 5 | |
| Sept. 17 | Light drizzle | 23° /15° | 0.3 mm | 6 | |
| Sept. 18 | Light rain shower | 21° /17° | 14.8 mm | 5 | |
| Sept. 19 | Partly cloudy | 23° /16° | 9 mm | 6 | |
| Sept. 20 | Sunny | 22° /15° | 0 mm | 6 | |
| Sept. 21 | Partly cloudy | 24° /14° | 0 mm | 6 | |
| Sept. 22 | Mist | 21° /14° | 0 mm | 6 | |
| Sept. 23 | Heavy rain | 19° /15° | 26.1 mm | 5 | |
| Sept. 24 | Light rain | 19° /15° | 3.3 mm | 5 | |
| Sept. 25 | Light rain | 18° /15° | 29.9 mm | 4 | |
| Sept. 26 | Light drizzle | 21° /16° | 16.1 mm | 5 | |
| Sept. 27 | Overcast | 20° /14° | 5.5 mm | 5 | |
| Sept. 28 | Patchy rain possible | 20° /16° | 0 mm | 5 | |
| Sept. 29 | Moderate or heavy rain shower | 17° /15° | 26.3 mm | 4 | |
| Sept. 30 | Light rain shower | 19° /14° | 10.5 mm | 4 | |
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Important Notice
Our weather forecast for Brooklyn 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 Brooklyn forecast closer to your planned date for the most up-to-date weather information.
Brooklyn in September - FAQ
What are the expected maximum and minimum temperatures in Brooklyn during September?
During September, expect a variety of temperatures with highs around 24° and lows near 17°, suitable for diverse activities and preferences.
How much rainfall should be expected in Brooklyn during September?
Significant rainfall exceeding 241.3 mm is expected in Brooklyn during September, occurring over more than 14 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Brooklyn during September?
The average wind speed in Brooklyn during September is 23 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Brooklyn
Explore the daily rainfall trends and prepare for Brooklyns September weather 💧
UV exposure in Brooklyn during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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