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.
Brooklyn in September brings notable rainfall, with an average of 16 rainy days and a total precipitation of 171.2 mm.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
14
Dry days
16
Rainy days
0
Snow days
23°/17°
Temperatures
23 km/h
Avg max wind
69 %
Avg humidity
Brooklyn in September average weather
Move between months or click on a day
| 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° |
You can click on date
Access Brooklyn weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Temperatures trend during September in Brooklyn
See the weather trend as well as the moving average line
September weather day by day
Click on a date for more information
| 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 | |
| Next | |||||
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 23° and lows near 17°, suitable for diverse activities and preferences.
How much rainfall should be expected in Brooklyn during September?
Significant rainfall exceeding 171.2 mm is expected in Brooklyn during September, occurring over more than 16 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 ☀️
Quick links
You are here
Where is Brooklyn?Get accurate weather forecasts for Brooklyn, located at latitude 40.65 and longitude -73.95. Stay updated with localized weather information tailored for Brooklyn.
Related locations
Select a location for accurate weather forecast
More Locations Found a mistake?
We appreciate your attention to details. Tell us here.