Weather in Bronx County, New York for September 2025
Rip Current Statement - See hour by hour.
Until now, September 2025 in Bronx County is cooler than usual, with temperatures averaging 24 °F, this is -2.5 °F below the typical seasonal average.
Expect cooler weather in the next days in Bronx County with the forecast suggesting a temperature of 23.9 °F, lower than the historical average.
In general, the average temperature in Bronx County at the beginning of September is 27.4 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 23.9 °F by the end of September.
Bronx County in September brings notable rainfall, with an average of 17 rainy days and a total precipitation of 169.1 mm.
New! Chat with our AI weatherman - it’s amazing and free.
Official Weather Alert ⚠️
Temperatures
Rain 🌧️
More
Bronx County Weather September
Temperatures trend during September in Bronx County
September weather in Bronx County day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Sunny | 26° /17° | 1.2 mm | 6 | |
| Sept. 2 |  Partly cloudy | 28° /17° | 0 mm | 7 | |
| Sept. 3 | Partly cloudy | 27° /16° | 0 mm | 6 | |
| Sept. 4 | Partly cloudy | 28° /18° | 0 mm | 7 | |
| Sept. 5 | Partly cloudy | 30° /19° | 14.2 mm | 7 | |
| Sept. 6 | Partly cloudy | 29° /20° | 21.3 mm | 6 | |
| Sept. 7 |  Thundery outbreaks possible | 24° /17° | 30.8 mm | 6 | |
| Sept. 8 |  Patchy light rain with thunder | 26° /15° | 1 mm | 6 | |
| Sept. 9 | Partly cloudy | 26° /17° | 3.2 mm | 6 | |
| Sept. 10 |  Light rain shower | 25° /17° | 1.9 mm | 6 | |
| Sept. 11 | Light rain shower | 27° /17° | 2.3 mm | 7 | |
| Sept. 12 |  Mist | 26° /17° | 0 mm | 6 | |
| Sept. 13 |  Moderate or heavy rain shower | 26° /18° | 8.9 mm | 6 | |
| Sept. 14 |  Cloudy | 26° /17° | 0.7 mm | 6 | |
| Sept. 15 |  Overcast | 24° /16° | 0 mm | 6 | |
| Sept. 16 | Overcast | 24° /16° | 0 mm | 5 | |
| Sept. 17 | Patchy rain possible | 19° /16° | 2.4 mm | 0.5 | |
| Sept. 18 | Cloudy | 30° /19° | 0 mm | 1 | |
| Sept. 19 | Partly cloudy | 26° /19° | 0 mm | 1.4 | |
| Sept. 20 | Sunny | 23° /13° | 0 mm | 1.4 | |
| Sept. 21 | Sunny | 22° /16° | 0 mm | 0 | |
| Sept. 22 | Partly cloudy | 23° /16° | 0 mm | 5 | |
| Sept. 23 | Partly cloudy | 25° /18° | 0 mm | 6 | |
| Sept. 24 | Partly cloudy | 27° /19° | 0 mm | 6 | |
| Sept. 25 | Sunny | 28° /20° | 0 mm | 6 | |
| Sept. 26 | Patchy rain possible | 28° /21° | 3 mm | 5 | |
| Sept. 27 |  Moderate rain | 23° /19° | 8.4 mm | 5 | |
| Sept. 28 | Moderate rain | 20° /19° | 7.4 mm | 4 | |
| Sept. 29 | Patchy rain possible | 21° /18° | 0.2 mm | 4 | |
| Sept. 30 | Patchy rain possible | 20° /19° | 1.1 mm | 4 | |
| Next | |||||
Bronx County in September - FAQ
September rainfall patterns in Bronx County
UV exposure in Bronx County during September
Quick links
Where is Bronx County?Get accurate weather forecasts for Bronx County, located at latitude 40.85 and longitude -73.866. Stay updated with localized weather information tailored for Bronx County.