Weather in Manhattan, New York for September 2025
Until now, September 2025 in Manhattan is cooler than usual, with temperatures averaging 24.1 °F, this is -3 °F below the typical seasonal average.
Expect cooler weather in the next days in Manhattan with the forecast suggesting a temperature of 24.5 °F, lower than the historical average.
In general, the average temperature in Manhattan at the beginning of September is 27.7 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 20.7 °F by the end of September.
Manhattan in September brings notable rainfall, with an average of 17 rainy days and a total precipitation of 183.3 mm.
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Manhattan Weather September
Temperatures trend during September in Manhattan
September weather in Manhattan day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Sunny | 26° /18° | 1.7 mm | 6 | |
| Sept. 2 |  Partly cloudy | 28° /18° | 0 mm | 7 | |
| Sept. 3 | Partly cloudy | 27° /16° | 0 mm | 6 | |
| Sept. 4 | Partly cloudy | 28° /19° | 0 mm | 7 | |
| Sept. 5 | Partly cloudy | 30° /20° | 14.5 mm | 7 | |
| Sept. 6 | Partly cloudy | 30° /21° | 24.4 mm | 7 | |
| Sept. 7 |  Thundery outbreaks possible | 25° /17° | 32.7 mm | 6 | |
| Sept. 8 |  Light rain shower | 26° /15° | 1 mm | 6 | |
| Sept. 9 | Light rain shower | 26° /17° | 2.5 mm | 6 | |
| Sept. 10 | Light rain shower | 25° /18° | 1.6 mm | 6 | |
| Sept. 11 | Light rain shower | 27° /18° | 0.7 mm | 7 | |
| Sept. 12 |  Cloudy | 26° /18° | 0 mm | 6 | |
| Sept. 13 | Patchy rain possible | 25° /19° | 1.2 mm | 1.1 | |
| Sept. 14 | Partly cloudy | 28° /18° | 0 mm | 1.2 | |
| Sept. 15 | Partly cloudy | 26° /19° | 0 mm | 1.3 | |
| Sept. 16 | Partly cloudy | 26° /18° | 0 mm | 1.4 | |
| Sept. 17 | Partly cloudy | 24° /20° | 0.1 mm | 0 | |
| Sept. 18 | Partly cloudy | 27° /20° | 0 mm | 6 | |
| Sept. 19 | Sunny | 32° /21° | 0 mm | 7 | |
| Sept. 20 | Patchy rain possible | 31° /23° | 1 mm | 6 | |
| Sept. 21 | Patchy rain possible | 23° /12° | 0.2 mm | 4 | |
| Sept. 22 | Patchy rain possible | 17° /11° | 0.1 mm | 3 | |
| Sept. 23 | Patchy rain possible | 17° /15° | 1.2 mm | 4 | |
| Sept. 24 |  Overcast | 21° /16° | 0 mm | 4 | |
| Sept. 25 | Overcast | 22° /18° | 0 mm | 5 | |
| Sept. 26 | Partly cloudy | 24° /19° | 0 mm | 6 | |
| Sept. 27 | Cloudy | 21° /14° | 8.7 mm | 5 | |
| Sept. 28 | Overcast | 21° /15° | 0 mm | 5 | |
| Sept. 29 |  Moderate or heavy rain shower | 17° /15° | 23.2 mm | 4 | |
| Sept. 30 | Light rain shower | 19° /14° | 8.1 mm | 4 | |
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Manhattan in September - FAQ
September rainfall patterns in Manhattan
UV exposure in Manhattan during September
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