New York County (Manhattan)
September
Weather in New York County, New York for September 2027
Your guide to New York County weather in September - trends and predictions
In general, the average temperature in New York County at the beginning of September is 27.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 20.8 °C by the end of September.
New York County experiences moderate rainfall in September, with an average of 9 rainy days and a total precipitation of 230.5 mm.
Is September a good time to visit New York County? check out the best time to travel to New York County page.
✨ Is September a good time to visit New York County? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
21
Dry days
9
Rainy days
0
Snow days
24°/17°
Temperatures
18 km/h
Avg max wind
68 %
Avg humidity
New York County Weather September
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Temperatures trend during September in New York County
See the weather trend as well as the moving average line
September weather in New York County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Moderate rain | 28° /19° | 20.5 mm | 5 | |
| Sept. 2 |  Overcast | 26° /18° | 0.1 mm | 5 | |
| Sept. 3 |  Partly cloudy | 27° /17° | 0.9 mm | 5 | |
| Sept. 4 |  Sunny | 29° /20° | 0 mm | 7 | |
| Sept. 5 | Moderate rain | 29° /20° | 10.9 mm | 7.8 | |
| Sept. 6 | Moderate rain | 30° /21° | 18.3 mm | 7 | |
| Sept. 7 |  Thundery outbreaks possible | 26° /17° | 24.5 mm | 6 | |
| Sept. 8 | Sunny | 27° /16° | 0.8 mm | 6 | |
| Sept. 9 |  Light rain shower | 27° /17° | 1.9 mm | 5 | |
| Sept. 10 | Light rain shower | 26° /19° | 1.4 mm | 5 | |
| Sept. 11 | Light rain shower | 27° /18° | 0.6 mm | 7 | |
| Sept. 12 |  Cloudy | 26° /18° | 0 mm | 6 | |
| Sept. 13 | Moderate rain | 25° /19° | 24.9 mm | 5 | |
| Sept. 14 | Cloudy | 26° /18° | 0 mm | 6 | |
| Sept. 15 | Patchy rain possible | 24° /17° | 1.5 mm | 6 | |
| Sept. 16 | Overcast | 25° /17° | 0 mm | 6 | |
| Sept. 17 | Overcast | 24° /17° | 0.3 mm | 6 | |
| Sept. 18 |  Light rain | 24° /19° | 7 mm | 5 | |
| Sept. 19 | Patchy rain possible | 24° /17° | 2.3 mm | 5 | |
| Sept. 20 | Light rain | 21° /16° | 3.6 mm | 5 | |
| Sept. 21 | Overcast | 23° /15° | 0.6 mm | 4 | |
| Sept. 22 |  Mist | 22° /15° | 0.8 mm | 4 | |
| Sept. 23 | Moderate rain | 21° /15° | 11.9 mm | 4 | |
| Sept. 24 | Patchy rain possible | 21° /15° | 1.5 mm | 5 | |
| Sept. 25 | Moderate rain | 20° /16° | 24.3 mm | 4 | |
| Sept. 26 | Moderate rain | 22° /16° | 19.5 mm | 5 | |
| Sept. 27 | Moderate rain | 21° /15° | 16.6 mm | 4 | |
| Sept. 28 | Moderate rain | 20° /16° | 20.3 mm | 4 | |
| Sept. 29 | Moderate rain | 20° /15° | 11.6 mm | 4 | |
| Sept. 30 | Light rain | 22° /16° | 4.1 mm | 4 | |
| Next | |||||
Important Notice
Our weather forecast for New York 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 New York County forecast closer to your planned date for the most up-to-date weather information.
Change Month
New York County in September - FAQ
What are the expected maximum and minimum temperatures in New York County 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 New York County during September?
Significant rainfall exceeding 230.5 mm is expected in New York County during September, occurring over more than 9 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in New York County during September?
The average wind speed in New York County during September is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in New York County
Explore the daily rainfall trends and prepare for New York Countys September weather 💧
Typically, New York County has 9 rainy days in September with a total of 230.5 mm of rainfall.
UV exposure in New York County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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