Buffalo (NY)
September
Weather in Buffalo, New York for September 2026
Your guide to Buffalo weather in September - trends and predictions
So far, September 2026 in Buffalo shows a warmer trend than usual by 2.3 °F.
Expect cooler weather in the next days in Buffalo with the forecast suggesting a temperature of 22.4 °F, lower than the historical average.
In general, the average temperature in Buffalo at the beginning of September is 25.6 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 22.1 °F by the end of September.
Buffalo experiences moderate rainfall in September, with an average of 8 rainy days and a total precipitation of 45.7 mm.
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Temperatures
Rain 🌧️
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22
Dry days
8
Rainy days
0
Snow days
23°/14°
Temperatures
14 km/h
Avg max wind
71 %
Avg humidity
Buffalo Weather September
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Temperatures trend during September in Buffalo
See the weather trend as well as the moving average line
September weather in Buffalo day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Partly cloudy | 27° /15° | 0.3 mm | 7 | |
| Sept. 2 |  Overcast | 25° /15° | 5.3 mm | 5 | |
| Sept. 3 |  Cloudy | 26° /16° | 2.5 mm | 5 | |
| Sept. 4 | Overcast | 26° /16° | 0 mm | 6 | |
| Sept. 5 | Partly cloudy | 27° /15° | 0 mm | 7 | |
| Sept. 6 |  Thundery outbreaks possible | 26° /16° | 1.5 mm | 6 | |
| Sept. 7 | Thundery outbreaks possible | 22° /13° | 6.7 mm | 5 | |
| Sept. 8 |  Light rain shower | 23° /12° | 1.2 mm | 5 | |
| Sept. 9 |  Mist | 24° /14° | 2.9 mm | 4 | |
| Sept. 10 | Light rain shower | 23° /15° | 4 mm | 5 | |
| Sept. 11 |  Sunny | 24° /13° | 0 mm | 6.2 | |
| Sept. 12 | Sunny | 27° /15° | 0.3 mm | 5.5 | |
| Sept. 13 | Patchy rain possible | 25° /18° | 4.8 mm | 5.5 | |
| Sept. 14 | Overcast | 19° /13° | 0 mm | 5.8 | |
| Sept. 15 | Overcast | 28° /15° | 3.8 mm | 7 | |
| Sept. 16 | Light rain shower | 27° /18° | 13.1 mm | 7 | |
| Sept. 17 | Light rain shower | 18° /15° | 5.4 mm | 4 | |
| Sept. 18 | Patchy rain possible | 17° /13° | 0.1 mm | 5 | |
| Sept. 19 | Sunny | 20° /12° | 0 mm | 5 | |
| Sept. 20 | Sunny | 22° /14° | 0 mm | 6 | |
| Sept. 21 | Sunny | 24° /16° | 0 mm | 6 | |
| Sept. 22 | Overcast | 21° /12° | 0.3 mm | 5 | |
| Sept. 23 | Overcast | 18° /12° | 0 mm | 5 | |
| Sept. 24 | Sunny | 23° /15° | 0 mm | 6 | |
| Sept. 25 | Mist | 23° /15° | 21.4 mm | 5 | |
| Sept. 26 | Fog | 21° /14° | 0 mm | 5 | |
| Sept. 27 | Mist | 22° /12° | 0 mm | 5 | |
| Sept. 28 | Overcast | 20° /14° | 0.2 mm | 5 | |
| Sept. 29 | Fog | 23° /13° | 0.1 mm | 5 | |
| Sept. 30 | Overcast | 23° /13° | 0 mm | 6 | |
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Important Notice
Our weather forecast for Buffalo 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 Buffalo forecast closer to your planned date for the most up-to-date weather information.
Change Month
Buffalo in September - FAQ
What are the expected maximum and minimum temperatures in Buffalo during September?
Enjoy moderate daytime temperatures of up to 23° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Buffalo during September?
In September, Buffalo can expect light to moderate rainfall, totaling 45.7 mm across approximately 8 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Buffalo during September?
The average wind speed in Buffalo during September is 14 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Buffalo
Explore the daily rainfall trends and prepare for Buffalos September weather 💧
Typically, Buffalo has 8 rainy days in September with a total of 45.7 mm of rainfall.
UV exposure in Buffalo during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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