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United States weather

Weather in Buffalo, New York for September 2025

Your guide to Buffalo weather in September - trends and predictions

    Temperatures

  • Until now, September 2025 in Buffalo is cooler than usual, with temperatures averaging 22.1 °F, this is -2.2 °F below the typical seasonal average.

  • The forecast for the next days in Buffalo predicts temperatures to be around 24 °F, close to the historical average.

  • In general, the average temperature in Buffalo at the beginning of September is 24.9 °F. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 21.9 °F by the end of September.

    • Rain 🌧️

  • Buffalo experiences moderate rainfall in September, with an average of 8 rainy days and a total precipitation of 29.2 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
22
Dry days
Average rainy days
8
Rainy days
Average snowy days
0
Snow days
Average temperatures
24°/14°
Temperatures
Average wind speed
14 km/h
Avg max wind
Average humidity
70 %
Avg humidity

Buffalo Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Partly cloudy
26°
2
Overcast
22°
3
Cloudy
25°
4
Overcast
26°
5
Partly cloudy
28°
6
Thundery outbreaks possible
26°
7
Thundery outbreaks possible
21°
8
Light rain shower
21°
9
Mist
23°
10
Light rain shower
22°
11
Mist
25°
12
Overcast
26°
13
Overcast
23°
14
Mist
28°
15
Mist
26°
16
Partly cloudy
27°
17
Sunny
26°
18
Sunny
27°
19
Sunny
25°
20
Sunny
27°
21
Patchy rain possible
27°
22
Patchy rain possible
19°
23
Sunny
20°
24
Patchy rain possible
18°
25
Sunny
23°
26
Sunny
22°
27
Sunny
25°
28
Patchy rain possible
20°
29
Patchy rain possible
22°
30
Overcast
23°

Temperatures trend during September in Buffalo

See the weather trend as well as the moving average line

September weather in Buffalo day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
Sept. 1 Partly cloudy
Partly cloudy
 26° /13° 0.4 mm 6
Sept. 2 Overcast
Overcast
 22° /14° 0 mm 5
Sept. 3 Cloudy
Cloudy
 25° /14° 0 mm 6
Sept. 4 Overcast
Overcast
 26° /16° 0 mm 6
Sept. 5 Partly cloudy
Partly cloudy
 28° /15° 0 mm 7
Sept. 6 Thundery outbreaks possible
Thundery outbreaks possible
 26° /17° 2 mm 6
Sept. 7 Thundery outbreaks possible
Thundery outbreaks possible
 21° /14° 9 mm 5
Sept. 8 Light rain shower
Light rain shower
 21° /13° 1.6 mm 5
Sept. 9 Mist
Mist
 23° /13° 0.6 mm 5
Sept. 10 Light rain shower
Light rain shower
 22° /14° 5.3 mm 5
Sept. 11 Mist
Mist
 25° /13° 0 mm 6
Sept. 12 Overcast
Overcast
 26° /14° 1.1 mm 6
Sept. 13 Overcast
Overcast
 23° /14° 0 mm 5
Sept. 14 Mist
Mist
 28° /16° 0 mm 1.3
Sept. 15 Mist
Mist
 26° /11° 0 mm 1.4
Sept. 16 Partly cloudy
Partly cloudy
 27° /12° 0 mm 1.4
Sept. 17 Sunny
Sunny
 26° /16° 0 mm 1.2
Sept. 18 Sunny
Sunny
 27° /16° 0 mm 0
Sept. 19 Sunny
Sunny
 25° /17° 0 mm 6
Sept. 20 Sunny
Sunny
 27° /14° 0 mm 5
Sept. 21 Patchy rain possible
Patchy rain possible
 27° /18° 1.9 mm 5
Sept. 22 Patchy rain possible
Patchy rain possible
 19° /13° 0.9 mm 4
Sept. 23 Sunny
Sunny
 20° /10° 0 mm 4
Sept. 24 Patchy rain possible
Patchy rain possible
 18° /13° 0.3 mm 3
Sept. 25 Sunny
Sunny
 23° /13° 0 mm 5
Sept. 26 Sunny
Sunny
 22° /13° 0 mm 5
Sept. 27 Sunny
Sunny
 25° /15° 0 mm 5
Sept. 28 Patchy rain possible
Patchy rain possible
 20° /14° 0.3 mm 5
Sept. 29 Patchy rain possible
Patchy rain possible
 22° /16° 0.2 mm 5
Sept. 30 Overcast
Overcast
 23° /14° 0 mm 6
Next
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.
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Buffalo in September - FAQ

What are the expected maximum and minimum temperatures in Buffalo during September?
Enjoy moderate daytime temperatures of up to 24° 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 29.2 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 💧

UV exposure in Buffalo during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

Quick links

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Location coordinates Where is Buffalo?

Get accurate weather forecasts for Buffalo, located at latitude 42.886 and longitude -78.878. Stay updated with localized weather information tailored for Buffalo.

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