Niagara Falls
September
Weather in Niagara Falls for September 2025
Your guide to Niagara Falls weather in September - trends and predictions
In general, the average temperature in Niagara Falls at the beginning of September is 26 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 21.6 °F by the end of September.
With an average of 5 rainy days, Niagara Falls experiences minimal rainfall in September.
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25
Dry days
5
Rainy days
0
Snow days
24°/13°
Temperatures
16 km/h
Avg max wind
70 %
Avg humidity
Niagara Falls in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  24° | 2 22° | 3  26° | 4  28° | 5  30° | 6  30° | 7  22° |
| 8 22° | 9  22° | 10 21° | 11 25° | 12 26° | 13 22° | 14 24° |
| 15 24° | 16 24° | 17 23° | 18 22° | 19 22° | 20 24° | 21 27° |
| 22 25° | 23 21° | 24 22° | 25 23° | 26 22° | 27 20° | 28 20° |
| 29 22° | 30 22° |
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Temperatures trend during September in Niagara Falls
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 | Mist | 24° /14° | 0.4 mm | 5 | |
| Sept. 2 | Mist | 22° /14° | 0.1 mm | 5 | |
| Sept. 3 | Cloudy | 26° /15° | 0 mm | 6 | |
| Sept. 4 | Partly cloudy | 28° /17° | 0 mm | 7 | |
| Sept. 5 | Sunny | 30° /17° | 0 mm | 8 | |
| Sept. 6 | Thundery outbreaks possible | 30° /19° | 1 mm | 7 | |
| Sept. 7 | Light rain shower | 22° /15° | 6 mm | 5 | |
| Sept. 8 | Fog | 22° /12° | 0.1 mm | 5 | |
| Sept. 9 | Overcast | 22° /13° | 0.5 mm | 5 | |
| Sept. 10 | Light rain shower | 21° /15° | 3.7 mm | 5 | |
| Sept. 11 | Cloudy | 25° /15° | 0 mm | 6 | |
| Sept. 12 | Mist | 26° /16° | 0 mm | 6 | |
| Sept. 13 | Overcast | 22° /14° | 0 mm | 6 | |
| Sept. 14 | Partly cloudy | 24° /13° | 0 mm | 7 | |
| Sept. 15 | Mist | 24° /13° | 0 mm | 6 | |
| Sept. 16 | Mist | 24° /13° | 0 mm | 6 | |
| Sept. 17 | Mist | 23° /13° | 0 mm | 5 | |
| Sept. 18 | Patchy rain possible | 22° /13° | 0.3 mm | 5 | |
| Sept. 19 | Fog | 22° /12° | 0 mm | 5 | |
| Sept. 20 | Mist | 24° /12° | 0 mm | 6 | |
| Sept. 21 | Mist | 27° /15° | 2.6 mm | 6 | |
| Sept. 22 | Partly cloudy | 25° /13° | 0 mm | 6 | |
| Sept. 23 | Overcast | 21° /14° | 3.5 mm | 5 | |
| Sept. 24 | Mist | 22° /12° | 1.2 mm | 5 | |
| Sept. 25 | Cloudy | 23° /15° | 0 mm | 5 | |
| Sept. 26 | Mist | 22° /14° | 0 mm | 5 | |
| Sept. 27 | Overcast | 20° /12° | 0 mm | 5 | |
| Sept. 28 | Patchy rain possible | 20° /12° | 1.8 mm | 5 | |
| Sept. 29 | Patchy rain possible | 22° /16° | 0 mm | 5 | |
| Sept. 30 | Mist | 22° /14° | 0 mm | 5 | |
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Important Notice
Our weather forecast for Niagara Falls 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 Niagara Falls forecast closer to your planned date for the most up-to-date weather information.
Niagara Falls in September - FAQ
What are the expected maximum and minimum temperatures in Niagara Falls during September?
Enjoy moderate daytime temperatures of up to 24° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Niagara Falls during September?
Expect minimal rainfall in Niagara Falls during September, with a total of 19.5 mm over approximately 5 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Niagara Falls during September?
The average wind speed in Niagara Falls during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Niagara Falls
Explore the daily rainfall trends and prepare for Niagara Fallss September weather 💧
UV exposure in Niagara Falls during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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