Niagara Falls
September
Weather in Niagara Falls for September 2026
Your guide to Niagara Falls weather in September - trends and predictions
So far, September 2026 in Niagara Falls shows a warmer trend than usual by 2.2 °C.
Expect cooler weather in the next days in Niagara Falls with the forecast suggesting a temperature of 22 °C, lower than the historical average.
In general, the average temperature in Niagara Falls at the beginning of September is 25.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 21.9 °C by the end of September.
Niagara Falls experiences moderate rainfall in September, with an average of 8 rainy days and a total precipitation of 35.8 mm.
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Temperatures
Rain 🌧️
More
22
Dry days
8
Rainy days
0
Snow days
23°/14°
Temperatures
16 km/h
Avg max wind
72 %
Avg humidity
Niagara Falls Weather September
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Temperatures trend during September in Niagara Falls
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September weather in Niagara Falls day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Mist | 27° /15° | 0.2 mm | 6 | |
| 2 Sept. | Mist | 25° /15° | 3.4 mm | 5 | |
| 3 Sept. |  Cloudy | 27° /15° | 0.4 mm | 5 | |
| 4 Sept. |  Sunny | 26° /16° | 1.5 mm | 6 | |
| 5 Sept. |  Partly cloudy | 27° /15° | 0 mm | 7 | |
| 6 Sept. |  Thundery outbreaks possible | 26° /16° | 0.4 mm | 6 | |
| 7 Sept. |  Light rain shower | 22° /13° | 4 mm | 5 | |
| 8 Sept. | Fog | 23° /11° | 0 mm | 4 | |
| 9 Sept. |  Overcast | 23° /14° | 3.3 mm | 4 | |
| 10 Sept. | Overcast | 23° /15° | 1.5 mm | 5 | |
| 11 Sept. | Sunny | 26° /12° | 0 mm | 6.1 | |
| 12 Sept. | Sunny | 27° /15° | 0.3 mm | 5.7 | |
| 13 Sept. | Patchy rain possible | 25° /18° | 4.8 mm | 5.6 | |
| 14 Sept. | Overcast | 19° /13° | 0 mm | 5.7 | |
| 15 Sept. | Overcast | 21° /15° | 0.4 mm | 5 | |
| 16 Sept. | Light rain shower | 27° /18° | 2.2 mm | 7 | |
| 17 Sept. | Light rain shower | 18° /15° | 5.4 mm | 4 | |
| 18 Sept. | Patchy rain possible | 17° /13° | 0.1 mm | 5 | |
| 19 Sept. | Sunny | 20° /12° | 0 mm | 5 | |
| 20 Sept. | Sunny | 22° /14° | 0 mm | 6 | |
| 21 Sept. | Sunny | 24° /16° | 0 mm | 6 | |
| 22 Sept. | Overcast | 21° /12° | 0.3 mm | 5 | |
| 23 Sept. | Overcast | 18° /12° | 0 mm | 5 | |
| 24 Sept. | Sunny | 23° /15° | 0 mm | 6 | |
| 25 Sept. | Cloudy | 23° /16° | 14.4 mm | 5 | |
| 26 Sept. | Fog | 22° /14° | 0 mm | 5 | |
| 27 Sept. | Fog | 21° /13° | 0 mm | 5 | |
| 28 Sept. | Patchy rain possible | 20° /13° | 1.4 mm | 5 | |
| 29 Sept. | Fog | 22° /13° | 0 mm | 5 | |
| 30 Sept. | Fog | 22° /13° | 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.
Change Month
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 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 Niagara Falls during September?
In September, Niagara Falls can expect light to moderate rainfall, totaling 35.8 mm across approximately 8 days. Occasional showers are possible, and planning ahead for them could be helpful.
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 💧
Typically, Niagara Falls has 8 rainy days in September with a total of 35.8 mm of rainfall.
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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