Regional Municipality of Niagara (Brantford)
September
Weather in Regional Municipality of Niagara for September 2026
Your guide to Regional Municipality of Niagara weather in September - trends and predictions
Until now, September 2026 in Regional Municipality of Niagara is slightly cooler than the historical average by 1 °C.
The forecast for the next days in Regional Municipality of Niagara predicts a temperature of 17.1 °C, which is cooler than the historical average.
In general, the average temperature in Regional Municipality of Niagara at the beginning of September is 25.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 21.3 °C by the end of September.
Regional Municipality of Niagara experiences moderate rainfall in September, with an average of 9 rainy days and a total precipitation of 102 mm.
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Temperatures
Rain 🌧️
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21
Dry days
9
Rainy days
0
Snow days
24°/12°
Temperatures
18 km/h
Avg max wind
74 %
Avg humidity
Regional Municipality of Niagara Weather September
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Temperatures trend during September in Regional Municipality of Niagara
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September weather in Regional Municipality of Niagara day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Sunny | 27° /12° | 0.2 mm | 7 | |
| 2 Sept. |  Mist | 26° /12° | 9.6 mm | 4 | |
| 3 Sept. |  Overcast | 28° /12° | 0.8 mm | 6 | |
| 4 Sept. | Sunny | 27° /14° | 6.7 mm | 7 | |
| 5 Sept. | Sunny | 27° /13° | 0 mm | 7 | |
| 6 Sept. |  Thundery outbreaks possible | 25° /14° | 3 mm | 6 | |
| 7 Sept. |  Light rain shower | 21° /11° | 1.7 mm | 5 | |
| 8 Sept. | Fog | 22° /9° | 0 mm | 5 | |
| 9 Sept. | Overcast | 25° /11° | 2.1 mm | 4 | |
| 10 Sept. | Overcast | 24° /12° | 0 mm | 5 | |
| 11 Sept. | Overcast | 25° /12° | 0.1 mm | 6 | |
| 12 Sept. |  Moderate or heavy rain shower | 26° /11° | 2.9 mm | 6 | |
| 13 Sept. | Overcast | 25° /12° | 0.1 mm | 5 | |
| 14 Sept. | Sunny | 24° /9° | 0 mm | 6 | |
| 15 Sept. | Overcast | 25° /11° | 0.2 mm | 5 | |
| 16 Sept. | Mist | 25° /11° | 0.2 mm | 5 | |
| 17 Sept. | Mist | 24° /13° | 0.1 mm | 4 | |
| 18 Sept. | Fog | 24° /10° | 0 mm | 5 | |
| 19 Sept. | Mist | 20° /10° | 0.1 mm | 4 | |
| 20 Sept. | Mist | 23° /9° | 0.1 mm | 4 | |
| 21 Sept. | Overcast | 22° /11° | 2.4 mm | 4 | |
| 22 Sept. | Mist | 22° /12° | 11.2 mm | 5 | |
| 23 Sept. | Mist | 22° /12° | 20.7 mm | 5 | |
| 24 Sept. |  Partly cloudy | 20° /12° | 8 mm | 5 | |
| 25 Sept. | Mist | 23° /12° | 19.1 mm | 5 | |
| 26 Sept. | Fog | 22° /11° | 0 mm | 4 | |
| 27 Sept. | Overcast | 22° /11° | 0 mm | 4.9 | |
| 28 Sept. | Overcast | 21° /12° | 0.2 mm | 1.5 | |
| 29 Sept. |  Cloudy | 24° /15° | 0 mm | 3.6 | |
| 30 Sept. | Overcast | 17° /14° | 4.8 mm | 2.3 | |
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Important Notice
Our weather forecast for Regional Municipality of Niagara 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 Regional Municipality of Niagara forecast closer to your planned date for the most up-to-date weather information.
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Regional Municipality of Niagara in September - FAQ
What are the expected maximum and minimum temperatures in Regional Municipality of Niagara during September?
Enjoy moderate daytime temperatures of up to 24° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Regional Municipality of Niagara during September?
Significant rainfall exceeding 102 mm is expected in Regional Municipality of Niagara during September, occurring over more than 9 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Regional Municipality of Niagara during September?
The average wind speed in Regional Municipality of Niagara during September is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Regional Municipality of Niagara
Explore the daily rainfall trends and prepare for Regional Municipality of Niagaras September weather 💧
Typically, Regional Municipality of Niagara has 9 rainy days in September with a total of 102 mm of rainfall.
UV exposure in Regional Municipality of Niagara during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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