Winnipeg
September
Weather in Winnipeg for September 2025
Your guide to Winnipeg weather in September - trends and predictions
In general, the average temperature in Winnipeg at the beginning of September is 27.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 24 °C by the end of September.
Winnipeg sees moderate rainfall in September, averaging 8 rainy days.
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22
Dry days
8
Rainy days
0
Snow days
24°/11°
Temperatures
21 km/h
Avg max wind
58 %
Avg humidity
Winnipeg in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  28° | 2  33° | 3  34° | 4  31° | 5  20° | 6  21° | 7 26° |
| 8  28° | 9 28° | 10 26° | 11 21° | 12 26° | 13 26° | 14 27° |
| 15  25° | 16 23° | 17 26° | 18 28° | 19 26° | 20 25° | 21 22° |
| 22 24° | 23 22° | 24  21° | 25 22° | 26 27° | 27 24° | 28 24° |
| 29 27° | 30 23° |
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Temperatures trend during September in Winnipeg
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 |
|---|---|---|---|---|---|
| 1 Sept. | Cloudy | 28° /13° | 0 mm | 7 | |
| 2 Sept. | Sunny | 33° /15° | 0 mm | 8 | |
| 3 Sept. | Partly cloudy | 34° /16° | 0 mm | 8 | |
| 4 Sept. | Heavy rain at times | 31° /18° | 1 mm | 7 | |
| 5 Sept. | Light rain shower | 20° /13° | 1.9 mm | 5 | |
| 6 Sept. | Mist | 21° /8° | 0.3 mm | 6 | |
| 7 Sept. | Mist | 26° /9° | 0 mm | 6 | |
| 8 Sept. | Overcast | 28° /13° | 0 mm | 7 | |
| 9 Sept. | Cloudy | 28° /14° | 0 mm | 7 | |
| 10 Sept. | Mist | 26° /12° | 0 mm | 6 | |
| 11 Sept. | Patchy rain possible | 21° /12° | 1 mm | 5 | |
| 12 Sept. | Sunny | 26° /11° | 0 mm | 7 | |
| 13 Sept. | Overcast | 26° /14° | 0.4 mm | 6 | |
| 14 Sept. | Overcast | 27° /13° | 0.3 mm | 7 | |
| 15 Sept. | Moderate rain at times | 25° /14° | 2.7 mm | 6 | |
| 16 Sept. | Overcast | 23° /14° | 0.5 mm | 5 | |
| 17 Sept. | Mist | 26° /12° | 61.6 mm | 6 | |
| 18 Sept. | Overcast | 28° /16° | 0 mm | 6 | |
| 19 Sept. | Partly cloudy | 26° /16° | 0 mm | 7 | |
| 20 Sept. | Cloudy | 25° /12° | 0 mm | 6 | |
| 21 Sept. | Overcast | 22° /11° | 0 mm | 5 | |
| 22 Sept. | Partly cloudy | 24° /8° | 0.2 mm | 6 | |
| 23 Sept. | Light rain shower | 22° /11° | 0.9 mm | 5 | |
| 24 Sept. | Heavy rain | 21° /13° | 14.7 mm | 5 | |
| 25 Sept. | Patchy rain possible | 22° /12° | 0 mm | 6 | |
| 26 Sept. | Partly cloudy | 27° /13° | 0 mm | 7 | |
| 27 Sept. | Overcast | 24° /12° | 0 mm | 6 | |
| 28 Sept. | Light rain shower | 24° /13° | 11.1 mm | 6 | |
| 29 Sept. | Mist | 27° /8° | 0 mm | 7 | |
| 30 Sept. | Partly cloudy | 23° /11° | 0 mm | 6 | |
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Important Notice
Our weather forecast for Winnipeg 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 Winnipeg forecast closer to your planned date for the most up-to-date weather information.
Winnipeg in September - FAQ
What are the expected maximum and minimum temperatures in Winnipeg during September?
Enjoy moderate daytime temperatures of up to 24° and cooler nights around 11°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Winnipeg during September?
Moderate rainfall is anticipated in Winnipeg during September, with a total of 65.1 mm spread over approximately 8 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Winnipeg during September?
The average wind speed in Winnipeg during September is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Winnipeg
Explore the daily rainfall trends and prepare for Winnipegs September weather 💧
UV exposure in Winnipeg during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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