Red Deer
September
Weather in Red Deer for September 2025
Your guide to Red Deer weather in September - trends and predictions
In general, the average temperature in Red Deer at the beginning of September is 23.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17.3 °C by the end of September.
Red Deer experiences moderate rainfall in September, with an average of 10 rainy days and a total precipitation of 53.3 mm.
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Temperatures
Rain 🌧️
More
20
Dry days
10
Rainy days
0
Snow days
20°/7°
Temperatures
20 km/h
Avg max wind
62 %
Avg humidity
Red Deer in September average weather
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  25° | 2  30° | 3  23° | 4 14° | 5  22° | 6  24° | |
| 7  26° | 8  26° | 9 22° | 10  20° | 11 22° | 12 18° | 13 20° |
| 14 19° | 15 21° | 16 25° | 17 23° | 18 19° | 19 17° | 20 11° |
| 21 18° | 22 20° | 23 21° | 24 23° | 25 24° | 26 19° | 27 18° |
| 28 15° | 29  11° | 30 11° |
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Temperatures trend during September in Red Deer
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. | Moderate or heavy rain shower | 25° /11° | 3.5 mm | 6 | |
| 2 Sept. | Partly cloudy | 30° /10° | 0.2 mm | 8 | |
| 3 Sept. | Overcast | 23° /10° | 0.2 mm | 6 | |
| 4 Sept. | Overcast | 14° /7° | 0.1 mm | 4 | |
| 5 Sept. | Thundery outbreaks possible | 22° /6° | 0.6 mm | 5 | |
| 6 Sept. | Fog | 24° /9° | 0.1 mm | 5 | |
| 7 Sept. | Light rain shower | 26° /8° | 2.5 mm | 6 | |
| 8 Sept. | Cloudy | 26° /10° | 0 mm | 6 | |
| 9 Sept. | Fog | 22° /9° | 0 mm | 6 | |
| 10 Sept. | Sunny | 20° /7° | 0.2 mm | 6 | |
| 11 Sept. | Overcast | 22° /8° | 1.7 mm | 5 | |
| 12 Sept. | Overcast | 18° /9° | 2.3 mm | 4 | |
| 13 Sept. | Cloudy | 20° /9° | 0.7 mm | 5 | |
| 14 Sept. | Sunny | 19° /7° | 12.6 mm | 5 | |
| 15 Sept. | Sunny | 21° /5° | 0 mm | 6 | |
| 16 Sept. | Sunny | 25° /5° | 0 mm | 7 | |
| 17 Sept. | Overcast | 23° /6° | 0 mm | 6 | |
| 18 Sept. | Cloudy | 19° /8° | 0.8 mm | 5 | |
| 19 Sept. | Overcast | 17° /5° | 0 mm | 4 | |
| 20 Sept. | Light rain shower | 11° /3° | 9.3 mm | 3 | |
| 21 Sept. | Fog | 18° /1° | 0 mm | 5 | |
| 22 Sept. | Partly cloudy | 20° /4° | 0 mm | 5 | |
| 23 Sept. | Partly cloudy | 21° /5° | 0 mm | 6 | |
| 24 Sept. | Patchy rain possible | 23° /7° | 0 mm | 6 | |
| 25 Sept. | Cloudy | 24° /7° | 0 mm | 6 | |
| 26 Sept. | Overcast | 19° /7° | 0 mm | 5 | |
| 27 Sept. | Thundery outbreaks possible | 18° /3° | 1.5 mm | 5 | |
| 28 Sept. | Thundery outbreaks possible | 15° /0° | 5.8 mm | 4 | |
| 29 Sept. | Moderate or heavy rain with thunder | 11° /4° | 9.2 mm | 3 | |
| 30 Sept. | Light rain shower | 11° /3° | 1.7 mm | 3 | |
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Important Notice
Our weather forecast for Red Deer 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 Red Deer forecast closer to your planned date for the most up-to-date weather information.
Red Deer in September - FAQ
What are the expected maximum and minimum temperatures in Red Deer during September?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 7°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Red Deer during September?
Moderate rainfall is anticipated in Red Deer during September, with a total of 53.3 mm spread over approximately 10 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Red Deer during September?
The average wind speed in Red Deer during September is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Red Deer
Explore the daily rainfall trends and prepare for Red Deers September weather 💧
UV exposure in Red Deer during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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