Grande Prairie
September
Weather in Grande Prairie for September 2025
Your guide to Grande Prairie weather in September - trends and predictions
In general, the average temperature in Grande Prairie at the beginning of September is 22.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 15.4 °C by the end of September.
With an average of 2 rainy days, Grande Prairie experiences minimal rainfall in September.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
28
Dry days
2
Rainy days
0
Snow days
19°/7°
Temperatures
20 km/h
Avg max wind
58 %
Avg humidity
Grande Prairie in September average weather
Move between months or click on a day
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  28° | 2 25° | 3  20° | 4  18° | 5  22° | 6  23° | 7  24° |
| 8 24° | 9 21° | 10 23° | 11  21° | 12 22° | 13 20° | 14 20° |
| 15 23° | 16 21° | 17 22° | 18 18° | 19 13° | 20 15° | 21 19° |
| 22 21° | 23 21° | 24 20° | 25 19° | 26  17° | 27 17° | 28 13° |
| 29 10° | 30 12° |
You can click on date
Access Grande Prairie weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Temperatures trend during September in Grande Prairie
See the weather trend as well as the moving average line
September weather day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Sunny | 28° /10° | 0 mm | 7 | |
| 2 Sept. | Sunny | 25° /11° | 0 mm | 7 | |
| 3 Sept. | Cloudy | 20° /7° | 0.6 mm | 5 | |
| 4 Sept. | Mist | 18° /5° | 0.1 mm | 5 | |
| 5 Sept. | Light rain | 22° /6° | 1.4 mm | 6 | |
| 6 Sept. | Patchy rain possible | 23° /9° | 0.1 mm | 5 | |
| 7 Sept. | Partly cloudy | 24° /9° | 0 mm | 6 | |
| 8 Sept. | Partly cloudy | 24° /9° | 0 mm | 7 | |
| 9 Sept. | Sunny | 21° /7° | 0 mm | 5 | |
| 10 Sept. | Sunny | 23° /6° | 0 mm | 6 | |
| 11 Sept. | Overcast | 21° /7° | 0.1 mm | 5 | |
| 12 Sept. | Overcast | 22° /8° | 0 mm | 6 | |
| 13 Sept. | Partly cloudy | 20° /7° | 0 mm | 6 | |
| 14 Sept. | Overcast | 20° /5° | 0.2 mm | 5 | |
| 15 Sept. | Cloudy | 23° /7° | 0 mm | 5 | |
| 16 Sept. | Overcast | 21° /9° | 0.2 mm | 5 | |
| 17 Sept. | Partly cloudy | 22° /9° | 0 mm | 6 | |
| 18 Sept. | Partly cloudy | 18° /8° | 0.2 mm | 5 | |
| 19 Sept. | Overcast | 13° /5° | 0 mm | 3 | |
| 20 Sept. | Light rain | 15° /5° | 0.8 mm | 4 | |
| 21 Sept. | Sunny | 19° /3° | 0 mm | 5 | |
| 22 Sept. | Sunny | 21° /7° | 6.4 mm | 5 | |
| 23 Sept. | Overcast | 21° /8° | 0 mm | 5 | |
| 24 Sept. | Patchy rain possible | 20° /8° | 0.3 mm | 5 | |
| 25 Sept. | Overcast | 19° /7° | 0 mm | 4 | |
| 26 Sept. | Thundery outbreaks possible | 17° /6° | 0 mm | 4 | |
| 27 Sept. | Patchy light drizzle | 17° /6° | 0.3 mm | 4 | |
| 28 Sept. | Patchy rain possible | 13° /3° | 0.2 mm | 4 | |
| 29 Sept. | Patchy rain possible | 10° /5° | 0.5 mm | 3 | |
| 30 Sept. | Patchy rain possible | 12° /3° | 0 mm | 4 | |
| Next | |||||
Important Notice
Our weather forecast for Grande Prairie 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 Grande Prairie forecast closer to your planned date for the most up-to-date weather information.
Grande Prairie in September - FAQ
What are the expected maximum and minimum temperatures in Grande Prairie during September?
Enjoy moderate daytime temperatures of up to 19° and cooler nights around 7°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Grande Prairie during September?
Expect minimal rainfall in Grande Prairie during September, with a total of 11.3 mm over approximately 2 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Grande Prairie during September?
The average wind speed in Grande Prairie during September is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Grande Prairie
Explore the daily rainfall trends and prepare for Grande Prairies September weather 💧
UV exposure in Grande Prairie during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Quick links
You are here
Where is Grande Prairie?Get accurate weather forecasts for Grande Prairie, located at latitude 55.167 and longitude -118.803. Stay updated with localized weather information tailored for Grande Prairie.
Found a mistake?
We appreciate your attention to details. Tell us here.