Lethbridge
September
Weather in Lethbridge for September 2025
Your guide to Lethbridge weather in September - trends and predictions
In general, the average temperature in Lethbridge at the beginning of September is 26.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 20.7 °C by the end of September.
Lethbridge experiences moderate rainfall in September, with an average of 6 rainy days and a total precipitation of 66.5 mm.
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Temperatures
Rain 🌧️
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24
Dry days
6
Rainy days
0
Snow days
23°/9°
Temperatures
24 km/h
Avg max wind
51 %
Avg humidity
Lethbridge in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  28° | 2  32° | 3  27° | 4 18° | 5  25° | 6 29° | 7 28° |
| 8  27° | 9 27° | 10 23° | 11 24° | 12 22° | 13 22° | 14 22° |
| 15 23° | 16 26° | 17 25° | 18 21° | 19 20° | 20  16° | 21 18° |
| 22 19° | 23 22° | 24 24° | 25 27° | 26 21° | 27 20° | 28 20° |
| 29 19° | 30  14° |
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Temperatures trend during September in Lethbridge
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. | Mist | 28° /10° | 0 mm | 6 | |
| 2 Sept. | Sunny | 32° /14° | 0 mm | 8 | |
| 3 Sept. | Overcast | 27° /14° | 0 mm | 6 | |
| 4 Sept. | Overcast | 18° /12° | 0 mm | 5 | |
| 5 Sept. | Cloudy | 25° /10° | 0 mm | 6 | |
| 6 Sept. | Cloudy | 29° /11° | 0 mm | 7 | |
| 7 Sept. | Sunny | 28° /12° | 0 mm | 8 | |
| 8 Sept. | Thundery outbreaks possible | 27° /13° | 0.1 mm | 6 | |
| 9 Sept. | Overcast | 27° /13° | 0 mm | 6 | |
| 10 Sept. | Fog | 23° /8° | 0 mm | 6 | |
| 11 Sept. | Cloudy | 24° /9° | 0.1 mm | 6 | |
| 12 Sept. | Thundery outbreaks possible | 22° /11° | 8.7 mm | 5 | |
| 13 Sept. | Thundery outbreaks possible | 22° /11° | 3.3 mm | 5 | |
| 14 Sept. | Overcast | 22° /11° | 0 mm | 6 | |
| 15 Sept. | Mist | 23° /6° | 0 mm | 6 | |
| 16 Sept. | Sunny | 26° /8° | 0 mm | 7 | |
| 17 Sept. | Overcast | 25° /11° | 2 mm | 6 | |
| 18 Sept. | Overcast | 21° /12° | 38 mm | 5 | |
| 19 Sept. | Overcast | 20° /9° | 0 mm | 5 | |
| 20 Sept. | Patchy rain possible | 16° /3° | 0 mm | 4 | |
| 21 Sept. | Patchy rain possible | 18° /2° | 0 mm | 4 | |
| 22 Sept. | Patchy rain possible | 19° /8° | 0.1 mm | 4 | |
| 23 Sept. | Mist | 22° /8° | 0 mm | 6 | |
| 24 Sept. | Cloudy | 24° /8° | 0 mm | 6 | |
| 25 Sept. | Overcast | 27° /8° | 0 mm | 7 | |
| 26 Sept. | Overcast | 21° /11° | 0 mm | 6 | |
| 27 Sept. | Thundery outbreaks possible | 20° /7° | 0 mm | 5 | |
| 28 Sept. | Sunny | 20° /5° | 0 mm | 5 | |
| 29 Sept. | Patchy rain possible | 19° /4° | 1.7 mm | 5 | |
| 30 Sept. | Moderate rain | 14° /5° | 12.6 mm | 4 | |
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Important Notice
Our weather forecast for Lethbridge 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 Lethbridge forecast closer to your planned date for the most up-to-date weather information.
Lethbridge in September - FAQ
What are the expected maximum and minimum temperatures in Lethbridge during September?
Enjoy moderate daytime temperatures of up to 23° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Lethbridge during September?
Moderate rainfall is anticipated in Lethbridge during September, with a total of 66.5 mm spread over approximately 6 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Lethbridge during September?
The average wind speed in Lethbridge during September is 24 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Lethbridge
Explore the daily rainfall trends and prepare for Lethbridges September weather 💧
UV exposure in Lethbridge during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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