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.
With an average of 2 rainy days, Lethbridge experiences minimal rainfall in September, ensuring that most days remain pleasantly dry.
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28
Dry days
2
Rainy days
0
Snow days
23°/8°
Temperatures
24 km/h
Avg max wind
50 %
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 8°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Lethbridge during September?
In September, Lethbridge can expect light to moderate rainfall, totaling 27 mm across approximately 2 days. Occasional showers are possible, and planning ahead for them could be helpful.
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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