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Canada weather

Weather in Lethbridge for September 2025

Your guide to Lethbridge weather in September - trends and predictions

    Temperatures

  • 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.

    • Rain 🌧️

  • Lethbridge experiences moderate rainfall in September, with an average of 6 rainy days and a total precipitation of 66.5 mm.

    • More

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Average dry days
24
Dry days
Average rainy days
6
Rainy days
Average snowy days
0
Snow days
Average temperatures
23°/9°
Temperatures
Average wind speed
24 km/h
Avg max wind
Average humidity
51 %
Avg humidity

Lethbridge Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Mist
28°
2
Sunny
32°
3
Overcast
27°
4
Overcast
18°
5
Cloudy
25°
6
Cloudy
29°
7
Sunny
28°
8
Thundery outbreaks possible
27°
9
Overcast
27°
10
Fog
23°
11
Cloudy
24°
12
Thundery outbreaks possible
22°
13
Thundery outbreaks possible
22°
14
Overcast
22°
15
Mist
23°
16
Sunny
26°
17
Overcast
25°
18
Overcast
21°
19
Overcast
20°
20
Patchy rain possible
16°
21
Patchy rain possible
18°
22
Patchy rain possible
19°
23
Mist
22°
24
Cloudy
24°
25
Overcast
27°
26
Overcast
21°
27
Thundery outbreaks possible
20°
28
Sunny
20°
29
Patchy rain possible
19°
30
Moderate rain
14°

Temperatures trend during September in Lethbridge

See the weather trend as well as the moving average line

September weather in Lethbridge day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Mist
Mist
 28° /10° 0 mm 6
2 Sept. Sunny
Sunny
 32° /14° 0 mm 8
3 Sept. Overcast
Overcast
 27° /14° 0 mm 6
4 Sept. Overcast
Overcast
 18° /12° 0 mm 5
5 Sept. Cloudy
Cloudy
 25° /10° 0 mm 6
6 Sept. Cloudy
Cloudy
 29° /11° 0 mm 7
7 Sept. Sunny
Sunny
 28° /12° 0 mm 8
8 Sept. Thundery outbreaks possible
Thundery outbreaks possible
 27° /13° 0.1 mm 6
9 Sept. Overcast
Overcast
 27° /13° 0 mm 6
10 Sept. Fog
Fog
 23° /8° 0 mm 6
11 Sept. Cloudy
Cloudy
 24° /9° 0.1 mm 6
12 Sept. Thundery outbreaks possible
Thundery outbreaks possible
 22° /11° 8.7 mm 5
13 Sept. Thundery outbreaks possible
Thundery outbreaks possible
 22° /11° 3.3 mm 5
14 Sept. Overcast
Overcast
 22° /11° 0 mm 6
15 Sept. Mist
Mist
 23° /6° 0 mm 6
16 Sept. Sunny
Sunny
 26° /8° 0 mm 7
17 Sept. Overcast
Overcast
 25° /11° 2 mm 6
18 Sept. Overcast
Overcast
 21° /12° 38 mm 5
19 Sept. Overcast
Overcast
 20° /9° 0 mm 5
20 Sept. Patchy rain possible
Patchy rain possible
 16° /3° 0 mm 4
21 Sept. Patchy rain possible
Patchy rain possible
 18° /2° 0 mm 4
22 Sept. Patchy rain possible
Patchy rain possible
 19° /8° 0.1 mm 4
23 Sept. Mist
Mist
 22° /8° 0 mm 6
24 Sept. Cloudy
Cloudy
 24° /8° 0 mm 6
25 Sept. Overcast
Overcast
 27° /8° 0 mm 7
26 Sept. Overcast
Overcast
 21° /11° 0 mm 6
27 Sept. Thundery outbreaks possible
Thundery outbreaks possible
 20° /7° 0 mm 5
28 Sept. Sunny
Sunny
 20° /5° 0 mm 5
29 Sept. Patchy rain possible
Patchy rain possible
 19° /4° 1.7 mm 5
30 Sept. Moderate rain
Moderate rain
 14° /5° 12.6 mm 4
Next
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.
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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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Location coordinates Where is Lethbridge?

Get accurate weather forecasts for Lethbridge, located at latitude 49.7 and longitude -112.819. Stay updated with localized weather information tailored for Lethbridge.

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