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Weather in Squamish-Lillooet Regional District for September 2025

Your guide to Squamish-Lillooet Regional District weather in September - trends and predictions
  • In general, the average temperature in Squamish-Lillooet Regional District at the beginning of September is 25.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 10.3 °C by the end of September.

  • The climate of Squamish-Lillooet Regional District in September is notably wet, with an average of 13 rainy days.

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Average dry days
17
Dry days
Average rainy days
13
Rainy days
Average snowy days
0
Snow days
Average temperatures
17°/0°
Temperatures
Average wind speed
8 km/h
Avg max wind
Average humidity
71 %
Avg humidity

Squamish-Lillooet Regional District in September average weather

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Temperatures trend during September in Squamish-Lillooet Regional District

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. Sunny
Sunny
27° /5° 0 mm 7
2 Sept. Partly cloudy
Partly cloudy
24° /5° 0.4 mm 6
3 Sept. Patchy rain possible
Patchy rain possible
17° /2° 0.2 mm 4
4 Sept. Sunny
Sunny
25° /2° 0 mm 7
5 Sept. Sunny
Sunny
28° /5° 0 mm 7
6 Sept. Sunny
Sunny
27° /6° 0 mm 7
7 Sept. Sunny
Sunny
28° /6° 0 mm 7
8 Sept. Sunny
Sunny
25° /5° 0 mm 7
9 Sept. Fog
Fog
14° /0° 0.6 mm 3
10 Sept. Patchy rain possible
Patchy rain possible
17° /0° 0.1 mm 4
11 Sept. Patchy rain possible
Patchy rain possible
16° /0° 0.3 mm 4
12 Sept. Light rain
Light rain
17° /0° 0.9 mm 5
13 Sept. Mist
Mist
14° /-1° 3.6 mm 4
14 Sept. Mist
Mist
17° /-1° 3.2 mm 4
15 Sept. Partly cloudy
Partly cloudy
19° /-1° 0.3 mm 5
16 Sept. Cloudy
Cloudy
21° /-1° 0 mm 6
17 Sept. Mist
Mist
14° /1° 3.5 mm 4
18 Sept. Patchy rain possible
Patchy rain possible
15° /-1° 1 mm 4
19 Sept. Light rain
Light rain
10° /-1° 1.5 mm 3
20 Sept. Patchy rain possible
Patchy rain possible
13° /-2° 0.3 mm 3
21 Sept. Partly cloudy
Partly cloudy
17° /-3° 0 mm 5
22 Sept. Sunny
Sunny
15° /3° 7.6 mm 5
23 Sept. Light rain shower
Light rain shower
13° /1° 3.7 mm 3
24 Sept. Patchy rain possible
Patchy rain possible
14° /-1° 3.1 mm 4
25 Sept. Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
12° /-1° 111.7 mm 3
26 Sept. Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
8° /-4° 46.2 mm 2
27 Sept. Light rain shower
Light rain shower
9° /-4° 21.5 mm 3
28 Sept. Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
9° /-4° 4.6 mm 3
29 Sept. Thundery outbreaks possible
Thundery outbreaks possible
9° /-5° 0.1 mm 3
30 Sept. Partly cloudy
Partly cloudy
11° /-6° 0 mm 3
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Important Notice
Our weather forecast for Squamish-Lillooet Regional District 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 Squamish-Lillooet Regional District forecast closer to your planned date for the most up-to-date weather information.

Squamish-Lillooet Regional District in September - FAQ

What are the expected maximum and minimum temperatures in Squamish-Lillooet Regional District during September?
During September, expect a variety of temperatures with highs around 17° and lows near 0°, suitable for diverse activities and preferences.
How much rainfall should be expected in Squamish-Lillooet Regional District during September?
Significant rainfall exceeding 183.7 mm is expected in Squamish-Lillooet Regional District during September, occurring over more than 13 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Squamish-Lillooet Regional District during September?
The average wind speed in Squamish-Lillooet Regional District during September is 8 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Squamish-Lillooet Regional District

Explore the daily rainfall trends and prepare for Squamish-Lillooet Regional Districts September weather 💧

UV exposure in Squamish-Lillooet Regional District during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Location coordinates Where is Squamish-Lillooet Regional District?

Get accurate weather forecasts for Squamish-Lillooet Regional District, located at latitude 50.118 and longitude -122.954. Stay updated with localized weather information tailored for Squamish-Lillooet Regional District.

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