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Weather in Williams Lake for September 2026

Your guide to Williams Lake weather in September - trends and predictions

    Temperatures

  • In general, the average temperature in Williams Lake at the beginning of September is 28.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 12.9 °C by the end of September.

    • Rain 🌧️

  • With an average of 3 rainy days, Williams Lake experiences minimal rainfall in September.

    • More

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Average dry days
27
Dry days
Average rainy days
3
Rainy days
Average snowy days
0
Snow days
Average temperatures
20°/12°
Temperatures
Average wind speed
11 km/h
Avg max wind
Average humidity
55 %
Avg humidity

Williams Lake Weather September

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

Temperatures trend during September in Williams Lake

See the weather trend as well as the moving average line

September weather in Williams Lake day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Partly cloudy
Partly cloudy
 30° /17° 0 mm 5
2 Sept. Sunny
Sunny
 30° /18° 0 mm 5
3 Sept. Sunny
Sunny
 30° /18° 0 mm 5
4 Sept. Sunny
Sunny
 27° /18° 0 mm 5
5 Sept. Sunny
Sunny
 26° /16° 0 mm 5
6 Sept. Sunny
Sunny
 29° /17° 0 mm 5
7 Sept. Overcast
Overcast
 26° /18° 0 mm 4
8 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 17° /14° 70.1 mm 2
9 Sept. Mist
Mist
 18° /13° 18.9 mm 3
10 Sept. Sunny
Sunny
 23° /13° 0 mm 4
11 Sept. Cloudy
Cloudy
 24° /14° 0 mm 4
12 Sept. Cloudy
Cloudy
 22° /15° 0 mm 4
13 Sept. Overcast
Overcast
 25° /15° 0 mm 4
14 Sept. Light rain
Light rain
 17° /10° 1.5 mm 3
15 Sept. Fog
Fog
 17° /5° 0 mm 3
16 Sept. Partly cloudy
Partly cloudy
 24° /12° 0 mm 4
17 Sept. Partly cloudy
Partly cloudy
 25° /16° 0 mm 3
18 Sept. Sunny
Sunny
 17° /10° 0 mm 3
19 Sept. Overcast
Overcast
 20° /8° 0 mm 3
20 Sept. Overcast
Overcast
 19° /13° 0 mm 2
21 Sept. Sunny
Sunny
 16° /11° 0 mm 3
22 Sept. Partly cloudy
Partly cloudy
 19° /8° 0 mm 3
23 Sept. Overcast
Overcast
 13° /10° 0 mm 1
24 Sept. Overcast
Overcast
 14° /7° 0 mm 2
25 Sept. Overcast
Overcast
 14° /9° 0 mm 2
26 Sept. Overcast
Overcast
 12° /7° 0 mm 1
27 Sept. Overcast
Overcast
 10° /7° 0 mm 0
28 Sept. Overcast
Overcast
 11° /6° 0 mm 0
29 Sept. Overcast
Overcast
 15° /11° 0 mm 1
30 Sept. Partly cloudy
Partly cloudy
 14° /7° 0 mm 2
Next
Important Notice
Our weather forecast for Williams Lake 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 Williams Lake forecast closer to your planned date for the most up-to-date weather information.
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Williams Lake in September - FAQ

What are the expected maximum and minimum temperatures in Williams Lake during September?

Enjoy moderate daytime temperatures of up to 20° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Williams Lake during September?

Moderate rainfall is anticipated in Williams Lake during September, with a total of 90.5 mm spread over approximately 3 days. Considering plans for rainy days is advisable.

What are the typical wind conditions in Williams Lake during September?

The average wind speed in Williams Lake during September is 11 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Williams Lake

Explore the daily rainfall trends and prepare for Williams Lakes September weather 💧
Typically, Williams Lake has 3 rainy days in September with a total of 90.5 mm of rainfall.

UV exposure in Williams Lake during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

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Location coordinates Where is Williams Lake?

Get accurate weather forecasts for Williams Lake, located at latitude 52.142 and longitude -122.145. Stay updated with localized weather information tailored for Williams Lake.

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