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Monthly Historical Averages
Lake Cowichan, BC
Your official Fall Forecast is here!
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September
Average Temperature
High
20°
Feels 20
Low
9°
Feels 8
Average Precipitation
12 Days
Rain amount
74.4mm
Snow amount
0cm
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Daily Historical Averages
September 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
22°
11
18°
12
20°
13
18°
14
18°
15
22°
16
21°
17
22°
18
20°
19
20°
20
19°
21
19°
22
19°
23
19°
24
19°
25
26
27
28
29
30
Forecast
Thursday, September 10, 2026
Day
22°
Feels 22
Wind
31 km/h SW
Gust
14 km/h
Humidity
40%
P.O.P
20%
Night
10°
Feels 10
Wind
10 km/h E
Gust
6 km/h
Humidity
100%
P.O.P
30%
Historical Averages
Sep 10
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.