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7 Days
14 Days
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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Lake Cowichan, BC
Exceptional El Niño dominates this fall
Content continues below
September
Average Temperature
High
20°
Feels 20
Low
9°
Feels 8
Average Precipitation
12 Days
Rain amount
74.4mm
Snow amount
0cm
Content continues below
Daily Historical Averages
September 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
24°
18
22°
19
21°
20
22°
21
19°
22
17°
23
18°
24
18°
25
18°
26
17°
27
17°
28
16°
29
16°
30
17°
Forecast
Thursday, September 17, 2026
Day
24°
Feels 26
Wind
11 km/h NW
Gust
12 km/h
Humidity
38%
P.O.P
0%
Night
12°
Feels 12
Wind
9 km/h NE
Gust
8 km/h
Humidity
94%
P.O.P
0%
Historical Averages
Sep 17
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.