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7 Days
14 Days
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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Cape Town, WC
Content continues below
September
Average Temperature
High
18°
Feels 17
Low
12°
Feels 10
Average Precipitation
8 Days
Rain amount
44.7mm
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
18°
16
16°
17
17°
18
19°
19
20°
20
19°
21
22°
22
22°
23
18°
24
18°
25
20°
26
20°
27
20°
28
23°
29
24°
30
Forecast
Tuesday, September 15, 2026
Day
18°
Feels 16
Wind
48 km/h NW
Gust
72 km/h
Humidity
52%
P.O.P
90%
Rain
1-3 mm
Night
13°
Feels 10
Wind
36 km/h N
Gust
54 km/h
Humidity
95%
P.O.P
100%
Rain
15-20 mm
Historical Averages
Sep 15
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.