Current sea water temperature:
+53.2°F
| Minimum sea water temperature in September: | 63.0°F |
| Maximum sea water temperature in September: | 48.0°F |
| Average sea water temperature in September: | 57.3°F |
| more information | |
14 days
forecast
forecast
| Capetown |
monthly
weather
weather
| Capetown |
Sea water temperature for the last 10 days:
| September 17 | 53.2°F | September 12 | 54.5°F |
| September 16 | 54.0°F | September 11 | 54.7°F |
| September 15 | 54.0°F | September 10 | 54.1°F |
| September 14 | 54.9°F | September 9 | 52.2°F |
| September 13 | 54.7°F | September 8 | 52.2°F |
Monthly sea water temperature, °F
When is the warmest sea in Capetown?
Based on the data about daily sea water temperature for the last three years the warmest sea in Capetown was noticed in February, January and March.
Monthly Sea Temperatures in Capetown, °F
Sea water temperature in February, °F
Show year:
2026
2025
2024
The average sea water temperature in February of 2026 was 60.0°F. The highest and lowest sea temperatures during the month were 66.4°F and 53.2°F.
Sea water temperature in January, °F
Show year:
2026
2025
2024
The average sea water temperature in January of 2026 was 56.9°F. The highest and lowest sea temperatures during the month were 60.8°F and 52.5°F.
Sea water temperature in March, °F
Show year:
2026
2025
2024
The average sea water temperature in March of 2026 was 62.5°F. The highest and lowest sea temperatures during the month were 67.1°F and 58.6°F.
current
weather
weather
| Capetown |
weather in
September
September
| Capetown |
Best time for vacation in Capetown
Capetown on a weather map
Places in South Africa:
Name
°F
24 Hours Forecast
Capetown
Local time: 00:57
September 18, friday
0300
54°F
NW
14 mph
14 mph
0600
52°F
NW
9 mph
9 mph
0900
57°F
NW
12 mph
12 mph
1200
64°F
NW
17 mph
17 mph
1500
68°F
NW
22 mph
22 mph
1800
63°F
NW
17 mph
17 mph
2100
59°F
NW
9 mph
9 mph
September 19, saturday
0000
55°F
NW
6 mph
6 mph
