18.05
mon
mon
Day
66°F
NW 14 mph
Precip.
0%
0%
Night
63°F
NW 19 mph
Precip.
0%
0%
19.05
tue
tue
Day
66°F
NW 12 mph
Precip.
0%
0%
Night
63°F
NW 9 mph
Precip.
0%
0%
20.05
wed
wed
Day
68°F
NW 4 mph
Precip.
0%
0%
Night
63°F
N 3 mph
Precip.
0%
0%
21.05
thu
thu
Day
68°F
E 4 mph
Precip.
0%
0%
Night
63°F
N 4 mph
Precip.
0%
0%
22.05
fri
fri
Day
64°F
E 3 mph
Precip.
82%
82%
Night
61°F
N 2 mph
Precip.
0%
0%
23.05
sat
sat
Day
64°F
SE 2 mph
Precip.
0%
0%
Night
61°F
N 4 mph
Precip.
0%
0%
24.05
sun
sun
Day
66°F
NW 5 mph
Precip.
0%
0%
Night
61°F
N 5 mph
Precip.
0%
0%
25.05
mon
mon
Day
66°F
N 5 mph
Precip.
0%
0%
Night
64°F
NW 6 mph
Precip.
0%
0%
26.05
tue
tue
Day
63°F
SE 12 mph
Precip.
100%
100%
Night
61°F
SE 7 mph
Precip.
100%
100%
27.05
wed
wed
Day
63°F
SE 5 mph
Precip.
100%
100%
Night
59°F
N 6 mph
Precip.
0%
0%
28.05
thu
thu
Day
63°F
N 6 mph
Precip.
0%
0%
Night
59°F
N 6 mph
Precip.
0%
0%
29.05
fri
fri
Day
64°F
NW 3 mph
Precip.
0%
0%
Night
61°F
W 2 mph
Precip.
0%
0%
30.05
sat
sat
Day
70°F
SE 2 mph
Precip.
0%
0%
Night
61°F
NW 4 mph
Precip.
0%
0%
31.05
sun
sun
Day
66°F
N 5 mph
Precip.
0%
0%
Night
61°F
N 6 mph
Precip.
0%
0%
sea water
temperature
temperature
| Capetown |
monthly
weather
weather
| Capetown |
current
weather
weather
| Capetown |
7 days
forecast
forecast
| Capetown |
Sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 58.6°F. The highest and lowest sea temperatures during the month were 60.3°F and 57.4°F.
Sea water temperature in June, °F
Show year:
2025
2024
2023
The average sea water temperature in June of 2025 was 57.6°F. The highest and lowest sea temperatures during the month were 58.6°F and 56.1°F.
Air temperature in Capetown, °F
Precipitation total in Capetown, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Capetown
Capetown on a weather map
Places in South Africa:
Name
°F
24 Hours Forecast
Capetown
Local time: 14:18
May 18, monday
1500
66°F
NW
16 mph
16 mph
1800
64°F
NW
16 mph
16 mph
2100
64°F
NW
17 mph
17 mph
May 19, tuesday
0000
63°F
NW
19 mph
19 mph
0300
63°F
NW
19 mph
19 mph
0600
63°F
NW
19 mph
19 mph
0900
63°F
NW
17 mph
17 mph
1200
66°F
NW
12 mph
12 mph
