20.12
sat
sat
Day
79°F
N 17 mph
Precip.
0%
0%
Night
68°F
NW 12 mph
Precip.
0%
0%
21.12
sun
sun
Day
82°F
N 9 mph
Precip.
0%
0%
Night
70°F
NW 9 mph
Precip.
0%
0%
22.12
mon
mon
Day
79°F
NE 6 mph
Precip.
0%
0%
Night
70°F
N 10 mph
Precip.
0%
0%
23.12
tue
tue
Day
68°F
E 3 mph
Precip.
76%
76%
Night
66°F
N 7 mph
Precip.
0%
0%
24.12
wed
wed
Day
73°F
N 17 mph
Precip.
0%
0%
Night
64°F
N 12 mph
Precip.
49%
49%
25.12
thu
thu
Day
72°F
N 12 mph
Precip.
0%
0%
Night
66°F
N 14 mph
Precip.
0%
0%
26.12
fri
fri
Day
73°F
N 14 mph
Precip.
0%
0%
Night
66°F
N 12 mph
Precip.
0%
0%
27.12
sat
sat
Day
73°F
N 11 mph
Precip.
0%
0%
Night
66°F
NE 4 mph
Precip.
29%
29%
28.12
sun
sun
Day
75°F
NE 6 mph
Precip.
49%
49%
Night
68°F
N 6 mph
Precip.
0%
0%
29.12
mon
mon
Day
75°F
N 8 mph
Precip.
0%
0%
Night
68°F
N 9 mph
Precip.
0%
0%
30.12
tue
tue
Day
75°F
N 13 mph
Precip.
0%
0%
Night
66°F
N 14 mph
Precip.
0%
0%
31.12
wed
wed
Day
75°F
N 12 mph
Precip.
0%
0%
Night
68°F
N 12 mph
Precip.
0%
0%
01.01
thu
thu
Day
79°F
N 9 mph
Precip.
0%
0%
Night
68°F
N 14 mph
Precip.
0%
0%
02.01
fri
fri
Day
75°F
N 15 mph
Precip.
0%
0%
Night
70°F
N 17 mph
Precip.
76%
76%
sea water
temperature
temperature
| Capetown |
monthly
weather
weather
| Capetown |
current
weather
weather
| Capetown |
7 days
forecast
forecast
| Capetown |
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 56.7°F. The highest and lowest sea temperatures during the month were 58.1°F and 55.2°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 59.1°F. The highest and lowest sea temperatures during the month were 62.1°F and 55.0°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: 12:48
December 20, saturday
1500
75°F
N
21 mph
21 mph
1800
75°F
N
22 mph
22 mph
2100
72°F
NW
17 mph
17 mph
December 21, sunday
0000
68°F
NW
12 mph
12 mph
0300
66°F
NW
9 mph
9 mph
0600
64°F
NW
6 mph
6 mph
0900
73°F
NW
7 mph
7 mph
1200
82°F
N
9 mph
9 mph
