21.12
sun
sun
Day
48°F
SE 11 mph
Precip.
100%
100%
Night
39°F
NE 7 mph
Precip.
100%
100%
22.12
mon
mon
Day
45°F
N 9 mph
Precip.
87%
87%
Night
39°F
NW 5 mph
Precip.
100%
100%
23.12
tue
tue
Day
45°F
N 3 mph
Precip.
0%
0%
Night
50°F
SE 5 mph
Precip.
100%
100%
24.12
wed
wed
Day
48°F
SE 8 mph
Precip.
100%
100%
Night
46°F
SE 3 mph
Precip.
100%
100%
25.12
thu
thu
Day
41°F
S 6 mph
Precip.
100%
100%
Night
37°F
SE 4 mph
Precip.
100%
100%
26.12
fri
fri
Day
39°F
NW 2 mph
Precip.
100%
100%
Night
30°F
NW 6 mph
Precip.
0%
0%
27.12
sat
sat
Day
43°F
NW 2 mph
Precip.
0%
0%
Night
32°F
N 3 mph
Precip.
0%
0%
sea water
temperature
temperature
| San Sebastian |
monthly
weather
weather
| San Sebastian |
current
weather
weather
| San Sebastian |
14 days
forecast
forecast
| San Sebastian |
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 58.9°F. The highest and lowest sea temperatures during the month were 59.9°F and 58.1°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 55.8°F. The highest and lowest sea temperatures during the month were 56.7°F and 54.7°F.
Air temperature in San Sebastian, °F
Precipitation total in San Sebastian, in.
* Charts above show average data for the last 3 years.
Best time for vacation in San Sebastian
San Sebastian on a weather map
Places in Spain:
Name
°F
24 Hours Forecast
San Sebastian
Local time: 23:43
December 22, monday
0000
39°F
NE
7 mph
7 mph
0300
39°F
NE
7 mph
7 mph
0600
39°F
N
8 mph
8 mph
0900
39°F
N
10 mph
10 mph
1200
45°F
N
9 mph
9 mph
1500
45°F
N
10 mph
10 mph
1800
43°F
N
9 mph
9 mph
2100
41°F
N
6 mph
6 mph
