29.12
mon
mon
Day
54°F
NE 2 mph
Precip.
0%
0%
Night
43°F
NE 4 mph
Precip.
73%
73%
30.12
tue
tue
Day
52°F
SE 7 mph
Precip.
100%
100%
Night
43°F
S 4 mph
Precip.
0%
0%
31.12
wed
wed
Day
46°F
S 3 mph
Precip.
0%
0%
Night
36°F
N 5 mph
Precip.
0%
0%
01.01
thu
thu
Day
48°F
N 10 mph
Precip.
0%
0%
Night
48°F
N 9 mph
Precip.
100%
100%
02.01
fri
fri
Day
50°F
N 10 mph
Precip.
0%
0%
Night
57°F
N 11 mph
Precip.
0%
0%
03.01
sat
sat
Day
57°F
NE 9 mph
Precip.
100%
100%
Night
43°F
SW 7 mph
Precip.
100%
100%
04.01
sun
sun
Day
37°F
NE 7 mph
Precip.
100%
100%
Night
32°F
SW 8 mph
Precip.
100%
100%
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 58.7°F. The highest and lowest sea temperatures during the month were 59.9°F and 57.6°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: 15:48
December 29, monday
1800
45°F
E
1 mph
1 mph
2100
43°F
NE
3 mph
3 mph
December 30, tuesday
0000
43°F
NE
4 mph
4 mph
0300
43°F
NE
6 mph
6 mph
0600
45°F
E
5 mph
5 mph
0900
48°F
SE
7 mph
7 mph
1200
52°F
SE
7 mph
7 mph
1500
50°F
S
9 mph
9 mph
