25.12
thu
thu
Day
37°F
W 4 mph
Precip.
87%
87%
Night
36°F
NW 3 mph
Precip.
0%
0%
26.12
fri
fri
Day
39°F
SW 4 mph
Precip.
64%
64%
Night
36°F
N 3 mph
Precip.
0%
0%
27.12
sat
sat
Day
50°F
W 3 mph
Precip.
0%
0%
Night
41°F
N 4 mph
Precip.
0%
0%
28.12
sun
sun
Day
52°F
SE 5 mph
Precip.
0%
0%
Night
45°F
SE 6 mph
Precip.
0%
0%
29.12
mon
mon
Day
52°F
N 2 mph
Precip.
0%
0%
Night
39°F
N 6 mph
Precip.
0%
0%
30.12
tue
tue
Day
50°F
E 2 mph
Precip.
0%
0%
Night
41°F
N 3 mph
Precip.
0%
0%
31.12
wed
wed
Day
45°F
E 4 mph
Precip.
40%
40%
Night
45°F
SE 10 mph
Precip.
100%
100%
01.01
thu
thu
Day
37°F
SW 6 mph
Precip.
100%
100%
Night
34°F
NW 4 mph
Precip.
100%
100%
02.01
fri
fri
Day
34°F
N 6 mph
Precip.
100%
100%
Night
25°F
W 6 mph
Precip.
100%
100%
03.01
sat
sat
Day
34°F
NE 2 mph
Precip.
47%
47%
Night
25°F
N 6 mph
Precip.
68%
68%
04.01
sun
sun
Day
39°F
N 6 mph
Precip.
0%
0%
Night
27°F
N 11 mph
Precip.
0%
0%
05.01
mon
mon
Day
37°F
N 9 mph
Precip.
0%
0%
Night
27°F
N 6 mph
Precip.
0%
0%
06.01
tue
tue
Day
39°F
W 3 mph
Precip.
0%
0%
Night
27°F
N 5 mph
Precip.
0%
0%
07.01
wed
wed
Day
39°F
NE 1 mph
Precip.
0%
0%
Night
30°F
N 4 mph
Precip.
0%
0%
sea water
temperature
temperature
| San Sebastian |
monthly
weather
weather
| San Sebastian |
current
weather
weather
| San Sebastian |
7 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 58.8°F. The highest and lowest sea temperatures during the month were 59.9°F and 57.9°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: 16:48
December 25, thursday
1800
37°F
SW
4 mph
4 mph
2100
36°F
NW
4 mph
4 mph
December 26, friday
0000
36°F
NW
3 mph
3 mph
0300
34°F
NW
2 mph
2 mph
0600
36°F
W
3 mph
3 mph
0900
34°F
W
2 mph
2 mph
1200
39°F
SW
4 mph
4 mph
1500
41°F
W
2 mph
2 mph
