21.12
sun
sun
Day

45°F
E 12 mph
Precip.
100%
100%
Night

37°F
N 9 mph
Precip.
0%
0%
22.12
mon
mon
Day

46°F
N 7 mph
Precip.
0%
0%
Night

36°F
N 6 mph
Precip.
0%
0%
23.12
tue
tue
Day

46°F
SE 1 mph
Precip.
0%
0%
Night

45°F
N 3 mph
Precip.
62%
62%
24.12
wed
wed
Day

46°F
N 2 mph
Precip.
63%
63%
Night

45°F
W 4 mph
Precip.
75%
75%
25.12
thu
thu
Day

41°F
S 6 mph
Precip.
100%
100%
Night

37°F
E 2 mph
Precip.
100%
100%
26.12
fri
fri
Day

39°F
W 4 mph
Precip.
0%
0%
Night

30°F
NW 4 mph
Precip.
0%
0%
27.12
sat
sat
Day

43°F
W 3 mph
Precip.
0%
0%
Night

34°F
N 2 mph
Precip.
0%
0%
28.12
sun
sun
Day

43°F
S 6 mph
Precip.
61%
61%
Night

41°F
SW 4 mph
Precip.
0%
0%
29.12
mon
mon
Day

41°F
SW 4 mph
Precip.
73%
73%
Night

41°F
SW 9 mph
Precip.
77%
77%
30.12
tue
tue
Day

45°F
SW 6 mph
Precip.
73%
73%
Night

41°F
SW 6 mph
Precip.
100%
100%
31.12
wed
wed
Day

46°F
SW 7 mph
Precip.
100%
100%
Night

43°F
SW 7 mph
Precip.
74%
74%
01.01
thu
thu
Day

45°F
SW 4 mph
Precip.
25%
25%
Night

36°F
N 4 mph
Precip.
25%
25%
02.01
fri
fri
Day

45°F
SE 2 mph
Precip.
0%
0%
Night

36°F
NW 2 mph
Precip.
0%
0%
03.01
sat
sat
Day

43°F
SW 2 mph
Precip.
0%
0%
Night

34°F
W 2 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 58.9°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: 12:14
December 21, sunday
1500

39°F
NE
8 mph
8 mph
1800

39°F
NE
4 mph
4 mph
2100

37°F
N
7 mph
7 mph
December 22, monday
0000

37°F
N
9 mph
9 mph
0300

37°F
N
7 mph
7 mph
0600

39°F
N
6 mph
6 mph
0900

37°F
N
6 mph
6 mph
1200

46°F
N
7 mph
7 mph




























