21.12
sun
sun
Day

43°F
NE 6 mph
Precip.
100%
100%
Night

39°F
E 6 mph
Precip.
100%
100%
22.12
mon
mon
Day

46°F
E 10 mph
Precip.
65%
65%
Night

41°F
N 7 mph
Precip.
0%
0%
23.12
tue
tue
Day

45°F
E 6 mph
Precip.
100%
100%
Night

45°F
S 6 mph
Precip.
100%
100%
24.12
wed
wed
Day

50°F
SW 5 mph
Precip.
100%
100%
Night

46°F
S 7 mph
Precip.
100%
100%
25.12
thu
thu
Day

41°F
S 9 mph
Precip.
100%
100%
Night

37°F
W 4 mph
Precip.
69%
69%
26.12
fri
fri
Day

41°F
NE 2 mph
Precip.
75%
75%
Night

39°F
S 6 mph
Precip.
100%
100%
27.12
sat
sat
Day

39°F
NE 2 mph
Precip.
100%
100%
Night

34°F
N 3 mph
Precip.
84%
84%
28.12
sun
sun
Day

43°F
E 3 mph
Precip.
77%
77%
Night

39°F
SE 2 mph
Precip.
100%
100%
29.12
mon
mon
Day

39°F
SW 6 mph
Precip.
80%
80%
Night

28°F
W 4 mph
Precip.
0%
0%
30.12
tue
tue
Day

36°F
SW 4 mph
Precip.
0%
0%
Night

30°F
NW 2 mph
Precip.
0%
0%
31.12
wed
wed
Day

39°F
SW 2 mph
Precip.
0%
0%
Night

28°F
N 4 mph
Precip.
0%
0%
01.01
thu
thu
Day

39°F
W 2 mph
Precip.
0%
0%
Night

28°F
W 6 mph
Precip.
0%
0%
02.01
fri
fri
Day

39°F
W 5 mph
Precip.
0%
0%
Night

28°F
NW 3 mph
Precip.
0%
0%
03.01
sat
sat
Day

39°F
W 3 mph
Precip.
0%
0%
Night

30°F
NW 5 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: 01:25
December 21, sunday
0300

45°F
NE
7 mph
7 mph
0600

45°F
N
7 mph
7 mph
0900

43°F
SE
11 mph
11 mph
1200

43°F
NE
6 mph
6 mph
1500

45°F
NE
6 mph
6 mph
1800

39°F
N
5 mph
5 mph
2100

39°F
NE
6 mph
6 mph
December 22, monday
0000

39°F
E
6 mph
6 mph


























