22.12
mon
mon
Day
46°F
N 5 mph
Precip.
0%
0%
Night
41°F
NE 7 mph
Precip.
100%
100%
23.12
tue
tue
Day
48°F
E 7 mph
Precip.
79%
79%
Night
48°F
SW 6 mph
Precip.
100%
100%
24.12
wed
wed
Day
50°F
S 7 mph
Precip.
100%
100%
Night
43°F
SW 7 mph
Precip.
75%
75%
25.12
thu
thu
Day
39°F
S 4 mph
Precip.
100%
100%
Night
34°F
NW 4 mph
Precip.
0%
0%
26.12
fri
fri
Day
41°F
SW 3 mph
Precip.
61%
61%
Night
39°F
NW 2 mph
Precip.
100%
100%
27.12
sat
sat
Day
50°F
W 2 mph
Precip.
0%
0%
Night
43°F
NW 4 mph
Precip.
0%
0%
28.12
sun
sun
Day
54°F
SW 2 mph
Precip.
0%
0%
Night
41°F
E 2 mph
Precip.
0%
0%
29.12
mon
mon
Day
46°F
NE 5 mph
Precip.
0%
0%
Night
39°F
W 5 mph
Precip.
0%
0%
30.12
tue
tue
Day
45°F
SW 6 mph
Precip.
77%
77%
Night
43°F
SW 7 mph
Precip.
82%
82%
31.12
wed
wed
Day
46°F
SW 5 mph
Precip.
25%
25%
Night
39°F
NW 2 mph
Precip.
0%
0%
01.01
thu
thu
Day
45°F
E 2 mph
Precip.
0%
0%
Night
41°F
NE 6 mph
Precip.
65%
65%
02.01
fri
fri
Day
41°F
W 5 mph
Precip.
100%
100%
Night
39°F
W 3 mph
Precip.
100%
100%
03.01
sat
sat
Day
41°F
SW 4 mph
Precip.
80%
80%
Night
36°F
NE 8 mph
Precip.
100%
100%
04.01
sun
sun
Day
46°F
S 13 mph
Precip.
100%
100%
Night
43°F
SW 7 mph
Precip.
100%
100%
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: 06:18
December 22, monday
0900
37°F
N
7 mph
7 mph
1200
46°F
N
5 mph
5 mph
1500
50°F
E
4 mph
4 mph
1800
43°F
NE
3 mph
3 mph
2100
41°F
N
6 mph
6 mph
December 23, tuesday
0000
41°F
NE
7 mph
7 mph
0300
43°F
NE
7 mph
7 mph
0600
45°F
E
7 mph
7 mph
