Measurements:
°C
°F
CURRENT WEATHER
01:17
San Sebastian
48°F
N 8 mph
Feels like: 46°F
Precip: 0%
World Resorts Spain San Sebastian Weather

14 Day Weather Forecast

12.18
thu
DAY
60°F
N 15 mph
precip
0%
NIGHT
52°F
N 9 mph
precip
100%
12.19
fri
DAY
52°F
NE 3 mph
precip
100%
NIGHT
48°F
E 7 mph
precip
100%
12.20
sat
DAY
54°F
NW 4 mph
precip
0%
NIGHT
46°F
N 10 mph
precip
0%
12.21
sun
DAY
48°F
NW 8 mph
precip
100%
NIGHT
40°F
N 9 mph
precip
0%
12.22
mon
DAY
48°F
N 7 mph
precip
0%
NIGHT
40°F
N 5 mph
precip
53%
12.23
tue
DAY
50°F
SE 11 mph
precip
100%
NIGHT
46°F
E 6 mph
precip
100%
12.24
wed
DAY
48°F
E 4 mph
precip
81%
NIGHT
46°F
SE 3 mph
precip
100%
12.25
thu
DAY
46°F
W 2 mph
precip
100%
NIGHT
46°F
S 7 mph
precip
100%
12.26
fri
DAY
42°F
NW 9 mph
precip
100%
NIGHT
34°F
W 5 mph
precip
100%
12.27
sat
DAY
36°F
SW 4 mph
precip
24%
NIGHT
38°F
W 4 mph
precip
100%
12.28
sun
DAY
36°F
S 7 mph
precip
100%
NIGHT
26°F
W 4 mph
precip
0%
12.29
mon
DAY
38°F
NE 5 mph
precip
0%
NIGHT
30°F
W 4 mph
precip
0%
12.30
tue
DAY
38°F
W 2 mph
precip
0%
NIGHT
28°F
N 3 mph
precip
0%

San Sebastian Sea Water Temperature in December, °F

Select Year: 2025 2024 2023

The average sea surface temperature in December 2025 for San Sebastian was 60.0°F. The maximum and minimum values were 59.0°F and 61.0°F respectively.

San Sebastian on the Weather Map

Best Time to Visit San Sebastian
The most sunny months:
August 16 days
September 15 days
October 14 days
The most warm months:
August 79.7 °F
July 77.5 °F
September 76.1 °F
Warmest sea temperature:
August 75.2 °F
July 73.6 °F
September 72.6 °F
The most cold months:
January 51.8 °F
February 53.8 °F
December 55.2 °F
The most rainy months:
November 9 days
January 8 days
February 7 days
The most windy months:
December 9 mph
February 8 mph
November 8 mph
more details
24 Hours Weather Forecast
San Sebastian
Local time: 01:17
18 dec, thursday
0300 50°F
N
9 mph
0600 48°F
N
12 mph
0900 52°F
N
13 mph
1200 60°F
N
15 mph
1500 60°F
N
15 mph
1800 54°F
N
15 mph
2100 52°F
N
11 mph
19 dec, friday
0000 52°F
N
9 mph