Measurements:
°C
°F
CURRENT WEATHER
04:54
San Sebastian
52°F
N 9 mph
Feels like: 48°F
Precip: 0%
World Resorts Spain San Sebastian Weather

7 Day Weather Forecast

05.10
sun
DAY
70°F
NE 9 mph
precip
100%
NIGHT
50°F
N 6 mph
precip
0%
05.11
mon
DAY
68°F
E 9 mph
precip
100%
NIGHT
48°F
NE 3 mph
precip
0%
05.12
tue
DAY
64°F
S 6 mph
precip
70%
NIGHT
54°F
SE 7 mph
precip
100%
05.13
wed
DAY
58°F
SE 11 mph
precip
100%
NIGHT
52°F
E 9 mph
precip
100%
05.14
thu
DAY
52°F
E 13 mph
precip
100%
NIGHT
46°F
SE 9 mph
precip
100%
05.15
fri
DAY
52°F
SE 10 mph
precip
100%
NIGHT
48°F
E 9 mph
precip
100%
05.16
sat
DAY
54°F
E 8 mph
precip
100%
NIGHT
50°F
E 10 mph
precip
100%

San Sebastian Sea Water Temperature in May, °F

Select Year: 2025 2024 2023

The average sea surface temperature in May 2025 for San Sebastian was 16.3°F. The maximum and minimum values were 14.9°F and 18.1°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 51.6 °F
February 54.0 °F
December 55.1 °F
The most rainy months:
November 9 days
January 8 days
February 7 days
The most windy months:
February 9 mph
November 8 mph
January 8 mph
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