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7 Days
14 Days
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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
San Sebastián, CB
Content continues below
May
Average Temperature
High
15°
Feels 15
Low
6°
Feels 5
Average Precipitation
12 Days
Rain amount
66.9mm
Snow amount
0.1cm
Content continues below
Daily Historical Averages
May 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
33°
23
25°
24
28°
25
32°
26
32°
27
27°
28
30°
29
26°
30
30°
31
20°
Forecast
Friday, May 22, 2026
Day
33°
Feels 33
Wind
10 km/h S
Gust
15 km/h
Humidity
26%
P.O.P
20%
Night
14°
Feels 14
Wind
8 km/h S
Gust
12 km/h
Humidity
90%
P.O.P
30%
Historical Averages
May 22
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.