27.04
mon
mon
Day
66°F
S 5 mph
Precip.
0%
0%
Night
55°F
NE 5 mph
Precip.
67%
67%
28.04
tue
tue
Day
66°F
S 3 mph
Precip.
67%
67%
Night
57°F
E 3 mph
Precip.
100%
100%
29.04
wed
wed
Day
70°F
NW 6 mph
Precip.
0%
0%
Night
57°F
N 6 mph
Precip.
0%
0%
30.04
thu
thu
Day
64°F
SE 5 mph
Precip.
82%
82%
Night
52°F
NE 2 mph
Precip.
0%
0%
01.05
fri
fri
Day
66°F
SW 4 mph
Precip.
0%
0%
Night
59°F
E 2 mph
Precip.
100%
100%
02.05
sat
sat
Day
61°F
S 4 mph
Precip.
100%
100%
Night
55°F
N 2 mph
Precip.
67%
67%
03.05
sun
sun
Day
64°F
S 4 mph
Precip.
100%
100%
Night
57°F
N 3 mph
Precip.
100%
100%
04.05
mon
mon
Day
72°F
NW 8 mph
Precip.
25%
25%
Night
63°F
N 9 mph
Precip.
0%
0%
05.05
tue
tue
Day
68°F
N 9 mph
Precip.
100%
100%
Night
57°F
N 6 mph
Precip.
100%
100%
06.05
wed
wed
Day
61°F
SE 6 mph
Precip.
100%
100%
Night
52°F
NE 3 mph
Precip.
82%
82%
07.05
thu
thu
Day
63°F
NE 4 mph
Precip.
57%
57%
Night
52°F
NW 2 mph
Precip.
0%
0%
08.05
fri
fri
Day
68°F
SE 4 mph
Precip.
0%
0%
Night
52°F
N 3 mph
Precip.
0%
0%
09.05
sat
sat
Day
68°F
S 4 mph
Precip.
0%
0%
Night
55°F
NE 4 mph
Precip.
26%
26%
10.05
sun
sun
Day
61°F
SE 8 mph
Precip.
100%
100%
Night
57°F
SW 3 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 April, °F
Show year:
2026
2025
2024
The average sea water temperature in April of 2026 was 58.1°F. The highest and lowest sea temperatures during the month were 61.7°F and 55.4°F.
Sea water temperature in May, °F
Show year:
2025
2024
2023
The average sea water temperature in May of 2025 was 61.4°F. The highest and lowest sea temperatures during the month were 64.6°F and 58.8°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: 06:59
April 27, monday
0900
59°F
E
1 mph
1 mph
1200
66°F
S
5 mph
5 mph
1500
66°F
S
6 mph
6 mph
1800
64°F
S
4 mph
4 mph
2100
57°F
SE
2 mph
2 mph
April 28, tuesday
0000
55°F
NE
5 mph
5 mph
0300
55°F
E
2 mph
2 mph
0600
55°F
NE
2 mph
2 mph
