05.04
sun
sun
Day

61°F
S 4 mph
Precip.
0%
0%
Night

50°F
NW 2 mph
Precip.
0%
0%
06.04
mon
mon
Day

70°F
N 8 mph
Precip.
0%
0%
Night

59°F
N 10 mph
Precip.
0%
0%
07.04
tue
tue
Day

68°F
N 11 mph
Precip.
0%
0%
Night

50°F
SE 7 mph
Precip.
100%
100%
08.04
wed
wed
Day

50°F
SE 9 mph
Precip.
100%
100%
Night

50°F
E 17 mph
Precip.
100%
100%
09.04
thu
thu
Day

63°F
S 4 mph
Precip.
0%
0%
Night

50°F
SE 14 mph
Precip.
100%
100%
10.04
fri
fri
Day

48°F
SE 9 mph
Precip.
100%
100%
Night

46°F
SE 8 mph
Precip.
100%
100%
11.04
sat
sat
Day

48°F
SE 20 mph
Precip.
100%
100%
Night

43°F
SE 9 mph
Precip.
100%
100%
12.04
sun
sun
Day

46°F
SE 11 mph
Precip.
100%
100%
Night

45°F
SE 7 mph
Precip.
100%
100%
13.04
mon
mon
Day

48°F
E 6 mph
Precip.
100%
100%
Night

45°F
NW 6 mph
Precip.
0%
0%
14.04
tue
tue
Day

48°F
E 6 mph
Precip.
100%
100%
Night

39°F
N 5 mph
Precip.
0%
0%
15.04
wed
wed
Day

57°F
W 3 mph
Precip.
0%
0%
Night

48°F
NE 3 mph
Precip.
0%
0%
16.04
thu
thu
Day

55°F
N 2 mph
Precip.
47%
47%
Night

54°F
E 6 mph
Precip.
100%
100%
17.04
fri
fri
Day

55°F
SE 5 mph
Precip.
100%
100%
Night

48°F
N 2 mph
Precip.
0%
0%
18.04
sat
sat
Day

61°F
S 4 mph
Precip.
0%
0%
Night

57°F
SE 4 mph
Precip.
71%
71%
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:
2025
2024
2023
The average sea water temperature in April of 2025 was 57.2°F. The highest and lowest sea temperatures during the month were 58.5°F and 55.6°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: 17:41
April 05, sunday
1800

61°F
SW
6 mph
6 mph
2100

50°F
SW
2 mph
2 mph
April 06, monday
0000

50°F
NW
2 mph
2 mph
0300

52°F
NW
2 mph
2 mph
0600

54°F
NW
5 mph
5 mph
0900

55°F
N
7 mph
7 mph
1200

70°F
N
8 mph
8 mph
1500

77°F
NW
9 mph
9 mph

























