18.07
sat
sat
Day
73°F
S 4 mph
Precip.
15%
15%
Night
64°F
E 2 mph
Precip.
23%
23%
19.07
sun
sun
Day
77°F
SE 4 mph
Precip.
10%
10%
Night
64°F
NE 5 mph
Precip.
9%
9%
20.07
mon
mon
Day
77°F
SE 6 mph
Precip.
3%
3%
Night
61°F
NE 6 mph
Precip.
5%
5%
21.07
tue
tue
Day
77°F
S 6 mph
Precip.
1%
1%
Night
61°F
NE 5 mph
Precip.
6%
6%
22.07
wed
wed
Day
77°F
S 5 mph
Precip.
2%
2%
Night
61°F
NE 6 mph
Precip.
7%
7%
23.07
thu
thu
Day
75°F
SE 7 mph
Precip.
3%
3%
Night
61°F
NE 4 mph
Precip.
8%
8%
24.07
fri
fri
Day
77°F
S 5 mph
Precip.
2%
2%
Night
59°F
NE 4 mph
Precip.
6%
6%
sea water
temperature
temperature
| San Sebastian |
monthly
weather
weather
| San Sebastian |
current
weather
weather
| San Sebastian |
14 days
forecast
forecast
| San Sebastian |
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 75.9°F. The highest and lowest sea temperatures during the month were 77.2°F and 74.5°F.
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 73.8°F. The highest and lowest sea temperatures during the month were 75.9°F and 72.1°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: 01:45
July 18, saturday
0300
64°F
SE
0 mph
0 mph
0600
63°F
NE
0 mph
0 mph
0900
68°F
E
0 mph
0 mph
1200
73°F
S
4 mph
4 mph
1500
77°F
S
7 mph
7 mph
1800
75°F
SE
8 mph
8 mph
2100
70°F
S
3 mph
3 mph
July 19, sunday
0000
64°F
E
2 mph
2 mph
