Current sea water temperature:
+75.4°F
| Minimum sea water temperature in June: | 76.3°F |
| Maximum sea water temperature in June: | 57.6°F |
| Average sea water temperature in June: | 66.9°F |
| more information | |
14 days
forecast
forecast
| San Sebastian |
monthly
weather
weather
| San Sebastian |
Sea water temperature for the last 10 days:
| June 26 | 75.4°F | June 21 | 71.4°F |
| June 25 | 76.1°F | June 20 | 71.2°F |
| June 24 | 76.3°F | June 19 | 70.7°F |
| June 23 | 74.7°F | June 18 | 69.8°F |
| June 22 | 73.2°F | June 17 | 68.5°F |
Monthly sea water temperature, °F
When is the warmest sea in San Sebastian?
Based on the data about daily sea water temperature for the last three years the warmest sea in San Sebastian was noticed in August, July and September.
Monthly Sea Temperatures in San Sebastian, °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.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 73.7°F. The highest and lowest sea temperatures during the month were 75.0°F and 72.3°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 70.2°F. The highest and lowest sea temperatures during the month were 72.0°F and 68.2°F.
current
weather
weather
| San Sebastian |
weather in
June
June
| San Sebastian |
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: 11:59
June 26, friday
1200
82°F
S
4 mph
4 mph
1500
86°F
S
6 mph
6 mph
1800
82°F
S
5 mph
5 mph
2100
73°F
SE
6 mph
6 mph
June 27, saturday
0000
66°F
NE
3 mph
3 mph
0300
64°F
E
4 mph
4 mph
0600
63°F
NE
2 mph
2 mph
0900
73°F
E
1 mph
1 mph
