Average sea water temperature in September:
+70.3°F
| Minimum sea water temperature in September: | 74.3°F |
| Maximum sea water temperature in September: | 66.6°F |
Daily 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.
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Monthly sea water temperature in San Sebastian, °F
Which Spain resorts have warmest sea in September?
| Place name | September 2025 | September 2024 |
|---|---|---|
| Palma de Majorka | 80.1°F | 78.5°F |
| Palma | 80.1°F | 78.5°F |
| Palmanova | 80.1°F | 78.3°F |
| Magaluf | 80.1°F | 78.3°F |
| Santa Ponsa | 80.0°F | 78.1°F |
| Paguera | 80.0°F | 78.1°F |
| Cala Mayor | 79.9°F | 78.4°F |
| La Manga | 79.8°F | 79.1°F |
| Palma de Mallorca | 79.8°F | 78.5°F |
| Murcia | 79.8°F | 79.1°F |
| Ibiza | 79.6°F | 77.7°F |
| Cala Dor | 79.6°F | 78.3°F |
| Alcudia | 79.5°F | 78.3°F |
| Sa Coma | 79.4°F | 78.5°F |
| S'illot | 79.4°F | 78.5°F |
| Alicante | 79.4°F | 78.7°F |
| San Pedro del Pinatar | 79.4°F | 78.6°F |
| Can Picafort | 79.3°F | 78.4°F |
| L'Albir | 79.2°F | 78.0°F |
| Altea | 79.2°F | 78.0°F |
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: 17:38
December 18, thursday
1800
55°F
N
14 mph
14 mph
2100
55°F
N
14 mph
14 mph
December 19, friday
0000
52°F
N
9 mph
9 mph
0300
50°F
N
8 mph
8 mph
0600
50°F
N
7 mph
7 mph
0900
50°F
N
6 mph
6 mph
1200
54°F
NE
3 mph
3 mph
1500
52°F
NE
4 mph
4 mph
