World Resorts Spain San Sebastian Weather

San Sebastian Sea Temperature in September

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.

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
Playa de Muro 79.5°F 78.3°F
S'illot 79.4°F 78.5°F
Sa Coma 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

Best time for vacation in San Sebastian

Sunniest months:
August 16 days
September 15 days
October 14 days
Warmest months:
August 76.7 °F
July 74.7 °F
September 73.5 °F
Warmest sea temp:
August 72.6 °F
July 71.3 °F
September 70.3 °F
Coldest months:
January 51.6 °F
February 53.5 °F
December 54.7 °F
Rainiest months:
November 9 days
January 8 days
February 7 days
Windiest months:
December 8.8 mph
February 8.7 mph
November 8.7 mph

San Sebastian on a weather map

San Sebastian
+45°F
NE 6 mph
Feels like: +41°F
Precip.: 100%
Places in Spain:
Name
°F
+55°F
+48°F
+57°F
+61°F
+59°F
+45°F
+45°F
+45°F
+52°F
+52°F
+64°F
+55°F
+64°F
24 Hours Forecast
San Sebastian
Local time: 05:50
December 05, friday
0600
45°F
NE
6 mph
0900
46°F
N
7 mph
1200
50°F
N
8 mph
1500
50°F
N
8 mph
1800
50°F
N
9 mph
2100
50°F
N
9 mph
December 06, saturday
0000
50°F
N
9 mph
0300
52°F
N
9 mph
Units of measurement: °C / °F