Average monthly temperatures
San Sebastian has a sub tropical climate with hot summers and very mild winters usually with year round sunshine.
For the highest temperatures the best time to visit San Sebastian is between July and September although the sub tropical climate offers sunshine throughout the year and winter months are equally popular with visitors.
The hottest month of the year is August with an average daily maximum of 28 C and an average low of 21 C.
The coolest month of the year is February with an average daily maximum of 20 C and an average low of 14 C.
Sunshine and rainfall
The driest month is June with 0 mm of rainfall and 30 perfect sunny days. The wettest month is February with 13 mm of rain over 2 days.
Best time to be on the beach
You should be able to enjoy the beach with sea temperatures averaging 23 C or above from June to November.
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