San Sebastian Weather, When to Go and Climate Information
(Donostia - San Sebastian, Gipuzkoa, Basque Country, Spain)
Offering a moderate climate year-round, the mild weather in San Sebastian is extremely inviting. Tourists choose to visit the San Sebastian throughout the year, although the high season tends to fall around the summer months, when visitors arrive to enjoy the sunniest, warmest weather.
San Sebastian's climate is also often describe as 'maritime' or 'oceanic', meaning that during the hottest weather, the climate can feel humid, when cool breezes are welcomed. Most summer days in San Sebastian are almost perfect, when temperatures are neither too hot nor too cold.
Spring
Rainy weather tends to be more frequent during the springtime in San Sebastian, although sunny days are still in good supply.
The weather and climate in San Sebastian remains mild, with a mixture of clear and overcast skies. Average temperatures between February and April range from 14°C / 57°F to 18°C / 64°F.
Summer
Without doubt the best time of the year to visit the San Sebastian area, the summer weather and climate is at its most appealing from June to September. For those sun lovers, July and August are the hottest months, when temperatures can rise to 35°C / 95°F and the beaches become perfect for sunbathing, swimming and water sports, with warm water temperatures hovering around 20°C / 68°F.
Autumn / Fall
Featuring occasional showers, mixed with sunny weather and overcast days, the autumn months in San Sebastian, from September to November, average around 20°C / 68°F. Evenings begin to feel noticeable colder as winter approaches.
Winter
Additional clothing is required during the winter months in San Sebastian, although the weather and climate still remains fairly mild. Rain showers are most common between December and January. Daytime winter temperatures average around 8°C / 46°F, while water temperatures hover around 10°C / 50°F, making swimming possible on sunny days.
San Sebastian Weather and Climate Chart (Averages)
| |
Maximum |
Minimum |
January |
11°C / 52°F |
3°C / 37°F |
February |
14°C / 57°F |
4°C / 39°F |
March |
18°C / 64°F |
5°C / 41°F |
April |
19°C / 66°F |
7°C / 45°F |
May |
24°C / 75°F |
11°C / 52°F |
June |
28°C / 82°F |
15°C / 59°F |
July |
31°C / 88°F |
17°C / 63°F |
August |
31°C / 88°F |
18°C / 64°F |
September |
26°C / 79°F |
13°C / 55°F |
October |
21°C / 70°F |
10°C / 50°F |
November |
14°C / 57°F |
5°C / 41°F |
December |
10°C / 50°F |
2°C / 36°F |
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