City in Basque Country, Spain
San Sebastián weather by month and the best time to visit
When to go to San Sebastián
June–September is warmest and best for the beach, but crowded and pricey. Spring and autumn are mild and rainy; winters are cool and wet.
San Sebastián weather by month
Average daily high, rainfall and conditions.
- Jan12°126 mm
- Feb12°95 mm
- Mar14°90 mm
- Apr16°86 mm
- May18°82 mm
- Jun21°68 mm
- Jul23°48 mm
- Aug24°51 mm
- Sep22°64 mm
- Oct20°94 mm
- Nov15°149 mm
- Dec12°117 mm
Monthly averages
| Month | High | Low | Rain | Humidity | Conditions |
|---|---|---|---|---|---|
| January | 12°C53°F | 8°C46°F | 126 mm | 83% | Cool |
| February | 12°C53°F | 8°C46°F | 95 mm | 81% | Cool |
| March | 14°C57°F | 9°C48°F | 90 mm | 80% | Cool |
| April | 16°C60°F | 11°C51°F | 86 mm | 80% | Cool |
| May | 18°C64°F | 13°C56°F | 82 mm | 81% | Pleasant |
| June | 21°C71°F | 16°C62°F | 68 mm | 80% | Pleasant |
| July | 23°C74°F | 18°C65°F | 48 mm | 79% | Pleasant |
| August | 24°C75°F | 19°C66°F | 51 mm | 77% | Pleasant |
| September | 22°C72°F | 17°C63°F | 64 mm | 76% | Pleasant |
| October | 20°C67°F | 15°C59°F | 94 mm | 77% | Pleasant |
| November | 15°C59°F | 11°C52°F | 149 mm | 81% | Cool |
| December | 12°C54°F | 9°C48°F | 117 mm | 82% | Cool |
Best months across Spain
| Place | Best months | Warmest month |
|---|---|---|
| Barcelona | May–Jun, Sep–Oct | Jul (32°C) |
| Madrid | Apr–Jun, Sep–Oct | Jul (34°C) |
| Seville | Mar–May, Oct–Nov | Jul (38°C) |
| Valencia | Apr–Jun, Oct | Jul (35°C) |
| Málaga | Apr–Jun, Sep–Oct | Aug (28°C) |
| Mallorca | May–Jun, Sep–Oct | Aug (28°C) |
| Ibiza | May–Jun, Sep–Oct | Aug (28°C) |
| Tenerife | Jan–May, Oct–Nov | Sep (25°C) |
| Gran Canaria | Oct–Apr | Sep (24°C) |
| Granada | Apr–Jun, Sep–Oct | Jul (32°C) |
| Costa del Sol | Apr–Jun, Sep–Oct | Aug (28°C) |
| Palma | Apr–Jun, Sep–Oct | Aug (28°C) |
| Las Palmas | Oct–Apr | Sep (24°C) |
| Lanzarote | Oct–May | Sep (24°C) |
| San Sebastián | Jun–Sep | Aug (24°C) |
| Bilbao | May–Jun, Sep–Oct | Aug (24°C) |
| Alicante | Mar–May, Oct–Nov | Jul (34°C) |
| Fuerteventura | Oct–Apr | Sep (24°C) |
| Córdoba | Mar–May, Oct–Nov | Jul (38°C) |
| Marbella | Apr–Jun, Sep–Oct | Jul (30°C) |
| Menorca | May–Jun, Sep–Oct | Aug (26°C) |
| Cádiz | Apr–Jun, Sep–Oct | Aug (29°C) |
| Toledo | Apr–Jun, Sep–Oct | Jul (36°C) |
| Santiago de Compostela | May–Sep | Aug (24°C) |
| Benidorm | Apr–Jun, Sep–Oct | Aug (28°C) |
| Costa Blanca | Apr–Jun, Oct–Nov | Jul (34°C) |
| Costa Brava | May–Jun, Sep–Oct | Aug (25°C) |
| Maspalomas | Nov–Apr | Sep (25°C) |
| Sitges | May–Jun, Sep–Oct | Aug (27°C) |
| Salamanca | Apr–Jun, Sep–Oct | Jul (31°C) |
Quick answers
What is the best month to visit San Sebastián?
Jun–Sep. June–September is warmest and best for the beach, but crowded and pricey. Spring and autumn are mild and rainy; winters are cool and wet.
When is the rainy season in San Sebastián?
Rain peaks in November with about 149 mm. No month averages 150 mm or more.
What is the hottest month in San Sebastián?
August, with average highs of 24°C (75°F).
How cold does San Sebastián get?
The coolest nights are in February, averaging 8°C (46°F).
More about San Sebastián
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Sources
Climate averages are modelled from NASA POWER (MERRA-2) for 2001–2020 at about 50 km resolution, so coasts and valleys can differ a little. Temperatures are adjusted by 0.7°C for the city's elevation. Compiled and reviewed by SoloSquare. How we compile and score this. Spotted something out of date? Tell us.