Year-round weather and climate in Donostia / San Sebastián, Spain
Average temperatures in Donostia / San Sebastián run from an average low of 7°C45°F in January up to an average high of 25°C77°F in August. February is the driest month at 12 rainy days; March the wettest at 18. Here is the annual climate data, so you know what you are packing for.
Good to know
- Population
- 185K
- Currency
- EUR
- Language
- Spanish
- Time zone
- Madrid
Best time to visit
The most pleasant weather falls in July, August, and September, offering a perfect balance of comfortable temperatures and clear skies.
Rain character
Tropical Downpours: Expect intense bursts of rain during wetter months. Pack quick-drying footwear and a compact umbrella.
Day-to-night swing
Evening Chill: Temperatures drop by a noticeable 8°C14°F when the sun goes down. A light sweater or jacket is usually all you need for evening plans.
Seasonality Profile
Temperate Year-Round: A relatively mild climate year-round, avoiding both extreme temperature swings and dramatic dry/wet seasons.
Evening vibe
Cozy Indoor Culture: Evenings are generally crisp, damp, or sweltering. Nightlife centers around indoor venues.
Sightseeing stamina
All-Day Strolling: Weather is generally forgiving for long walking days. Comfortable sneakers are your most important packing item.
Average temperatures, sunshine, and rainfall
Average monthly weather in Donostia / San Sebastián, based on recent historical data. Essential insights on temperature swings, expected rainfall, and daily sunshine.
Bars span the average daily low to high. Feb is typically driest at 12 days (118mm); Mar the wettest at 18 days (143mm).
| Month | Average high | Average low | Sunshine hours | Rainy days | Total rainfall |
|---|---|---|---|---|---|
| Jan | 13°C / 56°F | 7°C / 44°F | 5h | 16 | 177mm |
| Feb | 15°C / 58°F | 7°C / 44°F | 7h | 12 | 118mm |
| Mar | 16°C / 61°F | 9°C / 47°F | 8h | 18 | 143mm |
| Apr | 18°C / 64°F | 10°C / 50°F | 9h | 15 | 128mm |
| May | 19°C / 66°F | 12°C / 53°F | 11h | 18 | 134mm |
| Jun | 23°C / 74°F | 16°C / 62°F | 10h | 16 | 90mm |
| Jul | 24°C / 75°F | 17°C / 63°F | 11h | 14 | 72mm |
| Aug | 25°C / 77°F | 18°C / 64°F | 10h | 14 | 140mm |
| Sep | 23°C / 74°F | 15°C / 60°F | 9h | 14 | 128mm |
| Oct | 22°C / 72°F | 14°C / 57°F | 8h | 14 | 149mm |
| Nov | 17°C / 63°F | 11°C / 51°F | 6h | 15 | 202mm |
| Dec | 14°C / 57°F | 8°C / 46°F | 5h | 16 | 176mm |
Weather data by Open-Meteo.com (opens in a new tab)
Frequently Asked Questions
When is the sunniest time of year to visit Donostia / San Sebastián?
The most sunshine in Donostia / San Sebastián comes around May, averaging 11 hours a month. If you're heading there then, pack your sunglasses and sunscreen.
What clothes should I pack for Donostia / San Sebastián?
Your packing list depends entirely on when you travel. Temperatures in Donostia / San Sebastián swing from an average low of 7°C45°F in January up to 25°C77°F in August. The Packola app builds a tailored packing list for you based on the live weather forecast for your exact travel dates.
Do I need to pack an umbrella for Donostia / San Sebastián?
Donostia / San Sebastián gets rain on about 182 days out of the year. The wettest month is March. If you're traveling during the rainy season, you'll definitely want to pack an umbrella and a light rain jacket.
Pack smarter.
Averages get you close, but the week you travel is what matters. Get the live forecast, a smart packing list, and discover the best local spots and activities in Donostia / San Sebastián with Packola.
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