Donostia / San Sebastián, Spain Climate by Month
Donostia / San Sebastián, Basque Country, Spain
Warm summers and mild winters, with rain spread through the year.
Warm summers and mild winters, with rain spread through the year: that's Donostia / San Sebastián's climate in short. Afternoon highs range from 55°F (13°C) in January to 77°F (25°C) in August, and January nights average 42°F (6°C). About 49 in (1243 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 77°F(25°C)
- Average high, August
- Coldest nights
- 42°F(6°C)
- Average low, January
- Rain per year
- 49 in(1243 mm)
- No clear rainy season
- Humidity
- 75%
- Sunniest: June
Best and worst months in Donostia / San Sebastián
Best for weatherThe most comfortable weather comes in June, July and September, with highs around 75°F (24°C) and about 2.8 in (70 mm) of rain a month.
Least pleasantJanuary and November are the least pleasant; January is the coldest, with highs of only 55°F (13°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in July.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Donostia / San Sebastián weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 55°F(13°C) | 42°F(6°C) | 5.1 in(129 mm) | 77% | 1.4 |
| FebFebruary | 56°F(13°C) | 42°F(6°C) | 3.9 in(100 mm) | 75% | 2.2 |
| MarMarch | 60°F(16°C) | 46°F(8°C) | 3.7 in(94 mm) | 72% | 3.4 |
| AprApril | 63°F(17°C) | 49°F(9°C) | 4.3 in(110 mm) | 72% | 4.5 |
| MayMay | 69°F(20°C) | 54°F(12°C) | 3.7 in(93 mm) | 76% | 5.4 |
| JunJuneBest | 73°F(23°C) | 59°F(15°C) | 2.8 in(71 mm) | 77% | 5.8 |
| JulJulyBest | 76°F(25°C) | 63°F(17°C) | 2.3 in(58 mm) | 77% | 5.7 |
| AugAugust | 77°F(25°C) | 63°F(17°C) | 3.0 in(75 mm) | 79% | 5.3 |
| SepSeptemberBest | 74°F(24°C) | 59°F(15°C) | 3.2 in(82 mm) | 76% | 4.0 |
| OctOctober | 69°F(21°C) | 54°F(12°C) | 5.0 in(126 mm) | 75% | 2.6 |
| NovNovember | 61°F(16°C) | 48°F(9°C) | 7.0 in(179 mm) | 77% | 1.6 |
| DecDecember | 56°F(14°C) | 44°F(7°C) | 5.0 in(126 mm) | 72% | 1.2 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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