Spain · urban-centre population 230,220
Donostia / San Sebastián
Weather values are area-weighted across the 44 km² urban centre (1 ERA5 cells).
20.8
matching days / year for “Eternal spring” · 2021-2025 recent-weather sample (not a 30-year normal)
Monthly high (p10–p90)
Whiskers span the 10th–90th percentile daily high; the tick marks the monthly average.
- January: average 11°C, p10 5°C, p90 15°C
- February: average 13°C, p10 9°C, p90 16°C
- March: average 14°C, p10 9°C, p90 18°C
- April: average 15°C, p10 10°C, p90 20°C
- May: average 17°C, p10 14°C, p90 22°C
- June: average 21°C, p10 17°C, p90 26°C
- July: average 22°C, p10 19°C, p90 26°C
- August: average 23°C, p10 19°C, p90 27°C
- September: average 21°C, p10 16°C, p90 27°C
- October: average 20°C, p10 16°C, p90 24°C
- November: average 14°C, p10 10°C, p90 19°C
- December: average 12°C, p10 9°C, p90 17°C
Matching days by month · Eternal spring
- January: 0.2 matching days per year
- February: 0.2 matching days per year
- March: 0.8 matching days per year
- April: 1.4 matching days per year
- May: 1.4 matching days per year
- June: 1.8 matching days per year
- July: 2.4 matching days per year
- August: 3.8 matching days per year
- September: 3.0 matching days per year
- October: 3.8 matching days per year
- November: 1.8 matching days per year
- December: 0.2 matching days per year
Presets
- Eternal spring: 20.8 days/yr
- Mild and dry: 34.6 days/yr
- Beach weather: 21.0 days/yr
- Crisp and clear: 16.0 days/yr
- Warm, not sweaty: 49.2 days/yr