Average annual temperature is 15.5 °C
Absolute maximum temperature: 34.5 °C
Absolute minimum temperature: 0.5 °C
Number of sunny days: 127 days
Number of rainy days: 238 days
Look at detailed online map of Donostia / San Sebastián
* Weather data for Donostia / San Sebastián Spain is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 19.6 | 19.9 | 25.9 | 22.6 | 29.9 | 27.5 | 31.2 | 34.5 | 31.4 | 31.7 | 24.0 | 21.1 |
| Average daytime temperature (°C) | 11.1 | 12.2 | 16.8 | 16.3 | 18.3 | 23.2 | 23.2 | 24.1 | 25.4 | 23.0 | 16.6 | 14.0 |
| Average temperature (°C) | 8.5 | 8.6 | 13.0 | 13.1 | 15.6 | 20.4 | 20.4 | 20.9 | 21.5 | 19.2 | 13.7 | 11.2 |
| Average night temperature (°C) | 6.2 | 5.2 | 9.4 | 10.0 | 12.9 | 17.6 | 17.4 | 17.7 | 17.8 | 15.8 | 11.0 | 8.3 |
| Absolute minimum temperature (°C) | 0.5 | 1.3 | 2.3 | 6.2 | 10.0 | 14.8 | 15.2 | 14.2 | 12.5 | 11.5 | 4.8 | 3.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.4 | 10.5 | 11.9 | 13.4 | 14.7 | 15.3 | 15.0 | 13.9 | 12.5 | 11.0 | 9.7 | 9.0 |
| Daylight minimum duration (h) | 9.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 8.0 |
| Sunshine mean duration (h) | 4.6 | 7.2 | 7.7 | 8.7 | 11.2 | 10.8 | 11.0 | 10.4 | 9.6 | 7.7 | 4.9 | 5.1 |
| Precipitation (mm) | 233 | 55 | 85 | 157 | 130 | 111 | 63 | 232 | 92 | 118 | 293 | 204 |
| Sunny days | 10 | 16 | 10 | 12 | 9 | 7 | 8 | 12 | 15 | 13 | 4 | 11 |
| Rainy days | 21 | 12 | 21 | 18 | 22 | 23 | 23 | 19 | 15 | 18 | 26 | 20 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Donostia / San Sebastián during the most sunny months:
Months with the longest average daylight duration in Donostia / San Sebastián:
The largest precipitation sum in Donostia / San Sebastián is at