Average annual temperature is 12.5 °C
Absolute maximum temperature: 36.6 °C
Absolute minimum temperature: -5.0 °C
Number of sunny days: 196 days
Number of rainy days: 169 days
Look at detailed online map of San Millán
* Weather data for San Millán 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) | 11.3 | 15.8 | 19.9 | 25.2 | 26.1 | 31.1 | 30.2 | 36.6 | 27.4 | 28.2 | 17.1 | 13.9 |
| Average daytime temperature (°C) | 8.0 | 10.4 | 13.2 | 19.3 | 20.1 | 23.4 | 26.2 | 28.1 | 21.9 | 19.2 | 13.1 | 7.9 |
| Average temperature (°C) | 4.4 | 5.0 | 8.6 | 12.8 | 14.2 | 17.9 | 19.5 | 20.9 | 16.4 | 14.9 | 9.7 | 4.8 |
| Average night temperature (°C) | 1.2 | 0.5 | 4.6 | 7.0 | 8.8 | 13.2 | 13.2 | 14.7 | 12.0 | 11.1 | 6.8 | 2.3 |
| Absolute minimum temperature (°C) | -5.0 | -3.7 | -4.0 | 1.4 | 4.4 | 9.2 | 9.4 | 10.0 | 7.0 | 4.8 | 2.2 | -2.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 13.0 | 14.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.5 | 10.6 | 11.9 | 13.4 | 14.6 | 15.2 | 14.9 | 13.8 | 12.5 | 11.1 | 9.8 | 9.2 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 5.7 | 9.2 | 7.8 | 10.4 | 12.0 | 12.8 | 13.3 | 12.2 | 10.0 | 6.5 | 4.9 | 4.9 |
| Precipitation (mm) | 176 | 11 | 45 | 23 | 50 | 99 | 11 | 8 | 124 | 240 | 149 | 100 |
| Sunny days | 15 | 20 | 14 | 20 | 16 | 11 | 21 | 27 | 14 | 12 | 12 | 14 |
| Rainy days | 16 | 8 | 17 | 10 | 15 | 19 | 10 | 4 | 16 | 19 | 18 | 17 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit San Millán during the most sunny months:
The largest precipitation sum in San Millán is at