Average annual temperature is 16.5 °C
Absolute maximum temperature: 39.5 °C
Absolute minimum temperature: 0.5 °C
Number of sunny days: 201 days
Number of rainy days: 162 days
Number of snow days: 2 days
Look at detailed online map of Castellterçol
* Weather data for Castellterçol 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) | 16.3 | 20.6 | 24.7 | 27.1 | 25.8 | 32.2 | 39.5 | 37.9 | 31.4 | 30.4 | 22.9 | 18.8 |
| Average daytime temperature (°C) | 11.4 | 13.8 | 19.2 | 22.0 | 21.8 | 26.6 | 30.6 | 31.3 | 27.2 | 23.9 | 17.2 | 14.5 |
| Average temperature (°C) | 7.4 | 9.0 | 13.0 | 15.4 | 16.8 | 22.0 | 25.0 | 25.4 | 21.9 | 19.0 | 12.8 | 10.0 |
| Average night temperature (°C) | 4.1 | 5.0 | 8.5 | 10.2 | 12.6 | 17.9 | 20.4 | 20.7 | 17.8 | 15.4 | 9.2 | 5.8 |
| Absolute minimum temperature (°C) | 0.5 | 1.0 | 0.6 | 6.6 | 8.1 | 13.5 | 17.4 | 15.1 | 12.4 | 9.4 | 4.3 | 1.7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 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 | 13.3 | 14.5 | 15.2 | 14.9 | 13.8 | 12.5 | 11.1 | 9.9 | 9.2 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.4 | 8.0 | 9.8 | 11.2 | 10.9 | 11.8 | 12.8 | 11.8 | 10.3 | 8.9 | 7.5 | 7.0 |
| Precipitation (mm) | 8 | 60 | 3 | 40 | 152 | 118 | 44 | 72 | 61 | 46 | 21 | 10 |
| Sunny days | 22 | 16 | 22 | 15 | 7 | 9 | 13 | 19 | 16 | 18 | 18 | 26 |
| Rainy days | 9 | 10 | 9 | 15 | 24 | 21 | 18 | 12 | 14 | 13 | 12 | 5 |
| Snow days | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Castellterçol during the most sunny months:
The largest precipitation sum in Castellterçol is at