Average annual temperature is 13.9 °C
Absolute maximum temperature: 39.1 °C
Absolute minimum temperature: -4.3 °C
Number of sunny days: 203 days
Number of rainy days: 162 days
Look at detailed online map of Castelãos
* Weather data for Castelãos Portugal is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 13.4 | 17.1 | 21.7 | 26.5 | 27.7 | 32.6 | 32.0 | 39.1 | 29.0 | 29.9 | 18.6 | 15.1 |
| Average daytime temperature (°C) | 9.7 | 11.9 | 14.7 | 20.8 | 22.1 | 25.1 | 28.4 | 30.2 | 23.6 | 20.7 | 14.6 | 9.3 |
| Average temperature (°C) | 5.8 | 6.4 | 9.9 | 13.9 | 15.8 | 19.3 | 21.2 | 22.5 | 17.7 | 16.3 | 11.2 | 6.1 |
| Average night temperature (°C) | 2.1 | 1.7 | 5.4 | 7.6 | 9.9 | 14.1 | 14.2 | 15.8 | 12.9 | 12.5 | 8.3 | 3.1 |
| Absolute minimum temperature (°C) | -4.3 | -3.9 | -4.0 | 1.4 | 5.1 | 10.7 | 10.8 | 11.6 | 7.3 | 6.1 | 2.7 | -2.9 |
| 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 | 13.3 | 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 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 5.7 | 9.1 | 7.8 | 10.4 | 12.1 | 12.7 | 13.3 | 12.3 | 10.0 | 6.4 | 4.9 | 5.0 |
| Precipitation (mm) | 161 | 10 | 44 | 24 | 48 | 79 | 10 | 0 | 134 | 233 | 148 | 109 |
| Sunny days | 16 | 20 | 13 | 19 | 16 | 14 | 26 | 30 | 13 | 12 | 9 | 15 |
| Rainy days | 15 | 8 | 18 | 11 | 15 | 16 | 5 | 1 | 17 | 19 | 21 | 16 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Castelãos during the most sunny months:
The largest precipitation sum in Castelãos is at