Average annual temperature is 13.5 °C
Absolute maximum temperature: 38.4 °C
Absolute minimum temperature: -4.9 °C
Number of sunny days: 234 days
Number of rainy days: 131 days
Look at detailed online map of Castelo Bom
* Weather data for Castelo Bom 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) | 12.7 | 16.2 | 21.8 | 28.1 | 26.9 | 33.3 | 34.1 | 38.4 | 31.0 | 31.2 | 19.2 | 14.1 |
| Average daytime temperature (°C) | 8.9 | 10.9 | 15.2 | 20.9 | 21.3 | 25.2 | 29.5 | 31.0 | 23.7 | 20.9 | 14.0 | 9.5 |
| Average temperature (°C) | 4.5 | 4.6 | 9.6 | 13.9 | 15.3 | 19.4 | 22.1 | 23.4 | 17.8 | 15.9 | 9.8 | 5.2 |
| Average night temperature (°C) | 0.6 | -0.3 | 4.6 | 7.1 | 9.3 | 13.7 | 14.7 | 15.8 | 12.6 | 11.3 | 6.4 | 1.8 |
| Absolute minimum temperature (°C) | -4.2 | -4.0 | -4.0 | 1.4 | 6.2 | 9.8 | 11.5 | 11.0 | 7.9 | 5.3 | 0.5 | -4.9 |
| 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) | 9.6 | 10.7 | 11.9 | 13.3 | 14.4 | 15.0 | 14.7 | 13.8 | 12.5 | 11.1 | 9.9 | 9.3 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 6.4 | 8.5 | 8.6 | 11.0 | 11.1 | 12.4 | 13.2 | 12.6 | 9.6 | 6.7 | 6.0 | 5.9 |
| Precipitation (mm) | 71 | 13 | 62 | 16 | 66 | 59 | 0 | 0 | 82 | 137 | 88 | 31 |
| Sunny days | 19 | 19 | 19 | 24 | 18 | 14 | 30 | 30 | 17 | 12 | 15 | 17 |
| Rainy days | 12 | 9 | 12 | 6 | 13 | 16 | 1 | 1 | 13 | 19 | 15 | 14 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Castelo Bom during the most sunny months:
The largest precipitation sum in Castelo Bom is at