Average annual temperature is 20.8 °C
Absolute maximum temperature: 33.5 °C
Absolute minimum temperature: 5.3 °C
Number of sunny days: 117 days
Number of rainy days: 248 days
Look at detailed online map of Castelo
* Weather data for Castelo Brazil is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 31.0 | 30.4 | 30.4 | 28.2 | 26.5 | 25.2 | 24.8 | 29.0 | 33.5 | 30.8 | 32.8 | 32.5 |
| Average daytime temperature (°C) | 27.3 | 25.7 | 27.1 | 24.0 | 22.9 | 20.7 | 21.4 | 23.5 | 26.7 | 26.2 | 26.9 | 28.4 |
| Average temperature (°C) | 22.8 | 21.6 | 22.8 | 19.6 | 18.6 | 16.7 | 17.4 | 19.0 | 21.9 | 21.9 | 22.7 | 24.1 |
| Average night temperature (°C) | 19.4 | 18.6 | 19.8 | 16.4 | 15.5 | 13.9 | 14.5 | 15.5 | 18.2 | 18.6 | 19.3 | 20.8 |
| Absolute minimum temperature (°C) | 15.4 | 11.9 | 15.6 | 10.4 | 9.1 | 6.8 | 5.3 | 8.4 | 7.7 | 14.4 | 9.2 | 16.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 |
| Daylight mean duration (h) | 13.5 | 12.9 | 12.2 | 11.5 | 10.9 | 10.6 | 10.7 | 11.3 | 11.9 | 12.7 | 13.3 | 13.7 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 |
| Sunshine mean duration (h) | 10.5 | 8.9 | 10.2 | 9.2 | 8.5 | 7.5 | 7.7 | 9.0 | 8.8 | 8.1 | 8.7 | 10.6 |
| Precipitation (mm) | 179 | 264 | 92 | 113 | 51 | 106 | 159 | 122 | 133 | 365 | 267 | 197 |
| Sunny days | 6 | 4 | 5 | 9 | 17 | 19 | 15 | 20 | 8 | 5 | 4 | 5 |
| Rainy days | 25 | 24 | 26 | 21 | 14 | 11 | 16 | 11 | 22 | 26 | 26 | 26 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Castelo is at