Average annual temperature is 20.8 °C
Absolute maximum temperature: 36.5 °C
Absolute minimum temperature: 8.2 °C
Number of sunny days: 121 days
Number of rainy days: 244 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) | 29.3 | 31.3 | 30.8 | 29.7 | 25.5 | 26.6 | 28.0 | 30.5 | 33.9 | 31.3 | 36.5 | 31.1 |
| Average daytime temperature (°C) | 26.5 | 28.7 | 28.7 | 24.8 | 22.6 | 23.0 | 22.2 | 23.8 | 26.6 | 26.6 | 28.6 | 27.7 |
| Average temperature (°C) | 22.1 | 23.5 | 23.2 | 20.5 | 18.1 | 17.7 | 17.3 | 18.7 | 20.7 | 21.8 | 23.2 | 22.8 |
| Average night temperature (°C) | 18.9 | 19.5 | 18.9 | 17.4 | 14.4 | 13.5 | 13.4 | 14.7 | 15.7 | 18.3 | 18.8 | 18.8 |
| Absolute minimum temperature (°C) | 16.9 | 18.2 | 17.3 | 14.1 | 10.3 | 10.5 | 8.2 | 11.6 | 12.6 | 15.2 | 12.8 | 15.2 |
| 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 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 |
| Daylight mean duration (h) | 13.2 | 12.8 | 12.2 | 11.6 | 11.1 | 10.9 | 11.0 | 11.4 | 12.0 | 12.6 | 13.1 | 13.4 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 |
| Sunshine mean duration (h) | 8.7 | 10.9 | 10.7 | 8.6 | 9.4 | 9.3 | 8.6 | 8.9 | 9.2 | 7.6 | 10.3 | 10.7 |
| Precipitation (mm) | 322 | 112 | 39 | 196 | 17 | 19 | 42 | 80 | 26 | 200 | 144 | 177 |
| Sunny days | 2 | 8 | 8 | 4 | 10 | 23 | 12 | 15 | 19 | 5 | 11 | 4 |
| Rainy days | 29 | 20 | 23 | 26 | 21 | 7 | 19 | 16 | 11 | 26 | 19 | 27 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Castelo is at