Average annual temperature is 27.2 °C
Absolute maximum temperature: 37.9 °C
Absolute minimum temperature: 17.8 °C
Number of sunny days: 208 days
Number of rainy days: 157 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) | 35.5 | 36.3 | 37.2 | 32.4 | 33.3 | 33.5 | 33.4 | 35.7 | 37.0 | 37.3 | 37.9 | 37.3 |
| Average daytime temperature (°C) | 33.6 | 34.1 | 31.9 | 30.7 | 31.5 | 30.8 | 30.7 | 33.3 | 34.5 | 36.0 | 35.8 | 35.1 |
| Average temperature (°C) | 27.6 | 28.0 | 26.4 | 25.5 | 26.5 | 25.8 | 25.0 | 27.0 | 27.7 | 29.0 | 29.3 | 29.0 |
| Average night temperature (°C) | 22.3 | 22.9 | 22.1 | 21.4 | 22.0 | 21.5 | 19.6 | 21.0 | 21.5 | 22.4 | 23.2 | 23.4 |
| Absolute minimum temperature (°C) | 19.8 | 20.3 | 20.4 | 20.2 | 20.7 | 19.6 | 17.8 | 19.3 | 20.0 | 20.8 | 21.6 | 21.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.5 | 12.3 | 12.1 | 12.0 | 11.8 | 11.7 | 11.8 | 11.9 | 12.1 | 12.3 | 12.4 | 12.5 |
| Daylight minimum duration (h) | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 |
| Sunshine mean duration (h) | 11.0 | 10.6 | 9.5 | 10.7 | 10.3 | 9.3 | 10.2 | 10.5 | 10.8 | 11.4 | 11.4 | 10.7 |
| Precipitation (mm) | 52 | 33 | 224 | 90 | 25 | 38 | 25 | 3 | 1 | 0 | 10 | 18 |
| Sunny days | 10 | 8 | 8 | 5 | 11 | 14 | 24 | 29 | 26 | 30 | 23 | 20 |
| Rainy days | 21 | 20 | 23 | 25 | 20 | 16 | 7 | 2 | 4 | 1 | 7 | 11 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Castelo is at