Average annual temperature is 27.1 °C
Absolute maximum temperature: 37.6 °C
Absolute minimum temperature: 20.4 °C
Number of sunny days: 35 days
Number of rainy days: 330 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) | 32.2 | 32.3 | 32.6 | 32.0 | 32.2 | 33.1 | 33.5 | 35.3 | 37.6 | 36.9 | 37.1 | 35.9 |
| Average daytime temperature (°C) | 30.1 | 30.4 | 29.7 | 30.2 | 30.4 | 31.0 | 32.1 | 33.0 | 35.3 | 35.6 | 35.3 | 33.6 |
| Average temperature (°C) | 25.5 | 25.5 | 25.3 | 25.7 | 26.2 | 26.5 | 27.0 | 27.7 | 29.3 | 29.4 | 29.2 | 28.2 |
| Average night temperature (°C) | 22.4 | 22.5 | 22.6 | 22.8 | 23.2 | 22.9 | 22.7 | 23.1 | 23.9 | 24.3 | 24.6 | 24.4 |
| Absolute minimum temperature (°C) | 20.4 | 21.8 | 21.5 | 21.8 | 22.2 | 21.7 | 21.0 | 22.1 | 22.8 | 23.4 | 23.5 | 23.2 |
| 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 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.3 | 12.2 | 12.1 | 12.0 | 12.0 | 11.9 | 11.9 | 12.0 | 12.1 | 12.2 | 12.3 | 12.3 |
| Daylight minimum duration (h) | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Sunshine mean duration (h) | 9.0 | 8.6 | 7.3 | 8.1 | 9.2 | 10.6 | 10.9 | 11.0 | 11.3 | 11.2 | 10.8 | 9.6 |
| Precipitation (mm) | 194 | 342 | 533 | 305 | 212 | 39 | 33 | 12 | 5 | 13 | 62 | 124 |
| Sunny days | 0 | 0 | 0 | 0 | 1 | 5 | 1 | 4 | 10 | 5 | 7 | 2 |
| Rainy days | 31 | 28 | 31 | 30 | 30 | 25 | 30 | 27 | 20 | 26 | 23 | 29 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Castelo is at