Average annual temperature is 26.6 °C
Absolute maximum temperature: 38.1 °C
Absolute minimum temperature: 20.8 °C
Number of sunny days: 65 days
Number of rainy days: 300 days
Look at detailed online map of Santa Helena
* Weather data for Santa Helena 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) | 32.0 | 32.7 | 32.7 | 32.5 | 32.0 | 33.5 | 35.5 | 36.8 | 36.4 | 37.6 | 38.1 | 33.3 |
| Average daytime temperature (°C) | 29.1 | 30.0 | 29.6 | 30.4 | 30.3 | 31.6 | 34.0 | 34.7 | 34.5 | 35.6 | 33.7 | 31.2 |
| Average temperature (°C) | 24.3 | 25.0 | 24.8 | 25.4 | 25.9 | 26.4 | 27.5 | 28.1 | 28.3 | 29.2 | 27.8 | 26.2 |
| Average night temperature (°C) | 21.8 | 22.1 | 22.3 | 22.4 | 22.9 | 22.3 | 22.2 | 23.1 | 23.8 | 24.5 | 23.9 | 23.2 |
| Absolute minimum temperature (°C) | 20.9 | 21.5 | 21.5 | 21.6 | 21.5 | 20.8 | 20.8 | 21.6 | 21.8 | 23.1 | 21.7 | 22.6 |
| 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) | 12.4 | 12.3 | 12.1 | 12.0 | 11.9 | 11.8 | 11.8 | 11.9 | 12.1 | 12.2 | 12.4 | 12.4 |
| 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) | 7.7 | 8.7 | 7.3 | 8.6 | 9.1 | 10.5 | 10.9 | 10.6 | 10.5 | 10.4 | 9.4 | 8.2 |
| Precipitation (mm) | 417 | 330 | 396 | 337 | 206 | 44 | 5 | 47 | 46 | 42 | 150 | 357 |
| Sunny days | 0 | 0 | 0 | 0 | 1 | 8 | 19 | 10 | 11 | 12 | 4 | 0 |
| Rainy days | 31 | 28 | 31 | 30 | 30 | 22 | 12 | 21 | 19 | 19 | 26 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Santa Helena is at