Average annual temperature is 27.6 °C
Absolute maximum temperature: 39.6 °C
Absolute minimum temperature: 20.9 °C
Number of sunny days: 124 days
Number of rainy days: 241 days
Look at detailed online map of São Martim
* Weather data for São Martim 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) | 34.2 | 32.4 | 32.6 | 32.2 | 32.2 | 32.9 | 35.0 | 36.6 | 38.2 | 39.6 | 38.2 | 37.8 |
| Average daytime temperature (°C) | 31.3 | 30.7 | 29.9 | 30.5 | 31.0 | 31.3 | 32.4 | 35.0 | 36.9 | 36.8 | 36.6 | 35.3 |
| Average temperature (°C) | 26.1 | 25.9 | 25.4 | 25.8 | 26.7 | 26.7 | 27.3 | 28.7 | 29.8 | 29.7 | 29.9 | 29.2 |
| Average night temperature (°C) | 22.8 | 22.8 | 22.6 | 22.8 | 23.4 | 23.0 | 23.3 | 23.6 | 24.3 | 24.8 | 25.3 | 25.1 |
| Absolute minimum temperature (°C) | 20.9 | 21.6 | 21.4 | 21.9 | 22.1 | 21.9 | 21.2 | 22.7 | 23.2 | 24.1 | 24.5 | 24.0 |
| 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) | 9.8 | 8.8 | 7.6 | 8.5 | 10.0 | 10.7 | 11.1 | 11.2 | 11.3 | 11.2 | 10.8 | 10.1 |
| Precipitation (mm) | 200 | 296 | 496 | 310 | 108 | 39 | 5 | 4 | 0 | 9 | 7 | 105 |
| Sunny days | 1 | 1 | 2 | 4 | 3 | 7 | 18 | 22 | 25 | 19 | 14 | 8 |
| Rainy days | 30 | 27 | 29 | 26 | 28 | 23 | 13 | 9 | 5 | 12 | 16 | 23 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in São Martim is at