Average annual temperature is 27.1 °C
Absolute maximum temperature: 37.3 °C
Absolute minimum temperature: 19.8 °C
Number of sunny days: 84 days
Number of rainy days: 281 days
Look at detailed online map of São Luís
* Weather data for São Luís 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) | 31.3 | 31.9 | 32.0 | 32.4 | 32.1 | 33.7 | 36.1 | 35.4 | 36.1 | 37.3 | 36.2 | 33.4 |
| Average daytime temperature (°C) | 28.7 | 29.8 | 29.5 | 29.8 | 30.3 | 31.2 | 33.7 | 33.4 | 34.1 | 34.5 | 33.7 | 31.3 |
| Average temperature (°C) | 25.1 | 25.8 | 25.7 | 26.0 | 26.4 | 26.7 | 27.3 | 28.1 | 28.7 | 29.2 | 28.6 | 27.1 |
| Average night temperature (°C) | 22.8 | 23.1 | 23.3 | 23.3 | 23.7 | 23.0 | 22.2 | 23.7 | 24.5 | 25.1 | 25.0 | 24.3 |
| Absolute minimum temperature (°C) | 22.3 | 22.1 | 22.6 | 22.6 | 22.8 | 20.5 | 19.8 | 22.2 | 23.2 | 23.0 | 23.9 | 22.5 |
| 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) | 12.4 | 12.3 | 12.1 | 12.0 | 11.8 | 11.8 | 11.8 | 11.9 | 12.1 | 12.2 | 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) | 7.3 | 8.6 | 7.8 | 8.6 | 9.2 | 10.6 | 11.0 | 10.4 | 10.8 | 9.9 | 10.1 | 9.2 |
| Precipitation (mm) | 345 | 256 | 303 | 265 | 173 | 35 | 6 | 38 | 21 | 80 | 102 | 212 |
| Sunny days | 0 | 0 | 0 | 1 | 0 | 8 | 25 | 20 | 13 | 11 | 5 | 1 |
| Rainy days | 31 | 28 | 31 | 29 | 31 | 22 | 6 | 11 | 17 | 20 | 25 | 30 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in São Luís is at