Average annual temperature is 25.8 °C
Absolute maximum temperature: 37.9 °C
Absolute minimum temperature: 14.2 °C
Number of sunny days: 57 days
Number of rainy days: 308 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) | 32.3 | 33.2 | 32.1 | 32.2 | 32.7 | 31.9 | 34.5 | 35.5 | 37.9 | 37.7 | 35.7 | 33.3 |
| Average daytime temperature (°C) | 29.5 | 29.8 | 30.1 | 29.5 | 29.7 | 29.2 | 32.2 | 33.4 | 34.1 | 33.7 | 32.2 | 30.6 |
| Average temperature (°C) | 24.7 | 24.9 | 25.0 | 25.0 | 25.3 | 24.0 | 26.1 | 27.0 | 27.5 | 27.5 | 26.7 | 25.9 |
| Average night temperature (°C) | 22.0 | 22.1 | 22.3 | 22.3 | 22.4 | 20.6 | 21.4 | 22.4 | 23.2 | 23.5 | 23.3 | 23.2 |
| Absolute minimum temperature (°C) | 20.8 | 19.7 | 20.8 | 20.9 | 21.3 | 14.2 | 18.7 | 19.8 | 21.5 | 22.0 | 21.9 | 22.0 |
| 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 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.5 | 12.3 | 12.1 | 11.9 | 11.8 | 11.7 | 11.7 | 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) | 8.6 | 8.9 | 8.4 | 8.4 | 9.4 | 9.1 | 10.7 | 10.2 | 10.0 | 9.7 | 9.1 | 8.9 |
| Precipitation (mm) | 317 | 307 | 302 | 244 | 190 | 103 | 26 | 57 | 78 | 116 | 139 | 210 |
| Sunny days | 2 | 0 | 1 | 2 | 1 | 5 | 14 | 12 | 7 | 8 | 4 | 1 |
| Rainy days | 29 | 28 | 30 | 28 | 30 | 25 | 17 | 19 | 23 | 23 | 26 | 30 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in São Luís is at