Average annual temperature is 25.9 °C
Absolute maximum temperature: 38.1 °C
Absolute minimum temperature: 13.5 °C
Number of sunny days: 68 days
Number of rainy days: 297 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) | 32.9 | 33.3 | 33.1 | 32.7 | 32.4 | 31.9 | 34.9 | 36.3 | 37.6 | 38.1 | 36.9 | 33.3 |
| Average daytime temperature (°C) | 29.9 | 29.5 | 29.5 | 29.8 | 29.4 | 29.5 | 33.0 | 33.7 | 34.0 | 34.1 | 32.8 | 30.5 |
| Average temperature (°C) | 24.8 | 24.7 | 24.8 | 24.9 | 25.1 | 24.1 | 26.6 | 27.2 | 27.4 | 27.8 | 26.8 | 25.9 |
| Average night temperature (°C) | 21.7 | 21.9 | 22.1 | 22.0 | 22.3 | 20.0 | 21.4 | 21.9 | 22.8 | 23.7 | 23.2 | 23.1 |
| Absolute minimum temperature (°C) | 19.4 | 19.4 | 20.7 | 19.8 | 20.6 | 13.5 | 19.2 | 19.1 | 20.4 | 21.9 | 22.0 | 21.9 |
| 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 | 12.4 | 12.1 | 11.9 | 11.7 | 11.6 | 11.7 | 11.8 | 12.1 | 12.3 | 12.5 | 12.6 |
| 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) | 8.7 | 8.2 | 7.3 | 8.0 | 9.1 | 9.7 | 10.5 | 10.2 | 9.9 | 10.0 | 9.5 | 8.9 |
| Precipitation (mm) | 270 | 305 | 283 | 230 | 166 | 29 | 15 | 43 | 99 | 118 | 142 | 219 |
| Sunny days | 0 | 0 | 0 | 1 | 2 | 8 | 17 | 19 | 9 | 7 | 3 | 2 |
| Rainy days | 31 | 28 | 31 | 29 | 29 | 22 | 14 | 12 | 21 | 24 | 27 | 29 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in São Luís is at