Average annual temperature is 27.1 °C
Absolute maximum temperature: 33.7 °C
Absolute minimum temperature: 22.3 °C
Number of sunny days: 28 days
Number of rainy days: 337 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) | 30.5 | 29.9 | 30.1 | 30.6 | 31.6 | 30.9 | 33.0 | 32.8 | 33.7 | 32.6 | 33.0 | 32.5 |
| Average daytime temperature (°C) | 28.4 | 28.3 | 27.9 | 28.6 | 29.5 | 29.4 | 30.9 | 31.0 | 31.7 | 31.4 | 31.6 | 31.0 |
| Average temperature (°C) | 26.0 | 25.9 | 25.6 | 26.0 | 26.8 | 26.6 | 27.6 | 27.6 | 28.0 | 28.1 | 28.4 | 28.2 |
| Average night temperature (°C) | 24.1 | 24.2 | 23.8 | 24.1 | 24.7 | 24.4 | 25.4 | 25.5 | 26.0 | 26.2 | 26.5 | 26.1 |
| Absolute minimum temperature (°C) | 22.3 | 23.1 | 22.5 | 22.5 | 23.1 | 23.1 | 23.7 | 24.9 | 25.3 | 25.4 | 25.7 | 24.4 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.2 | 12.2 | 12.1 | 12.1 | 12.0 | 12.0 | 12.0 | 12.0 | 12.1 | 12.2 | 12.2 | 12.3 |
| Daylight minimum 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 |
| Sunshine mean duration (h) | 9.6 | 9.2 | 8.0 | 9.3 | 10.1 | 10.6 | 11.2 | 11.3 | 11.4 | 11.3 | 11.2 | 10.4 |
| Precipitation (mm) | 302 | 346 | 515 | 394 | 222 | 187 | 37 | 37 | 21 | 19 | 19 | 94 |
| Sunny days | 0 | 0 | 0 | 0 | 1 | 0 | 3 | 1 | 7 | 6 | 8 | 2 |
| Rainy days | 31 | 28 | 31 | 30 | 30 | 30 | 28 | 30 | 23 | 25 | 22 | 29 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in São Luís is at