São Luís Climate: Weather by Month and Best Time to Visit
Best months for São Luís: September, October, November.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 28°C | 25°C | 221 mm | 25 | – | – | 6.1 |
| February | 28°C | 25°C | 305 mm | 26 | – | – | 6.1 |
| March | 27°C | 25°C | 439 mm | 30 | – | – | 6.1 |
| April | 28°C | 25°C | 416 mm | 29 | – | – | 6.1 |
| May | 28°C | 26°C | 286 mm | 27 | – | – | 6.1 |
| June | 28°C | 26°C | 153 mm | 23 | – | – | 6.1 |
| July | 29°C | 26°C | 103 mm | 20 | – | – | 6.3 |
| August | 29°C | 26°C | 28 mm | 9 | – | – | 7.9 |
| September | 29°C | 26°C | 11 mm | 3 | – | – | 8.7 |
| October | 28°C | 26°C | 13 mm | 4 | – | – | 8.6 |
| November | 28°C | 26°C | 27 mm | 7 | – | – | 8.2 |
| December | 28°C | 26°C | 73 mm | 15 | – | – | 7.1 |