São Luís weather in January
January is a fair month to visit São Luís: highs of 30°C (85°F) and about 191 mm (7.5 in) of rain on average. Nights average 25°C (76°F) and cloud cover 73% (NASA POWER, 2001–2025 averages). It is the 5th wettest month of the year and the 6th warmest. Compared with December, it is cooler and wetter; February brings highs of 29°C (83°F) and 247 mm (9.7 in) of rain.
Is January a good time to visit São Luís?
fair month Weather score 54/100.
January is a fair month in São Luís. The weather is usually best in Jul–Dec.
Does it rain a lot in São Luís in January?
Yes, it is one of the rainy months: about 191 mm (7.5 in) falls in an average January. It is the 5th wettest month of the year.
How warm is São Luís in January?
Days average 30°C (85°F) and nights 25°C (76°F).
São Luís weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 30°C (85°F) | 25°C (76°F) | 191 mm | 73% | fair |
| February | 29°C (83°F) | 25°C (76°F) | 247 mm | 81% | least pleasant |
| March | 28°C (83°F) | 25°C (76°F) | 322 mm | 82% | least pleasant |
| April | 28°C (82°F) | 25°C (77°F) | 357 mm | 82% | least pleasant |
| May | 28°C (83°F) | 25°C (77°F) | 238 mm | 67% | least pleasant |
| June | 29°C (84°F) | 25°C (76°F) | 149 mm | 50% | fair |
| July | 29°C (84°F) | 24°C (76°F) | 88 mm | 38% | best |
| August | 31°C (87°F) | 24°C (76°F) | 23 mm | 26% | best |
| September | 32°C (89°F) | 25°C (76°F) | 23 mm | 25% | best |
| October | 31°C (89°F) | 25°C (77°F) | 15 mm | 34% | best |
| November | 31°C (88°F) | 25°C (78°F) | 17 mm | 46% | best |
| December | 31°C (87°F) | 25°C (78°F) | 47 mm | 58% | best |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months