São Luís, Maranhão, Brazil climate
Average temperatures, precipitation and all-time records for São Luís, Maranhão, Brazil, with every day graded against ~46 years of local climate history (1980–2026). Its warmest month is August, averaging a high of 29°C, and its coldest is February, with an average low of 25°C.
São Luís is the capital and largest city of the Brazilian state of Maranhão. The city is located on São Luís Island, in the Baía de São Marcos, an extension of the Atlantic Ocean which forms the estuary of Pindaré, Mearim, Itapecuru and other rivers. Its coordinates are 2.53° south, 44.30° west. via Wikipedia
How today compares
Latest recorded day: 2026-07-24. Each reading placed on São Luís, Maranhão, Brazil's own ±7-day seasonal distribution.
São Luís average temperatures by month
Typical daily high and low, and average precipitation, for each month in São Luís, Maranhão, Brazil, based on 1980–2026 records. The wettest month is February (13 mm on an average day).
| Month | Avg high | Avg low | Avg precip |
|---|---|---|---|
| January | 28°C | 25°C | 8 mm |
| February | 27°C | 25°C | 13 mm |
| March | 27°C | 25°C | 13 mm |
| April | 28°C | 25°C | 13 mm |
| May | 28°C | 26°C | 10 mm |
| June | 28°C | 26°C | 5 mm |
| July | 28°C | 26°C | 3 mm |
| August | 29°C | 26°C | 0 mm |
| September | 29°C | 26°C | 0 mm |
| October | 28°C | 26°C | 0 mm |
| November | 28°C | 26°C | 0 mm |
| December | 28°C | 26°C | 3 mm |
Each bar spans the 10th-percentile daily low to the 90th-percentile daily high (the range most days fall within), coloured cold → hot on a shared -23°C to 46°C scale, so the whole year's rhythm reads at a glance.
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Record extremes
- Hottest day on record: 32°C on 2015-08-18
- Coldest day on record: 23°C on 1988-05-10
Percentiles compare each day to São Luís, Maranhão, Brazil's own history, so grades are relative to this location: a “Near Record” day here isn't the same temperature as elsewhere. How the grades work →