Historical weather in São Luís, Brazil
São Luís weather history for 2023-2025, with daily temperatures, precipitation, monthly summaries, and records from Open-Meteo archive data.
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Weather summary
Across 2023-2025, São Luís averaged 30.8 C for daily highs and 24.5 C for daily lows across 1096 daily observations.
The warmest month was September 2024, with an average high of 32.8 C, while March 2023 had the lowest average low at 23.3 C.
The wettest month was March 2024, totaling 590.0 mm of precipitation.
The hottest day reached 35.4 C on October 26, 2025; the coldest night fell to 21.7 C on January 30, 2023.
Monthly summary table
| Year | Month | Avg low C | Avg high C | Rain and snow mm | Days |
|---|---|---|---|---|---|
| 2023 | January | 23.4 | 29.2 | 280.5 | 31 |
| 2023 | February | 23.6 | 28.9 | 313.2 | 28 |
| 2023 | March | 23.3 | 28.5 | 468.6 | 31 |
| 2023 | April | 23.5 | 29.2 | 382.0 | 30 |
| 2023 | May | 24.1 | 29.9 | 183.2 | 31 |
| 2023 | June | 23.6 | 29.9 | 175.9 | 30 |
| 2023 | July | 24.3 | 31.1 | 58.9 | 31 |
| 2023 | August | 24.6 | 31.4 | 40.9 | 31 |
| 2023 | September | 25.3 | 32.7 | 32.2 | 30 |
| 2023 | October | 25.6 | 32.2 | 43.9 | 31 |
| 2023 | November | 25.9 | 32.2 | 39.4 | 30 |
| 2023 | December | 25.5 | 31.6 | 137.3 | 31 |
| 2024 | January | 24.8 | 30.2 | 229.2 | 31 |
| 2024 | February | 24.0 | 29.3 | 410.4 | 29 |
| 2024 | March | 23.8 | 29.5 | 590.0 | 31 |
| 2024 | April | 23.9 | 29.7 | 486.7 | 30 |
| 2024 | May | 24.2 | 30.8 | 194.3 | 31 |
| 2024 | June | 23.9 | 30.6 | 87.9 | 30 |
| 2024 | July | 23.7 | 31.3 | 30.0 | 31 |
| 2024 | August | 24.3 | 32.2 | 28.1 | 31 |
| 2024 | September | 24.9 | 32.8 | 19.4 | 30 |
| 2024 | October | 25.4 | 32.3 | 27.7 | 31 |
| 2024 | November | 25.5 | 32.4 | 39.5 | 30 |
| 2024 | December | 25.5 | 31.7 | 89.9 | 31 |
| 2025 | January | 23.9 | 29.9 | 329.4 | 31 |
| 2025 | February | 23.6 | 29.5 | 377.5 | 28 |
| 2025 | March | 23.8 | 29.7 | 373.2 | 31 |
| 2025 | April | 24.0 | 29.7 | 295.6 | 30 |
| 2025 | May | 24.3 | 30.6 | 169.0 | 31 |
| 2025 | June | 24.1 | 30.7 | 120.1 | 30 |
| 2025 | July | 24.2 | 30.4 | 79.0 | 31 |
| 2025 | August | 24.7 | 31.5 | 62.4 | 31 |
| 2025 | September | 25.4 | 32.8 | 29.9 | 30 |
| 2025 | October | 25.4 | 32.5 | 47.6 | 31 |
| 2025 | November | 25.7 | 32.0 | 33.3 | 30 |
| 2025 | December | 25.3 | 31.3 | 100.8 | 31 |
Daily weather records
| Record | Date | Value |
|---|---|---|
| Hottest day | October 26, 2025 | 35.4 C |
| Coldest night | January 30, 2023 | 21.7 C |
| Wettest day | March 17, 2024 | 106.0 mm |
Related pages
Weather data source: Open-Meteo Archive API. City metadata source: GeoNames cities15000.