Weather in São Luís in September
In an average September, São Luís sees a daily high around 29°C and a low around 26°C, based on 1980–2026 of local climate records.
| Average high | 29°C |
|---|---|
| Typical high range | 28°C to 29°C |
| Average low | 26°C |
| Typical low range | 26°C to 27°C |
| Average daily precipitation | 0 mm |
September records
The most extreme September on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total September accumulation.
High
Highest
31°C
2025-09-05
Lowest
26°C
1984-09-02
Low
Highest
27°C
2023-09-10
Lowest
24°C
2000-09-18
Feels-like
Highest
40°C
2017-09-15
Lowest
26°C
1984-09-02
Humidity
Highest
22.5 g/m³
2023-09-20
Lowest
18.8 g/m³
1982-09-30
Wind
Highest
39 km/h
2013-09-14
Lowest
17 km/h
2010-09-02
Gust
Highest
52 km/h
2013-09-14
Lowest
27 km/h
2000-09-03
Precip
Wettest
95 mm
2000
Driest
4 mm
2024
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