Weather in Rio de Janeiro in September
In an average September, Rio de Janeiro sees a daily high around 26°C and a low around 19°C, based on 1980–2026 of local climate records.
| Average high | 26°C |
|---|---|
| Typical high range | 21°C to 30°C |
| Average low | 19°C |
| Typical low range | 17°C to 21°C |
| Average daily precipitation | 3 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
37°C
1997-09-09
Lowest
18°C
1990-09-15
Low
Highest
24°C
2023-09-27
Lowest
14°C
2011-09-04
Feels-like
Highest
57°C
2023-09-27
Lowest
15°C
2002-09-03
Humidity
Highest
22.8 g/m³
2023-09-27
Lowest
9.0 g/m³
2011-09-02
Wind
Highest
39 km/h
2013-09-25
Lowest
7 km/h
1983-09-03
Gust
Highest
72 km/h
1995-09-12
Lowest
15 km/h
1983-09-03
Precip
Wettest
243 mm
1983
Driest
10 mm
2017
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