Mauá Weather in September
What's the weather like in Mauá (São Paulo) in September 2025?
The climate in Mauá during September can be summarized as mild and wet.
September is in the spring in Mauá and is typically the 5th coldest month of the year. Daytime maximum temperatures average around 23°C (73°F), whilst at night 13°C (56°F) is normal.
| Daytime temperature | 22.6°C 72.7°F |
|---|---|
| Nightly temperature | 13.2°C 55.8°F |
| Average temperature | 17.9°C 64.2°F |
| Daily sunshine | 4.2 hrs |
| Avg rainfall | 161 mm 6.3 ins |
| Rainy days | 14 days |
| Sea temperature | 20.9°C 69.6°F |
| Humidity | 79% |
| Windspeed | 10.1kph 6 mph |
On average September is the 5th driest month of the year in Mauá with around 161mm 6.3 inches of rain making it a wet time to visit. This rainfall is typically spread over 14 days, although this may vary considerably.
On the flip side this corresponds to an average of 4.2 hours of sunshine per day.
September temperatures in Mauá
September rainfall
September hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Mauá in September 2025.
Other monthly averages
Best places to visit in September
Mauá weather stats
| Hottest month: | February | 26.5°C 79.7°F |
|---|---|---|
| Driest month: | July | 99mm 3.9ins |
| Sunniest month: | July | 5.3hrs |
| Coldest month: | July | 20.5°C 68.9°F |
| Wettest month: | January | 311mm 12.2ins |
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