The climate in São Paulo during September can be summarized as warm and reasonably dry.
September is in the spring in São Paulo and is typically the 5th coldest month of the year. Daytime maximum temperatures average around 24°C (75°F), whilst at night 14°C (57°F) is normal.
|Daytime temperature||23.6°C 74.5°F|
|Nightly temperature||13.8°C 56.8°F|
|Average temperature||18.7°C 65.7°F|
|Daily sunshine||4.5 hrs|
|Avg rainfall||71 mm 2.8 ins|
|Rainy days||13 days|
|Sea temperature||20.9°C 69.6°F|
|Windspeed||9.7kph 6 mph|
On average September is the 5th driest month of the year in São Paulo with around 71mm 2.8 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.
On the flip side this corresponds to an average of 4.5 hours of sunshine per day.
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 São Paulo in September 2023.
|Hottest month:||February||27.5°C 81.5°F|
|Driest month:||July||36mm 1.4ins|
|Coldest month:||July||21.6°C 70.9°F|
|Wettest month:||January||238mm 9.4ins|