São Joaquim Weather in September
What's the weather like in São Joaquim (Santa Catarina) in September 2025?
The climate in São Joaquim during September can be summarized as mild and wet.
September is in the spring in São Joaquim and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a cool 18°C (64°F), whilst at night 8°C (46°F) is normal.
| Daytime temperature | 17.5°C 63.5°F |
|---|---|
| Nightly temperature | 7.7°C 45.9°F |
| Average temperature | 12.6°C 54.7°F |
| Daily sunshine | 4.7 hrs |
| Avg rainfall | 164 mm 6.5 ins |
| Rainy days | 19 days |
| Sea temperature | 19.1°C 66.4°F |
| Humidity | 79% |
| Windspeed | 11.9kph 7 mph |
On average September is the 2nd wettest month of the year in São Joaquim with around 164mm 6.5 inches of rain making it a wet time to visit. This rainfall is typically spread over 19 days, although this may vary considerably.
On the flip side this corresponds to an average of 4.7 hours of sunshine per day.
September temperatures in São Joaquim
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 São Joaquim in September 2025.
Other monthly averages
Best places to visit in September
São Joaquim weather stats
| Hottest month: | February | 23.4°C 74.1°F |
|---|---|---|
| Driest month: | April | 105mm 4.1ins |
| Sunniest month: | July | 5.2hrs |
| Coldest month: | July | 15°C 59°F |
| Wettest month: | January | 168mm 6.6ins |
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