Guaratuba Weather in September
What's the weather like in Guaratuba (Paraná) in September 2025?
The climate in Guaratuba during September can be summarized as warm and wet.
September is in the spring in Guaratuba and is typically the 4th coldest month of the year. Daytime maximum temperatures average around 21°C (70°F), whilst at night 15°C (59°F) is normal.
| Daytime temperature | 21.3°C 70.3°F |
|---|---|
| Nightly temperature | 14.8°C 58.6°F |
| Average temperature | 18°C 64.4°F |
| Daily sunshine | 3.1 hrs |
| Avg rainfall | 131 mm 5.2 ins |
| Rainy days | 19 days |
| Sea temperature | 19.4°C 66.9°F |
| Humidity | 84% |
| Windspeed | 10.1kph 6 mph |
On average September is the 5th driest month of the year in Guaratuba with around 131mm 5.2 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 3.1 hours of sunshine per day.
September temperatures in Guaratuba
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 Guaratuba in September 2025.
Other monthly averages
Best places to visit in September
Guaratuba weather stats
| Hottest month: | January | 28.7°C 83.7°F |
|---|---|---|
| Driest month: | July | 83mm 3.3ins |
| Sunniest month: | May | 5.2hrs |
| Coldest month: | July | 20.5°C 68.9°F |
| Wettest month: | February | 280mm 11ins |
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