September weather forecast
Curitiba, Brazil

With the commencement of Spring in Curitiba, Brazil, September witnesses a gradual boost in temperatures and a surge in precipitation. The temperature outbreaks from the winter chill and climbs up to a high of 21.3°C (70.3°F). However, an increase in rainfall to 119mm (4.69") over nine days characterizes this pre-summer explosion. Despite some rainy days, the weather remains comfortable for outdoor activities. The rise in temperature, coupled with the continuous daylight hours, marks an end to the chilly winters.

Temperature

Welcoming September, Curitiba notes an average high-temperature of a still pleasant 21.3°C (70.3°F), nearly consistent with August's 20.9°C (69.6°F). During September, an average low-temperature of 10.8°C (51.4°F) is observed in Curitiba.

Humidity

In Curitiba, the average relative humidity in September is 82%.

Rainfall

In Curitiba, during September, the rain falls for 9 days and regularly aggregates up to 119mm (4.69") of precipitation. In Curitiba, during the entire year, the rain falls for 116 days and collects up to 1484mm (58.43") of precipitation.

Daylight

In September, the average length of the day is 11h and 58min.
On the first day of September, sunrise is at 06:28 and sunset at 18:05. On the last day of the month, sunrise is at 05:57 and sunset at 18:16 -03.

Sunshine

The month with the least sunshine in Curitiba is September, with an average of 4.5h of sunshine.

UV index

In Curitiba, the average daily maximum UV index in September is 9. A UV Index reading of 8 to 10 represents a very high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The daily maximum UV index of 9 in September interprets into the following advice:
Take special precautions, as unprotected eyes and skin can be burned and damaged quickly. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.