Weather in Curitiba in September 2025
Average weather
Average temperature in Curitiba in September
The temperature in September is +77°F on average, with a range between a maximum of +91°F during the day and a minimum of +50°F at night.
The average maximum temperature goes down 26% by the end of the month, compared with the beginning of the month, from +77°F to +66°F.
Is Curitiba warm or cold in September?
Curitiba is typically mild in September.
Maximum temperatures go up compared to the previous month from +70°F to +70°F. The minimum temperature also goes up from +52°F to +54°F.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how September is compared to other months in Curitiba:
Climate in Curitiba in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +70°F | +70°F | +73°F | ||||
| Min. temperature | ||||||
| +27°F | +32°F | +37°F | ||||
| Max. temperature | ||||||
| +86°F | +91°F | +95°F | ||||
| Rainfall | ||||||
| 84 mm | 127 mm | 142 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 83% | 85% | 86% | ||||
| Air pressure | ||||||
| 1019 HPa | 1018 HPa | 1015 HPa | ||||
| Sunny days | ||||||
| 5 | 2 | 1 | ||||
| Cloudy days | ||||||
| 15 | 12 | 9 | ||||
| Rainy days | ||||||
| 11 | 15 | 19 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
September weather is still as ok as in August. The temperature levels stay the same in the area of +70°F for average maximum temperature during the day. Prepare for more rain. Average rainfall goes from 84 mm to 127 mm. Humidity rises from 83% to 85%. The average wind speed doesn’t change much during September, staying around 2 m/s. The days becoming less sunny, going from 5 sunny days in August to 2 in September.
October brings much the same weather, it remains ok.
Wind
The average wind speed is 3 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Curitiba is gradually decreasing during September, going from 3 m/s to 2 m/s over the course of the month.
Rain
How was the weather last September in Curitiba?
Climate Change Over the Years
The climate in Curitiba in September has not changed that much over the last 43 years.
The average temperature was the lowest in 1989 (+72°F) and the highest in 2012 (+75°F). The driest year was 1985 with only 1054 mm of rainfall, and the wettest year was 2023 with 2549 mm.
FAQ
Is September a good time to visit Curitiba?
Can you sunbathe in Curitiba in September?
Is Curitiba rainy in September?
Is it sunny in Curitiba in September?
Other cities in Brazil
Monthly weather in Curitiba
Source of the data
For this page, we’ve looked at the typical weather in Curitiba, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.