Curitiba weather in September
In September, Curitiba has an average high of 22 °C72 °F and an average low of 11 °C51 °F, with about 122 mm4.8 in of precipitation. It is the 8th warmest month of the year and ranks 7th for precipitation.
How September compares with other months
Compared with August, September is 1.8 °C3.2 °F warmer on average and wetter by 45 mm1.8 in. Compared with October, September is 1.8 °C3.2 °F cooler on average and drier by 26 mm1.0 in. Daylight lasts about 12.0 hours around the middle of the month. Average relative humidity is 81% and the average cloud amount 65%.
Is September a good time to visit Curitiba?
September is not among the most comfortable months by our comfort score: it is fairly wet (122 mm4.8 in). The most comfortable months in Curitiba are April and August.
What to wear in September
For Curitiba in September, pack light layers — T-shirts plus a light sweater or jacket, an extra layer for the cooler mornings and evenings and an umbrella or light rain jacket.
September in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Curitiba | 2272 | 1151 | 1224.8 |
| Paranaguá | 2576 | 1560 | 1285.0 |
| Ponta Grossa | 2374 | 1151 | 1134.4 |
| Joinville | 2373 | 1660 | 1355.3 |
| Jaraguá do Sul | 2577 | 1559 | 1355.3 |
| Blumenau | 2476 | 1559 | 1435.6 |
| Itajaí | 2373 | 1660 | 1425.6 |
| Brusque | 2373 | 1560 | 1425.6 |
| Guarapuava | 2170 | 1050 | 1254.9 |
Nearby places that are more than 1 °C1.8 °F warmer in September: Paranaguá, Joinville, Jaraguá do Sul and Blumenau.
Other months in Curitiba
- January26 °C78 °F / 17 °C62 °F
- February26 °C79 °F / 17 °C62 °F
- March25 °C77 °F / 16 °C60 °F
- April23 °C74 °F / 14 °C57 °F
- May20 °C68 °F / 11 °C51 °F
- June19 °C65 °F / 9 °C48 °F
- July18 °C65 °F / 8 °C47 °F
- August20 °C69 °F / 9 °C48 °F
- September22 °C72 °F / 11 °C51 °F
- October24 °C75 °F / 13 °C55 °F
- November24 °C76 °F / 14 °C57 °F
- December26 °C79 °F / 16 °C60 °F
Frequently asked questions
How warm is Curitiba in September?
In September the average high in Curitiba is 22 °C (72 °F) and the average low is 11 °C (51 °F).
Does it rain a lot in Curitiba in September?
On average about 122 mm (4.8 in) of precipitation falls in September; it ranks 7th of the 12 months.
Is September the warmest month in Curitiba?
No. The warmest month in Curitiba is December, with an average high of 26 °C (79 °F). The coldest month is July, with an average low of 8 °C (47 °F).
How long is the day in Curitiba in September?
In the middle of September the day in Curitiba lasts about 12.0 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Curitiba in September?
The average relative humidity in September is about 81%. This is a long-term average for the whole day.
How cloudy is Curitiba in September?
On average about 65% of the sky is covered by cloud in September. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.