Curitiba weather in September
September in Curitiba: nice, rainy, with very humid — an excellent time to visit.
#5 of 12 months in Curitiba · #379 of 897 destinations to visit in September · comfort 85/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Curitiba in September
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Curitiba climate normals — September
| Daytime high | 22°C / 72°F | 😎 nice |
|---|---|---|
| Nighttime low | 13°C / 56°F | |
| Rainfall | 107 mm / 4.2 in | 🌧 rainy |
| Rainy days | 11 days | |
| Humidity | 83% | 💦 very humid |
| Dew point | 13°C / 55°F | |
| Sunshine | 7.4 h/day | |
| Daylight | 12 h | |
| Wind | 17 km/h / 10 mph | |
| Air quality (US AQI) | 59 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Curitiba in September — FAQ
- Is September a good time to visit Curitiba?
- September in Curitiba: nice, rainy, with very humid — an excellent time to visit. It ranks #5 of 12 months for Curitiba on SeasonMap's comfort score (85/100).
- What is the weather like in Curitiba in September?
- In September, Curitiba averages a daily high of 22.2°C and a low of 13.1°C, with about 106.5 mm of rain over roughly 11.4 rainy days.
- What is the air quality in Curitiba in September?
- Curitiba has a mean US Air Quality Index of about 59 in September.