Gramado weather in September
September in Gramado: nice, soaked, with clean air — fine if you can take 15 rainy days.
#9 of 12 months in Gramado · #555 of 897 destinations to visit in September · comfort 78/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Gramado in September
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Gramado climate normals — September
| Daytime high | 20°C / 67°F | 😎 nice |
|---|---|---|
| Nighttime low | 10°C / 50°F | |
| Rainfall | 201 mm / 7.9 in | ⛈ soaked |
| Rainy days | 15 days | |
| Humidity | 82% | 💦 very humid |
| Dew point | 11°C / 51°F | |
| Sunshine | 8.1 h/day | |
| Daylight | 11.9 h | |
| Wind | 14 km/h / 8 mph | |
| Air quality (US AQI) | 48 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Gramado in September — FAQ
- Is September a good time to visit Gramado?
- September in Gramado: nice, soaked, with clean air — fine if you can take 15 rainy days. It ranks #9 of 12 months for Gramado on SeasonMap's comfort score (78/100).
- What is the weather like in Gramado in September?
- In September, Gramado averages a daily high of 19.6°C and a low of 9.9°C, with about 200.5 mm of rain over roughly 15 rainy days.
- What is the air quality in Gramado in September?
- Gramado has a mean US Air Quality Index of about 48 in September.