Aveiro weather in September
September in Aveiro: warm, a little rain, with very humid — an excellent time to visit.
#5 of 12 months in Aveiro · #275 of 897 destinations to visit in September · comfort 87/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Aveiro in September
No notes yet. Open Aveiro on the map to add the first one.
Aveiro climate normals — September
| Daytime high | 25°C / 77°F | 🌤 warm |
|---|---|---|
| Nighttime low | 17°C / 62°F | |
| Rainfall | 68 mm / 2.7 in | 🌦 some rain |
| Rainy days | 8 days | |
| Humidity | 82% | 💦 very humid |
| Dew point | 16°C / 62°F | |
| Sunshine | 10.6 h/day | |
| Daylight | 12.5 h | |
| Wind | 20 km/h / 12 mph | |
| Air quality (US AQI) | 58 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Aveiro?
Loading map…
Aveiro in September — FAQ
- Is September a good time to visit Aveiro?
- September in Aveiro: warm, a little rain, with very humid — an excellent time to visit. It ranks #5 of 12 months for Aveiro on SeasonMap's comfort score (87/100).
- What is the weather like in Aveiro in September?
- In September, Aveiro averages a daily high of 25°C and a low of 16.6°C, with about 68 mm of rain over roughly 8 rainy days.
- What is the air quality in Aveiro in September?
- Aveiro has a mean US Air Quality Index of about 58 in September.