Aveiro weather in December
December in Aveiro: cool, soaked, with clean air — fine if you can take 18 rainy days.
#12 of 12 months in Aveiro · #566 of 897 destinations to visit in December · comfort 65/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Aveiro in December
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Aveiro climate normals — December
| Daytime high | 15°C / 59°F | 🙂 cool |
|---|---|---|
| Nighttime low | 9°C / 49°F | |
| Rainfall | 193 mm / 7.6 in | ⛈ soaked |
| Rainy days | 18 days | |
| Humidity | 86% | 💦 very humid |
| Dew point | 10°C / 50°F | |
| Sunshine | 6 h/day | |
| Daylight | 9.3 h | |
| Wind | 24 km/h / 15 mph | |
| Air quality (US AQI) | 42 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Aveiro in December — FAQ
- Is December a good time to visit Aveiro?
- December in Aveiro: cool, soaked, with clean air — fine if you can take 18 rainy days. It ranks #12 of 12 months for Aveiro on SeasonMap's comfort score (65/100).
- What is the weather like in Aveiro in December?
- In December, Aveiro averages a daily high of 15°C and a low of 9.4°C, with about 192.7 mm of rain over roughly 17.6 rainy days.
- What is the air quality in Aveiro in December?
- Aveiro has a mean US Air Quality Index of about 42 in December.