Bilbao weather in December
December in Bilbao: cool, rainy, with clean air — a good time to visit.
#11 of 12 months in Bilbao · #518 of 897 destinations to visit in December · comfort 68/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Bilbao in December
No notes yet. Open Bilbao on the map to add the first one.
Bilbao climate normals — December
| Daytime high | 14°C / 57°F | 🙂 cool |
|---|---|---|
| Nighttime low | 9°C / 49°F | |
| Rainfall | 135 mm / 5.3 in | 🌧 rainy |
| Rainy days | 16 days | |
| Humidity | 78% | 💦 very humid |
| Dew point | 8°C / 46°F | |
| Sunshine | 5.7 h/day | |
| Daylight | 9 h | |
| Wind | 22 km/h / 14 mph | |
| Air quality (US AQI) | 33 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Bilbao?
Loading map…
Bilbao in December — FAQ
- Is December a good time to visit Bilbao?
- December in Bilbao: cool, rainy, with clean air — a good time to visit. It ranks #11 of 12 months for Bilbao on SeasonMap's comfort score (68/100).
- What is the weather like in Bilbao in December?
- In December, Bilbao averages a daily high of 14°C and a low of 9.2°C, with about 134.5 mm of rain over roughly 16.4 rainy days.
- What is the air quality in Bilbao in December?
- Bilbao has a mean US Air Quality Index of about 33 in December.