Bilbao weather in April
April in Bilbao: cool, rainy, with clean air — an excellent time to visit.
#6 of 12 months in Bilbao · #335 of 897 destinations to visit in April · comfort 83/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Bilbao in April
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Bilbao climate normals — April
| Daytime high | 16°C / 60°F | 🙂 cool |
|---|---|---|
| Nighttime low | 10°C / 50°F | |
| Rainfall | 87 mm / 3.4 in | 🌧 rainy |
| Rainy days | 14 days | |
| Humidity | 81% | 💦 very humid |
| Dew point | 9°C / 49°F | |
| Sunshine | 9.5 h/day | |
| Daylight | 13.4 h | |
| Wind | 17 km/h / 11 mph | |
| Snowfall | 0.1 cm / 0 in | |
| 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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Bilbao in April — FAQ
- Is April a good time to visit Bilbao?
- April in Bilbao: cool, rainy, with clean air — an excellent time to visit. It ranks #6 of 12 months for Bilbao on SeasonMap's comfort score (83/100).
- What is the weather like in Bilbao in April?
- In April, Bilbao averages a daily high of 15.7°C and a low of 10°C, with about 86.8 mm of rain over roughly 14.2 rainy days.
- What is the air quality in Bilbao in April?
- Bilbao has a mean US Air Quality Index of about 42 in April.