Bilbao weather in May 2025

Expect 19°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Bilbao in May. Check more long-term weather averages for Bilbao in May before you book your next holiday to Spain in 2025/2026.

  • 19°C maximum daytime temperature in May in Bilbao19
    19°C max day temperature
  • 5 hours of sunshine per day
  • 16 days with some rainfall in May in Bilbao16
    16 days with some rainfall
  • 9°C minimum night-time temperature in May in Bilbao9
    9°C min night temperature
  • 15 hours of daylight per day in May in Bilbao15
    15 hours of daylight per day
  • No heat & humidity in May in Bilbao0
    No heat & humidity
  • 90 mm monthly rainfall in May in Bilbao90
    90 mm of monthly rainfall
  • UV (maximum) index 7 (High) in May in Bilbao7
    7 (High) UV index
  • 15°C sea temperature in May in Bilbao15
    15°C sea temperature

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The May weather guide for Spain (Bilbao) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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More about Spain

How hot is it in Bilbao in May?

Daytime temperatures usually reach 19°C in Bilbao in May, falling to 9°C at night.

How sunny is it in Bilbao in May?

There are normally 5 hours of bright sunshine each day in Bilbao in May - that's 35% of daylight hours.

How warm is the sea around Bilbao in May?

The average sea temperature around Bilbao in May is 15°C.

Does it rain in Bilbao in May?

There are usually 16 days with some rain in Bilbao in May and the average monthly rainfall is 90mm.

Bilbao May sunrise & sunset times

Browse the sunrise and sunset times for Bilbao in May 2025. Select a month to view Bilbao sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 06:05 20:14
Friday, 16th May 2025 05:47 20:30
Saturday, 31st May 2025 05:35 20:44

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