Bilbao weather in August 2025

Expect 24°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Bilbao in August. Check more long-term weather averages for Bilbao in August before you book your next holiday to Spain in 2025/2026.

  • 24°C maximum daytime temperature in August in Bilbao24
    24°C max day temperature
  • 6 hours of sunshine per day
  • 12 days with some rainfall in August in Bilbao12
    12 days with some rainfall
  • 14°C minimum night-time temperature in August in Bilbao14
    14°C min night temperature
  • 14 hours of daylight per day in August in Bilbao14
    14 hours of daylight per day
  • No heat & humidity in August in Bilbao0
    No heat & humidity
  • 82 mm monthly rainfall in August in Bilbao82
    82 mm of monthly rainfall
  • UV (maximum) index 7 (High) in August in Bilbao7
    7 (High) UV index
  • 22°C sea temperature in August in Bilbao22
    22°C sea temperature

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The August 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 August?

Daytime temperatures usually reach 24°C in Bilbao in August, falling to 14°C at night.

How sunny is it in Bilbao in August?

There are normally 6 hours of bright sunshine each day in Bilbao in August - that's 42% of daylight hours.

How warm is the sea around Bilbao in August?

The average sea temperature around Bilbao in August is 22°C.

Does it rain in Bilbao in August?

There are usually 12 days with some rain in Bilbao in August and the average monthly rainfall is 82mm.

Bilbao August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 06:02 20:33
Saturday, 16th August 2025 06:18 20:13
Sunday, 31st August 2025 06:35 19:48

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