Barcelona weather in August 2025

Expect 81°F daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Barcelona in August. Check more long-term weather averages for Barcelona in August before you book your next holiday to Spain in 2025/2026.

  • 81°F maximum daytime temperature in August in Barcelona81
    81°F max day temperature
  • 9 hours of sunshine per day
  • 8 days with some rainfall in August in Barcelona8
    8 days with some rainfall
  • 66°F minimum night-time temperature in August in Barcelona66
    66°F min night temperature
  • 14 hours of daylight per day in August in Barcelona14
    14 hours of daylight per day
  • Moderate heat & humidity in August in BarcelonaM
    Moderate heat & humidity
  • 2.1 inches monthly rainfall in August in Barcelona2.1
    2.1 inches of monthly rainfall
  • UV (maximum) index 8 (Very High) in August in Barcelona8
    8 (Very High) UV index
  • 77°F sea temperature in August in Barcelona77
    77°F sea temperature

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The August weather guide for Spain (Barcelona) 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)  |  Imperial (°F)

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How hot is it in Barcelona in August?

Daytime temperatures usually reach 81°F in Barcelona in August with moderate heat and humidity, falling to 66°F at night.

How sunny is it in Barcelona in August?

There are normally 9 hours of bright sunshine each day in Barcelona in August - that's 62% of daylight hours.

How warm is the sea around Barcelona in August?

The average sea temperature around Barcelona in August is 77°F.

Does it rain in Barcelona in August?

There are usually 8 days with some rain in Barcelona in August and the average monthly rainfall is 2.1 inches.

Barcelona August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:46 20:08
Saturday, 16th August 2025 06:01 19:49
Sunday, 31st August 2025 06:17 19:26

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