Porto weather in August 2025

Expect 23°C daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in Porto in August. Check more long-term weather averages for Porto in August before you book your next holiday to Corsica in 2025/2026.

  • 23°C maximum daytime temperature in August in Porto23
    23°C max day temperature
  • 10 hours of sunshine per day
  • 6 days with some rainfall in August in Porto6
    6 days with some rainfall
  • 16°C minimum night-time temperature in August in Porto16
    16°C min night temperature
  • 14 hours of daylight per day in August in Porto14
    14 hours of daylight per day
  • Low heat & humidity in August in PortoL
    Low heat & humidity
  • 35 mm monthly rainfall in August in Porto35
    35 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in August in Porto8
    8 (Very High) UV index
  • 25°C sea temperature in August in Porto25
    25°C sea temperature

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The August weather guide for Corsica (Porto) 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 Corsica

How hot is it in Porto in August?

Daytime temperatures usually reach 23°C in Porto in August, falling to 16°C at night.

How sunny is it in Porto in August?

There are normally 10 hours of bright sunshine each day in Porto in August - that's 69% of daylight hours.

How warm is the sea around Porto in August?

The average sea temperature around Porto in August is 25°C.

Does it rain in Porto in August?

There are usually 6 days with some rain in Porto in August and the average monthly rainfall is 35mm.

Porto August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:18 19:44
Saturday, 16th August 2025 05:34 19:24
Sunday, 31st August 2025 05:50 19:01

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