Cagliari weather in August 2025

Expect 30°C daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in Cagliari in August. Check more long-term weather averages for Cagliari in August before you book your next holiday to Sardinia in 2025/2026.

  • 30°C maximum daytime temperature in August in Cagliari30
    30°C max day temperature
  • 10 hours of sunshine per day
  • 3 days with some rainfall in August in Cagliari3
    3 days with some rainfall
  • 19°C minimum night-time temperature in August in Cagliari19
    19°C min night temperature
  • 14 hours of daylight per day in August in Cagliari14
    14 hours of daylight per day
  • Moderate heat & humidity in August in CagliariM
    Moderate heat & humidity
  • 8 mm monthly rainfall in August in Cagliari8
    8 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in August in Cagliari8
    8 (Very High) UV index
  • 25°C sea temperature in August in Cagliari25
    25°C sea temperature

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The August weather guide for Sardinia (Cagliari) 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 Sardinia

How hot is it in Cagliari in August?

Daytime temperatures usually reach 30°C in Cagliari in August with moderate heat and humidity, falling to 19°C at night.

How sunny is it in Cagliari in August?

There are normally 10 hours of bright sunshine each day in Cagliari in August - that's 73% of daylight hours.

How warm is the sea around Cagliari in August?

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

Does it ever rain in Cagliari in August?

There are usually 3 days with some rain in Cagliari in August and the average monthly rainfall is 8mm.

Cagliari August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:24 19:35
Saturday, 16th August 2025 05:38 19:17
Sunday, 31st August 2025 05:51 18:56

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