Heraklion weather in August 2025

Expect 28°C daytime maximum temperatures in the shade with on average 11 hours of sunshine per day in Heraklion in August. Check more long-term weather averages for Heraklion in August before you book your next holiday to Crete in 2025/2026.

  • 28°C maximum daytime temperature in August in Heraklion28
    28°C max day temperature
  • 11 hours of sunshine per day
  • 0 days with some rainfall in August in Heraklion0
    0 days with some rainfall
  • 20°C minimum night-time temperature in August in Heraklion20
    20°C min night temperature
  • 13 hours of daylight per day in August in Heraklion13
    13 hours of daylight per day
  • Moderate heat & humidity in August in HeraklionM
    Moderate heat & humidity
  • 1 mm monthly rainfall in August in Heraklion1
    1 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in August in Heraklion10
    10 (Very High) UV index
  • 25°C sea temperature in August in Heraklion25
    25°C sea temperature

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The August weather guide for Crete (Heraklion) 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 Crete

How hot is it in Heraklion in August?

Daytime temperatures usually reach 28°C in Heraklion in August with moderate heat and humidity, falling to 20°C at night.

How sunny is it in Heraklion in August?

There are normally 11 hours of bright sunshine each day in Heraklion in August - that's 85% of daylight hours.

How warm is the sea around Heraklion in August?

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

Does it ever rain in Heraklion in August?

There are usually no days with some rain in Heraklion in August and the average monthly rainfall is 1mm.

Heraklion August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:28 19:23
Saturday, 16th August 2025 05:40 19:07
Sunday, 31st August 2025 05:51 18:48

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