Athens weather in August 2025

Expect 31°C daytime maximum temperatures in the shade with on average 11 hours of sunshine per day in Athens in August. Check more long-term weather averages for Athens in August before you book your next holiday to Greece in 2025/2026.

  • 31°C maximum daytime temperature in August in Athens31
    31°C max day temperature
  • 11 hours of sunshine per day
  • 2 days with some rainfall in August in Athens2
    2 days with some rainfall
  • 21°C minimum night-time temperature in August in Athens21
    21°C min night temperature
  • 14 hours of daylight per day in August in Athens14
    14 hours of daylight per day
  • High heat & humidity in August in AthensH
    High heat & humidity
  • 6 mm monthly rainfall in August in Athens6
    6 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in August in Athens9
    9 (Very High) UV index
  • 26°C sea temperature in August in Athens26
    26°C sea temperature

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The August weather guide for Greece (Athens) 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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How hot is it in Athens in August?

Daytime temperatures usually reach 31°C in Athens in August with high heat and humidity, falling to 21°C at night.

How sunny is it in Athens in August?

There are normally 11 hours of bright sunshine each day in Athens in August - that's 84% of daylight hours.

How warm is the sea around Athens in August?

The average sea temperature around Athens in August is 26°C.

Does it ever rain in Athens in August?

There are usually 2 days with some rain in Athens in August and the average monthly rainfall is 6mm.

Athens August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:28 19:34
Saturday, 16th August 2025 05:41 19:17
Sunday, 31st August 2025 05:54 18:56

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