Greece weather in August 2025

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

  • 31°C maximum daytime temperature in August in Greece (Athens)31
    31°C max day temperature
  • 11 hours of sunshine per day
  • 2 days with some rainfall in August in Greece (Athens)2
    2 days with some rainfall
  • 21°C minimum night-time temperature in August in Greece (Athens)21
    21°C min night temperature
  • 14 hours of daylight per day in August in Greece (Athens)14
    14 hours of daylight per day
  • High heat & humidity in August in Greece (Athens)H
    High heat & humidity
  • 6 mm monthly rainfall in August in Greece (Athens)6
    6 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in August in Greece (Athens)9
    9 (Very High) UV index
  • 26°C sea temperature in August in Greece (Athens)26
    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.

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Metric (°C / mm)  |  Imperial (°F / inches)

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More about Greece

How hot is it in Greece in August?

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

How sunny is it in Greece in August?

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

How warm is the sea around Greece in August?

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

Does it ever rain in Greece in August?

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

Greece August sunrise & sunset times

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

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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