Kos weather in August 2025

Expect 90°F daytime maximum temperatures in the shade with on average 13 hours of sunshine per day in Kos in August. Check more long-term weather averages for Kos in August before you book your next holiday to Kos in 2025/2026.

  • 90°F maximum daytime temperature in August in Kos (Kos Town)90
    90°F max day temperature
  • 13 hours of sunshine per day
  • 6 days with some rainfall in August in Kos (Kos Town)6
    6 days with some rainfall
  • 70°F minimum night-time temperature in August in Kos (Kos Town)70
    70°F min night temperature
  • 14 hours of daylight per day in August in Kos (Kos Town)14
    14 hours of daylight per day
  • High heat & humidity in August in Kos (Kos Town)H
    High heat & humidity
  • 0.2 inches monthly rainfall in August in Kos (Kos Town)0.2
    0.2 inches of monthly rainfall
  • UV (maximum) index 9 (Very High) in August in Kos (Kos Town)9
    9 (Very High) UV index
  • 77°F sea temperature in August in Kos (Kos Town)77
    77°F sea temperature

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The August weather guide for Kos (Kos Town) 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.

Top Kos destinations

Below are average maximum temperatures at popular countries, regions and places in Kos in August. Select a holiday destination to see more weather parameters.

All Kos destinations

Metric (°C)  |  Imperial (°F)

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How hot is it in Kos in August?

Daytime temperatures usually reach 90°F in Kos Town, Kos in August with high heat and humidity, falling to 70°F at night.

How sunny is it in Kos in August?

There are normally 13 hours of bright sunshine each day in Kos Town, Kos in August - that's 96% of daylight hours.

How warm is the sea around Kos in August?

The average sea temperature around Kos Town, Kos in August is 77°F.

Does it rain in Kos in August?

There are usually 6 days with some rain in Kos Town, Kos in August and the average monthly rainfall is 0.2 inches.

Kos August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:16 19:18
Saturday, 16th August 2025 05:29 19:01
Sunday, 31st August 2025 05:41 18:41

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