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August beach conditions — historical average

Excellent
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31.0°C Temp
27.2°C Sea temp
0.0 Rain days
13.0h Sunshine hrs
63.0% Humidity

Year by year — mid August

2025 Excellent 31.3°C · 0 rainy days · 13.0h sun
2024 Excellent 32.2°C · 0 rainy days · 13.0h sun
2023 Excellent 29.9°C · 0 rainy days · 13.0h sun
2022 Excellent 30.6°C · 0 rainy days · 13.0h sun
2021 Excellent 30.9°C · 0 rainy days · 13.0h sun

Other months in Kos

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Trip type

Each trip type is scored on what matters most for it — snow days for skiing, sea temp for beach, sunshine for sightseeing.

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About Kos in August

Based on 5 years of ERA5 historical climate data, August in Kos has historically been excellent for a beach holiday. Average temperatures of 31.0°C with sea temperatures around 27.2°C and 0.0 rainy days on average.

0 of the last 5 years had good beach conditions during this period. This data uses ERA5 reanalysis records — real historical measurements, not generalised averages.

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