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July beach conditions — historical average

Excellent
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28.7°C Temp
24.7°C Sea temp
0.0 Rain days
13.7h Sunshine hrs
58.5% Humidity
100%

Reliable conditions

5 of 5 years were good

Year by year — mid July

2025 Excellent 29.6°C · 0 rainy days · 13.7h sun
2024 Excellent 29.6°C · 0 rainy days · 13.7h sun
2023 Excellent 30.6°C · 0 rainy days · 13.7h sun
2022 Excellent 25.9°C · 0 rainy days · 13.7h sun
2021 Excellent 27.7°C · 0 rainy days · 13.7h sun

Other months in Syros

May June July August September October

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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 Syros in July

Based on 5 years of ERA5 historical climate data, July in Syros has historically been excellent for a beach holiday. Average temperatures of 28.7°C with sea temperatures around 24.7°C and 0.0 rainy days on average.

5 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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