Ermoupolis weather in June 2025

Q: How hot is it in Ermoupolis in June?

Daytime temperatures usually reach 26°C in Ermoupolis in June with low heat and humidity, falling to 19°C at night.

Q: How sunny is it in Ermoupolis in June?

There are normally 13 hours of bright sunshine each day in Ermoupolis in June - that's 86% of daylight hours.

Q: How warm is the sea around Ermoupolis in June?

The average sea temperature around Ermoupolis in June is 22°C.

Q: Does it ever rain in Ermoupolis in June?

There is usually 1 day with some rain in Ermoupolis in June and the average monthly rainfall is 5mm.

Expect 79°F daytime maximum temperatures in the shade with on average 13 hours of sunshine per day in Ermoupolis in June. Check more long-term weather averages for Ermoupolis in June before you book your next holiday to Syros in 2025/2026.

79
79°F max day temperature
13
13 hours of sunshine per day
1
1 day with some rainfall
66
66°F min night temperature
15
15 hours of daylight per day
L
Low heat & humidity
0.2
0.2 inches of monthly rainfall
9
9 (Very High) UV index
72
72°F sea temperature

More about Ermoupolis

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The June weather guide for Syros, represented by Ermoupolis, (Ermoupolis) 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) | Imperial (°F)