Ermoupolis weather in April 2025

Q: How hot is it in Ermoupolis in April?

Daytime temperatures usually reach 18°C in Ermoupolis in April, falling to 12°C at night.

Q: How sunny is it in Ermoupolis in April?

There are normally 8 hours of bright sunshine each day in Ermoupolis in April - that's 64% of daylight hours.

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

The average sea temperature around Ermoupolis in April is 16°C.

Q: Does it rain in Ermoupolis in April?

There are usually 6 days with some rain in Ermoupolis in April and the average monthly rainfall is 26mm.

Expect 18°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Ermoupolis in April. Check more long-term weather averages for Ermoupolis in April before you book your next holiday to Syros in 2025/2026.

18
18°C max day temperature
8
8 hours of sunshine per day
6
6 days with some rainfall
12
12°C min night temperature
13
13 hours of daylight per day
0
No heat & humidity
26
26 mm of monthly rainfall
6
6 (High) UV index
16
16°C sea temperature

More about Ermoupolis

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The April 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 / mm) | Imperial (°F / inches)