Ermoupolis weather in May 2025

Expect 22°C daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in Ermoupolis in May. Check more long-term weather averages for Ermoupolis in May before you book your next holiday to Syros in 2025/2026.

  • 22°C maximum daytime temperature in May in Ermoupolis22
    22°C max day temperature
  • 10 hours of sunshine per day
  • 3 days with some rainfall in May in Ermoupolis3
    3 days with some rainfall
  • 15°C minimum night-time temperature in May in Ermoupolis15
    15°C min night temperature
  • 14 hours of daylight per day in May in Ermoupolis14
    14 hours of daylight per day
  • No heat & humidity in May in Ermoupolis0
    No heat & humidity
  • 16 mm monthly rainfall in May in Ermoupolis16
    16 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in May in Ermoupolis8
    8 (Very High) UV index
  • 18°C sea temperature in May in Ermoupolis18
    18°C sea temperature

More about Ermoupolis

Ermoupolis by month

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The May 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)

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How hot is it in Ermoupolis in May?

Daytime temperatures usually reach 22°C in Ermoupolis in May, falling to 15°C at night.

How sunny is it in Ermoupolis in May?

There are normally 10 hours of bright sunshine each day in Ermoupolis in May - that's 73% of daylight hours.

How warm is the sea around Ermoupolis in May?

The average sea temperature around Ermoupolis in May is 18°C.

Does it ever rain in Ermoupolis in May?

There are usually 3 days with some rain in Ermoupolis in May and the average monthly rainfall is 16mm.

Ermoupolis May sunrise & sunset times

Browse the sunrise and sunset times for Ermoupolis in May 2025. Select a month to view Ermoupolis sunrise and sunset times for the next 12 months.


Date Sunrise times Sunset times
Thursday, 1st May 2025 05:25 19:10
Friday, 16th May 2025 05:10 19:23
Saturday, 31st May 2025 05:01 19:35

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