Syros weather in April 2025

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

  • 18°C maximum daytime temperature in April in Syros (Ermoupolis)18
    18°C max day temperature
  • 8 hours of sunshine per day
  • 6 days with some rainfall in April in Syros (Ermoupolis)6
    6 days with some rainfall
  • 12°C minimum night-time temperature in April in Syros (Ermoupolis)12
    12°C min night temperature
  • 13 hours of daylight per day in April in Syros (Ermoupolis)13
    13 hours of daylight per day
  • No heat & humidity in April in Syros (Ermoupolis)0
    No heat & humidity
  • 26 mm monthly rainfall in April in Syros (Ermoupolis)26
    26 mm of monthly rainfall
  • UV (maximum) index 6 (High) in April in Syros (Ermoupolis)6
    6 (High) UV index
  • 16°C sea temperature in April in Syros (Ermoupolis)16
    16°C sea temperature

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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)

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How hot is it in Syros in April?

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

How sunny is it in Syros in April?

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

How warm is the sea around Syros in April?

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

Does it rain in Syros in April?

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

Syros April sunrise & sunset times

Browse the sunrise and sunset times for Syros in April 2025. Select a month to view Syros sunrise and sunset times for the next 12 months. The Syros sunrise and sunset times shown below are for Ermoupolis.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st April 2025 06:06 18:43
Tuesday, 15th April 2025 05:45 18:56
Wednesday, 30th April 2025 05:26 19:09

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