Syros weather

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The weather guide for Syros shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by MeteoBlue. Find out more about our data sources.

Which is the hottest month in Syros?

The hottest time of year in Ermoupolis, Syros is normally July. Expect maximum daytime temperatures to reach 28°C with moderate heat and humidity.

Which month has the most rain in Syros?

In terms of rainfall, December is usually the wettest month in Ermoupolis, Syros with 91mm on average. There are normally 11 days in December with some rain.

When is it sunniest in Syros?

The sunniest time of year in Ermoupolis, Syros is normally July with bright sunshine on average for 93% of daylight hours; that's 14 hours of sunshine per day.

When is the sea warmest in Syros?

The sea is usually at its warmest in Ermoupolis, Syros in August when the water temperature reaches 24°C.

Metric (°C / mm)  |  Imperial (°F / inches)

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Compare Syros weather with the USA

Below the Syros weather chart shows average maximum daytime temperature for Syros, Greece (Ermoupolis) and the USA (Washington).

Maximum daytime temperature (°C)

Syros, Greece (Ermoupolis)
USA (Washington)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C / mm)  |  Imperial (°F / inches)

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