Syros weather in January 2026

Q: How warm is it in Syros in January?

Daytime temperatures usually reach 13°C in Ermoupolis, Syros in January, falling to 8°C at night.

Q: How sunny is it in Syros in January?

There are normally 4 hours of bright sunshine each day in Ermoupolis, Syros in January - that's 43% of daylight hours.

Q: How warm is the sea around Syros in January?

The average sea temperature around Ermoupolis, Syros in January is 15°C.

Q: Does it rain in Syros in January?

There are usually 10 days with some rain in Ermoupolis, Syros in January and the average monthly rainfall is 90mm.

Expect 13°C daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Syros in January based on long-term weather averages. There is usually 10 days with some rainfall and 90 mm of average monthly rainfall in January.

13
13°C max day temperature
4
4 hours of sunshine per day
10
10 days with some rainfall
8
8°C min night temperature
10
10 hours of daylight per day
0
No heat & humidity
90
90 mm of monthly rainfall
2
2 (Low) UV index
15
15°C sea temperature

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The January 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)

More about Greece

How warm is it in Syros in January?

Daytime temperatures usually reach 13°C in Ermoupolis, Syros in January, falling to 8°C at night.

How sunny is it in Syros in January?

There are normally 4 hours of bright sunshine each day in Ermoupolis, Syros in January - that's 43% of daylight hours.

How warm is the sea around Syros in January?

The average sea temperature around Ermoupolis, Syros in January is 15°C.

Does it rain in Syros in January?

There are usually 10 days with some rain in Ermoupolis, Syros in January and the average monthly rainfall is 90mm.

Syros January sunrise & sunset times

Browse the sunrise and sunset times for Syros in January 2026. 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.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec