Galissas weather live forecast

Today's maximum temperature in Galissas is expected to be 16°C. Select a day from the live weather forecast for Galissas, Syros, Greece for more weather parameters.

Saturday
13th Dec
16

14

6

2
Sunday
14th Dec
15

13

5

2
Monday
15th Dec
15

13

9

2
Tuesday
16th Dec
16

13

9

2
Wednesday
17th Dec
16

13

2

2

5-day weather forecast updated at 04:04 on Friday 12th December 2025 GMT

More about Galissas

Galissas by month

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

Recommended for Syros

TUI: up to 7% off holidays booked online

Sale

Book online with TUI & save up to 7% on holidays
FREE child places available for select holidays
Pay £0 deposits with direct debit & spread the cost

Go to TUI deal >>

View all TUI offers

TUI deal finder

Destination

The 5-day weather forecast for Syros, represented by Galissas, (Galissas) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Galissas weather forecast by day

Below are the detailed weather forecasts for Galissas for the next 5 days.

Galissas weather for Saturday 13th December 2025

Expect scattered clouds in Galissas, Syros with a maximum temperature of 16°C, maximum UV of 2 (Low) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 32 kph from the north.

16
°C maximum temperature
14
°C minimum temperature
scattered clouds
6
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
16
°C wind chill
32
kph wind from N

Galissas weather for Sunday 14th December 2025

Expect broken clouds in Galissas, Syros with a maximum temperature of 15°C, maximum UV of 2 (Low) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 32 kph from the north.

15
°C maximum temperature
13
°C minimum temperature
broken clouds
5
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
32
kph wind from N

Galissas weather for Monday 15th December 2025

Expect scattered clouds in Galissas, Syros with a maximum temperature of 15°C, maximum UV of 2 (Low) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 35 kph from the north.

15
°C maximum temperature
13
°C minimum temperature
scattered clouds
9
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
35
kph wind from N

Galissas weather for Tuesday 16th December 2025

Expect scattered clouds in Galissas, Syros with a maximum temperature of 16°C, maximum UV of 2 (Low) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 31 kph from the north.

16
°C maximum temperature
13
°C minimum temperature
scattered clouds
9
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
16
°C wind chill
31
kph wind from N

Galissas weather for Wednesday 17th December 2025

Expect broken clouds in Galissas, Syros with a maximum temperature of 16°C, maximum UV of 2 (Low) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 23 kph from the north.