Galissas weather live forecast

Today's maximum temperature in Galissas is expected to be 15°C. Select a day from the live weather forecast for Galissas, Syros, Greece for more weather parameters.

Tuesday
16th Dec
15

11

7

2
Wednesday
17th Dec
16

14

8

2
Thursday
18th Dec
16

13

7

2
Friday
19th Dec
16

13

6

2
Saturday
20th Dec
16

13

0

2

5-day weather forecast updated at 04:02 on Tuesday 16th December 2025 GMT

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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 Tuesday 16th December 2025

Expect scattered clouds in Galissas, Syros with a maximum temperature of 15°C, maximum UV of 2 (Low) and 7 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
11
°C minimum temperature
scattered clouds
7
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
15
°C wind chill
32
kph wind from N

Galissas weather for Wednesday 17th December 2025

Expect scattered clouds in Galissas, Syros with a maximum temperature of 16°C, maximum UV of 2 (Low) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 29 kph from the north.

16
°C maximum temperature
14
°C minimum temperature
scattered clouds
8
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
16
°C wind chill
29
kph wind from N

Galissas weather for Thursday 18th December 2025

Expect scattered clouds in Galissas, Syros with a maximum temperature of 16°C, maximum UV of 2 (Low) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the north.

16
°C maximum temperature
13
°C minimum temperature
scattered clouds
7
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
16
°C wind chill
17
kph wind from N

Galissas weather for Friday 19th 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 light breeze of 11 kph from the north.

16
°C maximum temperature
13
°C minimum temperature
scattered clouds
6
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
16
°C wind chill
11
kph wind from N

Galissas weather for Saturday 20th December 2025

Expect broken clouds in Galissas, Syros with a maximum temperature of 16°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the north.