Galissas weather live forecast

Today's maximum temperature in Galissas is expected to be 21°C. Select a day from the live weather forecast for Galissas, Syros, Greece for more weather parameters.

Wednesday
29th Oct
21

18

11

4
Thursday
30th Oct
22

18

9

4
Friday
31st Oct
22

18

1

2
Saturday
1st Nov
22

19

1

3
Sunday
2nd Nov
22

18

9

3

5-day weather forecast updated at 04:02 on Wednesday 29th October 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 Wednesday 29th October 2025

Expect clear skies in Galissas, Syros with a maximum temperature of 21°C, maximum UV of 4 (Moderate) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 21 kph from the north.

21
°C maximum temperature
18
°C minimum temperature
clear skies
11
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
21
kph wind from N

Galissas weather for Thursday 30th October 2025

Expect scattered clouds in Galissas, Syros with a maximum temperature of 22°C, maximum UV of 4 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the north.

22
°C maximum temperature
18
°C minimum temperature
scattered clouds
9
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
22
°C wind chill
17
kph wind from N

Galissas weather for Friday 31st October 2025

Expect broken clouds in Galissas, Syros with a maximum temperature of 22°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the south-west.

22
°C maximum temperature
18
°C minimum temperature
broken clouds
1
hour of sunshine
2
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
7
kph wind from SW

Galissas weather for Saturday 1st November 2025

Expect broken clouds in Galissas, Syros with a maximum temperature of 22°C, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the north.

22
°C maximum temperature
19
°C minimum temperature
broken clouds
1
hour of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
22
°C wind chill
20
kph wind from N

Galissas weather for Sunday 2nd November 2025

Expect scattered clouds in Galissas, Syros with a maximum temperature of 22°C, maximum UV of 3 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the north.