Galissas weather live forecast

Today's maximum temperature in Galissas is expected to be 70°F. Select a day from the live weather forecast for Galissas, Syros, Greece for more weather parameters.

Wednesday
29th Oct
70

64

11

4
Thursday
30th Oct
72

64

9

4
Friday
31st Oct
72

64

1

2
Saturday
1st Nov
72

66

1

3
Sunday
2nd Nov
72

64

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 70°F, maximum UV of 4 (Moderate) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 13 mph from the north.

70
°F maximum temperature
64
°F minimum temperature
clear skies
11
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
13
mph wind from N

Galissas weather for Thursday 30th October 2025

Expect scattered clouds in Galissas, Syros with a maximum temperature of 72°F, maximum UV of 4 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 11 mph from the north.

72
°F maximum temperature
64
°F minimum temperature
scattered clouds
9
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
72
°F wind chill
11
mph wind from N

Galissas weather for Friday 31st October 2025

Expect broken clouds in Galissas, Syros with a maximum temperature of 72°F, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 4 mph from the south-west.

72
°F maximum temperature
64
°F minimum temperature
broken clouds
1
hour of sunshine
2
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
4
mph wind from SW

Galissas weather for Saturday 1st November 2025

Expect broken clouds in Galissas, Syros with a maximum temperature of 72°F, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 12 mph from the north.

72
°F maximum temperature
66
°F minimum temperature
broken clouds
1
hour of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
72
°F wind chill
12
mph wind from N

Galissas weather for Sunday 2nd November 2025

Expect scattered clouds in Galissas, Syros with a maximum temperature of 72°F, maximum UV of 3 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 14 mph from the north.