Galissas weather live forecast

Today's maximum temperature in Galissas is expected to be 72°F. Select a day from the live weather forecast for Galissas, Syros, Greece for more weather parameters.

Tuesday
13th Oct
72

64

1

3
Wednesday
14th Oct
68

63

2

3
Thursday
15th Oct
66

61

4

4
Friday
16th Oct
68

61

8

4
Saturday
17th Oct
64

59

6

2

5-day weather forecast updated at 04:01 on Tuesday 13th October 2026 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 13th October 2026

Expect isolated thunderstorms in Galissas, Syros with a maximum temperature of 72°F, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 10-20 mm of rainfall expected with 99% chance of some rain and a moderate breeze of 16 mph from the south.

72
°F maximum temperature
64
°F minimum temperature
isolated thunderstorms
1
hour of sunshine
3
UV index (Moderate)
99
% chance of some rain
<20
mm of rainfall expected
0
no heat & humidity
16
mph wind from S

Galissas weather for Wednesday 14th October 2026

Expect isolated thunderstorms in Galissas, Syros with a maximum temperature of 68°F, maximum UV of 3 (Moderate) and 2 hours of bright sunshine. There are 10-20 mm of rainfall expected with 80% chance of some rain and a strong breeze of 30 mph from the north.

68
°F maximum temperature
63
°F minimum temperature
isolated thunderstorms
2
hours of sunshine
3
UV index (Moderate)
80
% chance of some rain
<20
mm of rainfall expected
68
°F wind chill
30
mph wind from N

Galissas weather for Thursday 15th October 2026

Expect broken clouds in Galissas, Syros with a maximum temperature of 66°F, maximum UV of 4 (Moderate) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a strong breeze of 30 mph from the north.

66
°F maximum temperature
61
°F minimum temperature
broken clouds
4
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
30
mph wind from N

Galissas weather for Friday 16th October 2026

Expect broken clouds in Galissas, Syros with a maximum temperature of 68°F, maximum UV of 4 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 19 mph from the north.

68
°F maximum temperature
61
°F minimum temperature
broken clouds
8
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
68
°F wind chill
19
mph wind from N

Galissas weather for Saturday 17th October 2026

Expect isolated thunderstorms in Galissas, Syros with a maximum temperature of 64°F, maximum UV of 2 (Low) and 6 hours of bright sunshine. There are 20-30 mm of rainfall expected with 64% chance of some rain and a moderate breeze of 16 mph from the north.