Galissas weather live forecast

Today's maximum temperature in Galissas is expected to be 59°F. Select a day from the live weather forecast for Galissas, Syros, Greece for more weather parameters.

Wednesday
18th Feb
59

52

10

2
Thursday
19th Feb
63

54

10

4
Friday
20th Feb
64

57

4

3
Saturday
21st Feb
61

52

4

3
Sunday
22nd Feb
57

50

5

3

5-day weather forecast updated at 04:04 on Wednesday 18th February 2026 GMT

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Recommended for Syros

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 18th February 2026

Expect sunshine and showers in Galissas, Syros with a maximum temperature of 59°F, maximum UV of 2 (Low) and 10 hours of bright sunshine. There are 0-2 mm of rainfall expected with 8% chance of some rain and a strong breeze of 26 mph from the north-west.

59
°F maximum temperature
52
°F minimum temperature
sunshine and showers
10
hours of sunshine
2
UV index (Low)
8
% chance of some rain
<2
mm of rainfall expected
59
°F wind chill
26
mph wind from NW

Galissas weather for Thursday 19th February 2026

Expect clear skies in Galissas, Syros with a maximum temperature of 63°F, maximum UV of 4 (Moderate) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 17 mph from the south-west.

63
°F maximum temperature
54
°F minimum temperature
clear skies
10
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
63
°F wind chill
17
mph wind from SW

Galissas weather for Friday 20th February 2026

Expect mostly cloudy with light rain in Galissas, Syros with a maximum temperature of 64°F, maximum UV of 3 (Moderate) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 66% chance of some rain and a fresh breeze of 19 mph from the south.

64
°F maximum temperature
57
°F minimum temperature
mostly cloudy with light rain
4
hours of sunshine
3
UV index (Moderate)
66
% chance of some rain
<5
mm of rainfall expected
64
°F wind chill
19
mph wind from S

Galissas weather for Saturday 21st February 2026

Expect isolated thunderstorms in Galissas, Syros with a maximum temperature of 61°F, maximum UV of 3 (Moderate) and 4 hours of bright sunshine. There are 10-20 mm of rainfall expected with 62% chance of some rain and a fresh breeze of 19 mph from the north-west.

61
°F maximum temperature
52
°F minimum temperature
isolated thunderstorms
4
hours of sunshine
3
UV index (Moderate)
62
% chance of some rain
<20
mm of rainfall expected
0
no heat & humidity
19
mph wind from NW

Galissas weather for Sunday 22nd February 2026

Expect broken clouds in Galissas, Syros with a maximum temperature of 57°F, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 20 mph from the north.