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.

Wednesday
18th Feb
15

11

10

2
Thursday
19th Feb
17

12

10

4
Friday
20th Feb
18

14

4

3
Saturday
21st Feb
16

11

4

3
Sunday
22nd Feb
14

10

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 15°C, 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 42 kph from the north-west.

15
°C maximum temperature
11
°C minimum temperature
sunshine and showers
10
hours of sunshine
2
UV index (Low)
8
% chance of some rain
<2
mm of rainfall expected
15
°C wind chill
42
kph wind from NW

Galissas weather for Thursday 19th February 2026

Expect clear skies in Galissas, Syros with a maximum temperature of 17°C, maximum UV of 4 (Moderate) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 27 kph from the south-west.

17
°C maximum temperature
12
°C minimum temperature
clear skies
10
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
17
°C wind chill
27
kph wind from SW

Galissas weather for Friday 20th February 2026

Expect mostly cloudy with light rain in Galissas, Syros with a maximum temperature of 18°C, 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 30 kph from the south.

18
°C maximum temperature
14
°C 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
18
°C wind chill
30
kph wind from S

Galissas weather for Saturday 21st February 2026

Expect isolated thunderstorms in Galissas, Syros with a maximum temperature of 16°C, 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 31 kph from the north-west.

16
°C maximum temperature
11
°C 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
31
kph wind from NW

Galissas weather for Sunday 22nd February 2026

Expect broken clouds in Galissas, Syros with a maximum temperature of 14°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 32 kph from the north.