Galissas weather live forecast

Today's maximum temperature in Galissas is expected to be 27°C. Select a day from the live weather forecast for Galissas, Syros, Greece for more weather parameters.

Sunday
28th Jun
27

25

15

10
Monday
29th Jun
29

24

11

10
Tuesday
30th Jun
30

24

14

10
Wednesday
1st Jul
29

23

14

10
Thursday
2nd Jul
29

23

15

10

5-day weather forecast updated at 04:02 on Saturday 27th June 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 Sunday 28th June 2026

Expect clear skies in Galissas, Syros with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 10 (Very High) and 15 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 35 kph from the north.

27
°C maximum temperature
25
°C minimum temperature
clear skies
15
hours of sunshine
10
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
35
kph wind from N

Galissas weather for Monday 29th June 2026

Expect scattered clouds in Galissas, Syros with a maximum temperature of 29°C, low levels of heat & humidity, maximum UV of 10 (Very High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the north.

29
°C maximum temperature
24
°C minimum temperature
scattered clouds
11
hours of sunshine
10
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
22
kph wind from N

Galissas weather for Tuesday 30th June 2026

Expect clear skies in Galissas, Syros with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the north-west.

30
°C maximum temperature
24
°C minimum temperature
clear skies
14
hours of sunshine
10
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
16
kph wind from NW

Galissas weather for Wednesday 1st July 2026

Expect clear skies in Galissas, Syros with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the north-west.

29
°C maximum temperature
23
°C minimum temperature
clear skies
14
hours of sunshine
10
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
12
kph wind from NW

Galissas weather for Thursday 2nd July 2026

Expect clear skies in Galissas, Syros with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 15 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the west.