Galissas weather live forecast

Today's maximum temperature in Galissas is expected to be 29°C. Select a day from the live weather forecast for Galissas, Syros, Greece for more weather parameters.

Friday
7th Aug
29

27

14

9
Saturday
8th Aug
31

26

14

9
Sunday
9th Aug
30

26

14

9
Monday
10th Aug
30

25

14

9
Tuesday
11th Aug
30

25

14

9

5-day weather forecast updated at 04:02 on Friday 7th August 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 Friday 7th August 2026

Expect clear skies in Galissas, Syros with a maximum temperature of 29°C, low levels of heat & humidity, maximum UV of 9 (Very High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 24 kph from the north.

29
°C maximum temperature
27
°C minimum temperature
clear skies
14
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
24
kph wind from N

Galissas weather for Saturday 8th August 2026

Expect clear skies in Galissas, Syros with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 27 kph from the north.

31
°C maximum temperature
26
°C minimum temperature
clear skies
14
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
27
kph wind from N

Galissas weather for Sunday 9th August 2026

Expect clear skies in Galissas, Syros with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 35 kph from the north.