Galissas weather live forecast

Today's maximum temperature in Galissas is expected to be 28°C. Select a day from the live weather forecast for Galissas, Syros, Greece for more weather parameters.

Friday
11th Sep
28

24

13

7
Saturday
12th Sep
29

24

13

7
Sunday
13th Sep
29

24

12

7
Monday
14th Sep
27

23

1

7
Tuesday
15th Sep
27

23

4

7

5-day weather forecast updated at 04:02 on Thursday 10th September 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 Friday 11th September 2026

Expect clear skies in Galissas, Syros with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 7 (High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the north.

28
°C maximum temperature
24
°C minimum temperature
clear skies
13
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
19
kph wind from N

Galissas weather for Saturday 12th September 2026

Expect clear skies in Galissas, Syros with a maximum temperature of 29°C, low levels of heat & humidity, maximum UV of 7 (High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the north.

29
°C maximum temperature
24
°C minimum temperature
clear skies
13
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
16
kph wind from N

Galissas weather for Sunday 13th September 2026

Expect clear skies in Galissas, Syros with a maximum temperature of 29°C, low levels of heat & humidity, maximum UV of 7 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the north.

29
°C maximum temperature
24
°C minimum temperature
clear skies
12
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
12
kph wind from N

Galissas weather for Monday 14th September 2026

Expect broken clouds in Galissas, Syros with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 7 (High) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the north.

27
°C maximum temperature
23
°C minimum temperature
broken clouds
1
hour of sunshine
7
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
15
kph wind from N

Galissas weather for Tuesday 15th September 2026

Expect broken clouds in Galissas, Syros with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 7 (High) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the north.