Galissas weather live forecast

Today's maximum temperature in Galissas is expected to be 25°C. Select a day from the live weather forecast for Galissas, Syros, Greece for more weather parameters.

Sunday
21st Sep
25

21

12

7
Monday
22nd Sep
25

21

11

6
Tuesday
23rd Sep
25

22

11

6
Wednesday
24th Sep
26

21

12

6
Thursday
25th Sep
26

22

12

6

5-day weather forecast updated at 04:02 on Sunday 21st September 2025 GMT

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Destination

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 21st September 2025

Expect clear skies in Galissas, Syros with a maximum temperature of 25°C, maximum UV of 7 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 33 kph from the north.

25
°C maximum temperature
21
°C minimum temperature
clear skies
12
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
25
°C wind chill
33
kph wind from N

Galissas weather for Monday 22nd September 2025

Expect clear skies in Galissas, Syros with a maximum temperature of 25°C, maximum UV of 6 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 25 kph from the north.

25
°C maximum temperature
21
°C minimum temperature
clear skies
11
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
25
°C wind chill
25
kph wind from N

Galissas weather for Tuesday 23rd September 2025

Expect clear skies in Galissas, Syros with a maximum temperature of 25°C, maximum UV of 6 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the north.

25
°C maximum temperature
22
°C minimum temperature
clear skies
11
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
14
kph wind from N

Galissas weather for Wednesday 24th September 2025

Expect clear skies in Galissas, Syros with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 6 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the north-west.

26
°C maximum temperature
21
°C minimum temperature
clear skies
12
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
14
kph wind from NW

Galissas weather for Thursday 25th September 2025

Expect clear skies in Galissas, Syros with a maximum temperature of 26°C, maximum UV of 6 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 31 kph from the north.