Galissas weather live forecast

Tomorrow's maximum temperature in Galissas is expected to be 33°C.

Friday
27th Jun

33

29

15
Saturday
28th Jun

32

26

14
Sunday
29th Jun

28

25

14
Monday
30th Jun

29

24

15
Tuesday
1st Jul

30

25

15

5-day weather forecast updated at 04:02 on Friday 27th June 2025 GMT

More about Galissas

Galissas by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Syros

TUI: up to 8% off holidays booked online

Sale

Book online with TUI & save up to 8% on holidays
FREE child places available for select holidays
Pay £0 deposits with direct debit & spread the cost

Go to TUI deal >>

View all TUI offers

TUI deal finder

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 Friday 27th June 2025

Expect clear skies in Galissas, Syros with a maximum temperature of 33°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 moderate breeze of 28 kph from the north.

33
°C maximum temperature
29
°C minimum temperature
clear skies
15
hours of sunshine
10
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
28
kph wind from N

Galissas weather for Saturday 28th June 2025

Expect clear skies in Galissas, Syros with a maximum temperature of 32°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 34 kph from the north.

32
°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
34
kph wind from N

Galissas weather for Sunday 29th June 2025

Expect clear skies in Galissas, Syros with a maximum temperature of 28°C, low 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 strong breeze of 42 kph from the north.

28
°C maximum temperature
25
°C minimum temperature
clear skies
14
hours of sunshine
10
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
42
kph wind from N

Galissas weather for Monday 30th June 2025

Expect clear skies in Galissas, Syros with a maximum temperature of 29°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 37 kph from the north.

29
°C maximum temperature
24
°C minimum temperature
clear skies
15
hours of sunshine
10
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
37
kph wind from N

Galissas weather for Tuesday 1st July 2025

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 15 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 30 kph from the north.