Portoroz weather live forecast

Today's maximum temperature in Portoroz is expected to be 8°C. Select a day from the live weather forecast for Portoroz, Slovenia for more weather parameters.

Friday
26th Dec
8

2

9

1
Saturday
27th Dec
10

1

9

1
Sunday
28th Dec
11

1

9

1
Monday
29th Dec
8

0

9

1
Tuesday
30th Dec
8

1

6

0

5-day weather forecast updated at 04:02 on Thursday 25th December 2025 GMT

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The 5-day weather forecast for Slovenia (Portoroz) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Portoroz weather forecast by day

Below are the detailed weather forecasts for Portoroz for the next 5 days.

Portoroz weather for Friday 26th December 2025

Expect clear skies in Portoroz, Slovenia with a maximum temperature of 8°C, maximum UV of 1 (Low) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the north-east.

8
°C maximum temperature
2
°C minimum temperature
clear skies
9
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
5
°C wind chill
18
kph wind from NE

Portoroz weather for Saturday 27th December 2025

Expect clear skies in Portoroz, Slovenia with a maximum temperature of 10°C, maximum UV of 1 (Low) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the east.

10
°C maximum temperature
1
°C minimum temperature
clear skies
9
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
10
kph wind from E

Portoroz weather for Sunday 28th December 2025

Expect clear skies in Portoroz, Slovenia with a maximum temperature of 11°C, maximum UV of 1 (Low) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the east.

11
°C maximum temperature
1
°C minimum temperature
clear skies
9
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
11
°C wind chill
12
kph wind from E

Portoroz weather for Monday 29th December 2025

Expect clear skies in Portoroz, Slovenia with a maximum temperature of 8°C, maximum UV of 1 (Low) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the east.

8
°C maximum temperature
0
°C minimum temperature
clear skies
9
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
7
°C wind chill
8
kph wind from E

Portoroz weather for Tuesday 30th December 2025

Expect scattered clouds in Portoroz, Slovenia with a maximum temperature of 8°C and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the east.