Portoroz weather live forecast

Today's maximum temperature in Portoroz is expected to be 55°F. Select a day from the live weather forecast for Portoroz, Slovenia for more weather parameters.

Saturday
13th Dec
55

39

9

1
Sunday
14th Dec
55

37

9

1
Monday
15th Dec
54

37

3

1
Tuesday
16th Dec
54

41

1

1
Wednesday
17th Dec
55

46

2

0

5-day weather forecast updated at 04:02 on Friday 12th 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 Saturday 13th December 2025

Expect clear skies in Portoroz, Slovenia with a maximum temperature of 55°F, maximum UV of 1 (Low) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 6 mph from the south-east.

55
°F maximum temperature
39
°F minimum temperature
clear skies
9
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
6
mph wind from SE

Portoroz weather for Sunday 14th December 2025

55
°F maximum temperature
37
°F minimum temperature
clear skies
9
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
55
°F wind chill
5
mph wind from E

Portoroz weather for Monday 15th December 2025

Expect broken clouds in Portoroz, Slovenia with a maximum temperature of 54°F, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 4 mph from the south-east.

54
°F maximum temperature
37
°F minimum temperature
broken clouds
3
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
54
°F wind chill
4
mph wind from SE

Portoroz weather for Tuesday 16th December 2025

Expect broken clouds in Portoroz, Slovenia with a maximum temperature of 54°F, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 5 mph from the east.

54
°F maximum temperature
41
°F minimum temperature
broken clouds
1
hour of sunshine
1
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
5
mph wind from E

Portoroz weather for Wednesday 17th December 2025

Expect broken clouds in Portoroz, Slovenia with a maximum temperature of 55°F and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 5 mph from the east.