Portoroz weather live forecast

Today's maximum temperature in Portoroz is expected to be 7°C. Select a day from the live weather forecast for Portoroz, Slovenia for more weather parameters.

Thursday
1st Jan
7

0

3

1
Friday
2nd Jan
7

3

0

0
Saturday
3rd Jan
11

4

0

0
Sunday
4th Jan
10

2

0

0
Monday
5th Jan
5

-3

0

1

5-day weather forecast updated at 04:02 on Tuesday 30th 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 Thursday 1st January 2026

Expect mostly cloudy with light rain in Portoroz, Slovenia with a maximum temperature of 7°C, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 31% chance of some rain and a light breeze of 11 kph from the south-west.

7
°C maximum temperature
0
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
1
UV index (Low)
31
% chance of some rain
<2
mm of rainfall expected
5
°C wind chill
11
kph wind from SW

Portoroz weather for Friday 2nd January 2026

Expect broken clouds in Portoroz, Slovenia with a maximum temperature of 7°C and no hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the south.

7
°C maximum temperature
3
°C minimum temperature
broken clouds
0
hours of sunshine
0
UV index (None)
0
mm of rainfall expected
6
°C wind chill
7
kph wind from S

Portoroz weather for Saturday 3rd January 2026

Expect overcast with light rain in Portoroz, Slovenia with a maximum temperature of 11°C and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 71% chance of some rain and a gentle breeze of 18 kph from the south.

11
°C maximum temperature
4
°C minimum temperature
overcast with light rain
0
hours of sunshine
0
UV index (None)
71
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
18
kph wind from S

Portoroz weather for Sunday 4th January 2026

Expect cloudy with some rain in Portoroz, Slovenia with a maximum temperature of 10°C and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 80% chance of some rain and a gentle breeze of 19 kph from the south.

10
°C maximum temperature
2
°C minimum temperature
cloudy with some rain
0
hours of sunshine
0
UV index (None)
80
% chance of some rain
<20
mm of rainfall expected
7
°C wind chill
19
kph wind from S

Portoroz weather for Monday 5th January 2026

Expect cloudy with sleet or snow in Portoroz, Slovenia with a maximum temperature of 5°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 10-20 mm of sleet/snow expected with 57% chance of some sleet or snow and a gentle breeze of 18 kph from the north-east.