Portoroz weather live forecast

Today's maximum temperature in Portoroz is expected to be 52°F. Select a day from the live weather forecast for Portoroz, Slovenia for more weather parameters.

Monday
15th Dec
52

37

2

1
Tuesday
16th Dec
54

43

1

1
Wednesday
17th Dec
55

46

1

1
Thursday
18th Dec
55

46

1

0
Friday
19th Dec
55

46

1

0

5-day weather forecast updated at 04:02 on Monday 15th 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 Monday 15th December 2025

Expect broken clouds in Portoroz, Slovenia with a maximum temperature of 52°F, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 4 mph from the south-east.

52
°F maximum temperature
37
°F minimum temperature
broken clouds
2
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
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
43
°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 mostly cloudy with rain in Portoroz, Slovenia with a maximum temperature of 55°F, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 79% chance of some rain and a light breeze of 5 mph from the east.

55
°F maximum temperature
46
°F minimum temperature
mostly cloudy with rain
1
hour of sunshine
1
UV index (Low)
79
% chance of some rain
<10
mm of rainfall expected
55
°F wind chill
5
mph wind from E

Portoroz weather for Thursday 18th December 2025

Expect broken clouds in Portoroz, Slovenia with a maximum temperature of 55°F and 1 hour of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 4 mph from the south.

55
°F maximum temperature
46
°F minimum temperature
broken clouds
1
hour of sunshine
0
UV index (None)
0
mm of rainfall expected
0
no heat & humidity
4
mph wind from S

Portoroz weather for Friday 19th December 2025

Expect fog in low lying areas in Portoroz, Slovenia with a maximum temperature of 55°F and 1 hour of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 3 mph from the south-east.