Portoroz weather live forecast

Today's maximum temperature in Portoroz is expected to be 29°C. Select a day from the live weather forecast for Portoroz, Slovenia for more weather parameters.

Monday
24th Aug
29

17

13

7
Tuesday
25th Aug
26

19

4

5
Wednesday
26th Aug
29

18

14

6
Thursday
27th Aug
31

19

11

6
Friday
28th Aug
32

20

7

6

5-day weather forecast updated at 04:01 on Sunday 23rd August 2026 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 24th August 2026

Expect clear skies in Portoroz, Slovenia with a maximum temperature of 29°C, low levels of heat & humidity, maximum UV of 7 (High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the east.

29
°C maximum temperature
17
°C minimum temperature
clear skies
13
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
11
kph wind from E

Portoroz weather for Tuesday 25th August 2026

Expect isolated thunderstorms in Portoroz, Slovenia with a maximum temperature of 26°C, maximum UV of 5 (Moderate) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 45% chance of some rain and a light breeze of 11 kph from the east.

26
°C maximum temperature
19
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
5
UV index (Moderate)
45
% chance of some rain
<10
mm of rainfall expected
26
°C wind chill
11
kph wind from E

Portoroz weather for Wednesday 26th August 2026

Expect clear skies in Portoroz, Slovenia with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 6 (High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the east.

29
°C maximum temperature
18
°C minimum temperature
clear skies
14
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
M
moderate heat & humidity
10
kph wind from E

Portoroz weather for Thursday 27th August 2026

Expect scattered clouds in Portoroz, Slovenia with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 6 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the north-east.

31
°C maximum temperature
19
°C minimum temperature
scattered clouds
11
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
M
moderate heat & humidity
10
kph wind from NE

Portoroz weather for Friday 28th August 2026

Expect scattered clouds in Portoroz, Slovenia with a maximum temperature of 32°C, moderate levels of heat & humidity, maximum UV of 6 (High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the south-west.