Portoroz weather live forecast

Today's maximum temperature in Portoroz is expected to be 17°C. Select a day from the live weather forecast for Portoroz, Slovenia for more weather parameters.

Wednesday
25th Mar
17

5

9

4
Thursday
26th Mar
11

5

0

2
Friday
27th Mar
12

6

2

2
Saturday
28th Mar
15

6

12

4
Sunday
29th Mar
17

6

5

4

5-day weather forecast updated at 04:01 on Wednesday 25th March 2026 GMT

More about Portoroz

Portoroz by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Slovenia

TUI: Top deals & discounts on 2026/2027 holidays

Sale

Explore latest special offers & online deals from TUI
Free child places & £0 deposits with direct debit available
Book summer & winter sun holidays in 2026/2027

Go to TUI deal >>

View all TUI offers

TUI deal finder

Destination

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 Wednesday 25th March 2026

Expect scattered clouds in Portoroz, Slovenia with a maximum temperature of 17°C, maximum UV of 4 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the south-east.

17
°C maximum temperature
5
°C minimum temperature
scattered clouds
9
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
17
°C wind chill
19
kph wind from SE

Portoroz weather for Thursday 26th March 2026

Expect cloudy with some rain in Portoroz, Slovenia with a maximum temperature of 11°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 20-30 mm of rainfall expected with 49% chance of some rain and a moderate breeze of 26 kph from the north-east.

11
°C maximum temperature
5
°C minimum temperature
cloudy with some rain
0
hours of sunshine
2
UV index (Low)
49
% chance of some rain
<30
mm of rainfall expected
11
°C wind chill
26
kph wind from NE

Portoroz weather for Friday 27th March 2026

Expect broken clouds in Portoroz, Slovenia with a maximum temperature of 12°C, maximum UV of 2 (Low) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the north.

12
°C maximum temperature
6
°C minimum temperature
broken clouds
2
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
12
°C wind chill
22
kph wind from N

Portoroz weather for Saturday 28th March 2026

Expect clear skies in Portoroz, Slovenia with a maximum temperature of 15°C, maximum UV of 4 (Moderate) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the north.

15
°C maximum temperature
6
°C minimum temperature
clear skies
12
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
13
kph wind from N

Portoroz weather for Sunday 29th March 2026

Expect broken clouds in Portoroz, Slovenia with a maximum temperature of 17°C, maximum UV of 4 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the east.