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Portorose, Slovenia Weather Averages

July is the hottest month in Portorose with an average temperature of 24°C (74°F) and the coldest is January at 5°C (41°F). The wettest month is September with an average of 60mm of rain..

Average Temperature Portorose

What is Average Temperature?
The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month
What is Average Temperature?
The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month

Average High Low Temperature Portorose

What is Average High Low Temperature?
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily
What is Average High Low Temperature?
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily

Average Rainfall Portorose

What is Average Rainfall?
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years
What is Average Rainfall?
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years

Portorose : Next 24-Hour Weather

Today - 19th May 2026

Sunrise 05:30

Sunrise

Sunset 20:33

Sunset
14:00
Patchy rain possible
21°C (70°F)
15:00
Patchy rain possible
21°C (69°F)
16:00
Patchy rain possible
21°C (69°F)
17:00
Patchy rain possible
21°C (69°F)
18:00
Clear
20°C (68°F)
19:00
Patchy rain possible
19°C (65°F)
20:00
Clear
15°C (58°F)
21:00
Clear
13°C (55°F)
22:00
Clear
13°C (55°F)
23:00
Clear
13°C (54°F)

Tomorrow - 20th May 2026

Sunrise 05:30

Sunrise

Sunset 20:33

Sunset
0:00
Clear
12°C (54°F)
1:00
Clear
12°C (53°F)
2:00
Clear
12°C (53°F)
3:00
Clear
12°C (53°F)
4:00
Clear
12°C (52°F)
5:00
Partly cloudy
11°C (52°F)
6:00
Partly cloudy
11°C (52°F)
7:00
Partly cloudy
13°C (55°F)
8:00
Partly cloudy
17°C (62°F)
9:00
Partly cloudy
19°C (66°F)
10:00
Clear
21°C (69°F)
11:00
Clear
23°C (72°F)
12:00
Clear
24°C (75°F)
13:00
Clear
25°C (75°F)