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Portorož Climate by Month

The graphs below provide an overview of the climate in Portorož (Carinthia), Slovenia. They present long-term patterns and averages of weather conditions over a 30-year period.

Average day and night temperature

The mean minimum and maximum temperatures over the year.

Monthly precipitation

The mean monthly precipitation over the year, including rain, snow, hail etc.

Forecast for Portorož

Fri   Nov 15
13°C | 4°C
NE 11 km/h
almost clear and no rain

almost clear and no rain

Sat   Nov 16
13°C | 4°C
NE 11 km/h
clear and no rain

clear and no rain

Sun   Nov 17
14°C | 4°C
SE 11 km/h
0.6 mm
broken clouds and slight rain

broken clouds and slight rain

The best time of year to visit Portorož in Slovenia

During the months of May, June and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:

  • Which months have the greatest rainfall in Portorož?
    Most rainfall (rainy season) is seen in September, October and November.
  • Which is the warmest month in Portorož?
    August has an average maximum temperature of 28°C and is the warmest month of the year.
  • Which is the coldest month in Portorož?
    The coldest month is January with an average maximum temperature of 9°C.
  • Which is the wettest month in Portorož?
    November tops the wettest month list with 177 mm of rainfall.
  • Which is the driest month in Portorož?
    July is the driest month with 55 mm of precipitation.
  • Which is the sunniest month in Portorož?
    July is the sunniest month with an average of 317 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.