Climate and average monthly weather in Portorož, Slovenia

What is the best time of year to go to Portorož in Slovenia? Here are some average weather facts we collected from our historical climate data:

  • During the month of May, June and September you are most likely to experience good weather with pleasant average temperatures that fall between 20 degrees Celsius (68°F) and 25 degrees Celsius (77°F).
  • On average, the warmest month is July.
  • On average, the coolest month is January.
  • November is the wettest month. This month should be avoided if you are not a big fan of rain.
  • February is the driest month.
Do these climate conditions match with when you want to go to Portorož in Slovenia? Find out where to stay here.

For more information, see the weather forecast and our average climate information (by month in graphs) in a beautiful overview below.

* Data from nearest weather station: Triest, Italy (19.5 KM).

Average minimum and maximum temperature over the year

The monthly mean minimum and maximum daily temperature. Show in Fahrenheit

Average min and max temperatures in Triest, Italy   Copyright © 2019 www.weather-and-climate.com
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Average monthly hours of sunshine over the year

This is the monthly total of sunhours

Average monthly sunhours in Triest, Italy   Copyright © 2019 www.weather-and-climate.com
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Average percent of sunshine over the year

This is the mean percent of sunhours during the day

Average percent of sunshine in Triest, Italy   Copyright © 2019 www.weather-and-climate.com
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Cheapest month to fly to Portorož

Average water temperature over the year

The monthly mean water temperature. Show in Fahrenheit

Average water temperatures in Triest, Italy   Copyright © 2019 www.weather-and-climate.com
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Average monthly precipitation over the year (rainfall, snow)

This is the mean monthly precipitation, including rain, snow, hail etc. Show in Inches

Average precipitation (rain/snow) in Triest, Italy   Copyright © 2019 www.weather-and-climate.com
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Average monthly rainy days over the year

This is the number of days each month with rain, snow, hail etc.

Average rainy days (rain/snow) in Triest, Italy   Copyright © 2019 www.weather-and-climate.com
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Average humidity over the year

This is the mean monthly relative humidity

Average relative humidity in Triest, Italy   Copyright © 2019 www.weather-and-climate.com
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Where to stay in Portorož

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