Portorož Weather & Climate: Best Time to Visit
Temperatures in Portorož, Slovenian Littoral (Primorska), Slovenia, vary greatly throughout the year. August is the hottest month at 28°C (82°F), while January is the coldest at 9°C (48°F).
The city has a wet climate, receiving around 1277 mm (50 in) of rainfall per year. November is the wettest month. Sunshine peaks in July, when the city sees around 10.6 hours of sunshine per day.
Monthly Temperature in Portorož
The climate in Portorož is known for significant temperature differences throughout the year, making the weather dynamic. On average, daytime temperatures range from a comfortable 28°C (82°F) in August to a chilly 9°C (48°F) in January.
Nighttime temperatures range from 22°C (72°F) in August to 5°C (41°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Portorož
Portorož has a notably wet climate with abundant precipitation, recording 1277 mm (50 in) of rainfall per year. The seasons in Portorož bring significant changes in precipitation. The wettest month, November, receives heavy rainfall, with an average of 177 mm (7 in) of precipitation. This rainfall is distributed across 13 rainy days.
In contrast, the driest month, July, experiences much less rainfall, totaling 55 mm (2.2 in) over 11 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Portorož Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Portorož
In Portorož, summer days are longer and more sunny, with daily sunshine hours peaking at 10.6 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 3.2 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Portorož by Month
The relative humidity is moderate throughout the year in Portorož.
The city experiences its highest humidity in January, reaching 67%. In July, the humidity drops to its lowest level at 50%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Portorož 3-Day Forecast
Check the conditions for any month of the year.
Best Time to Visit Portorož
Portorož's weather is most enjoyable during May, June, July and August, with comfortable temperatures from 21°C (69°F) to 28°C (82°F). The moderate conditions ensure pleasant weather for exploring the area. Expect varied weather during this period with rainfall between 55 mm (2.2 in) and 93 mm (3.7 in), providing a good balance of sunny and rainy days.The wettest months are October and November, when precipitation is at its highest. Seeking the perfect travel destination for this year? We've created a tool that suggests locations matching your desired weather. Let our weather planner guide your travel decisions.
