Climate Insights for Portorož Airport

The climate in Portorož Airport is temperate. The average annual temperature is 16°C and approximately 1205mm of precipitation falls per year. Portorož Airport receives a notable amount of rainfall throughout the year, including during its driest month. Portorož Airport is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are January, February, December, when temperatures can drop to 7°C.

Portorož Airport sees moderate temperature variation throughout the year, ranging from 7°C to 27°C. The warmest month is August, when average highs reach 27°C and the mean temperature sits around 25°C. January is the coolest month, with minimum temperatures around 7°C and an average of 8°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows. The sharpest temperature change occurs between May and June, with a 5°C shift in average temperatures.

Portorož Airport is a fairly wet location, receiving approximately 1205mm of precipitation annually, which averages out to around 100mm per month. The wettest month is September, averaging 182mm of rainfall. November and October also tend to see above-average precipitation. The driest month is July, with just 46mm. That's 135mm less than September, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.

Portorož Airport is mildly breezy, with an average annual wind speed of 14km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is November, averaging 16km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 12km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 4km/h between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 14km/h in winter, 14km/h in spring, 12km/h in summer, 15km/h in autumn.

It is currently autumn in Portorož Airport, which began on September 23, 2026. Portorož Airport is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 27°C, while the coldest stretch bottoms out in January near 7°C. Winter is next, beginning on December 21, 2026 (87 days from now).

The best time to visit Portorož Airport is during June, when the weather is most comfortable for travellers. During these months, average temperatures hover around 23°C with modest rainfall averaging 62mm per month. By contrast, August can be uncomfortably hot with highs reaching 27°C, while January is the coldest period with lows dropping to 7°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Portorož Airport based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.