Portorož weather in May (Carinthia, Slovenia)

Curious about the May weather in Portorož? This guide provides all the details you need.

In Portorož, May is characterized by pleasant temperatures and moderate rainfall. Daytime temperatures hover around 21°C, while nights can cool down to about 15°C.

Portorož in May usually receives moderate rainfall, averaging around 93 mm for the month. When we look at the climate data from the last 30 years, we can expect around 14 days of rain.

With around 256 hours of sunshine, the days are mostly sunny. It gives a pleasant and vibrant feel to the area.

If you're inclined towards comfortable temperatures and drier conditions, May is a prime time to visit Portorož. May, June, July and August typically offer the best circumstances. While January, February and December tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Portorož climate page with graphs.

 

Portorož, monthly averages in May

Min Temperature 15°C  
Max Temperature 21°C  
Chance of Rain 46%  
Precipitation 93 mm  
Rainy days 14 days  
Humidity 54%  
Sunshine 256 hours  
Percentage Sunshine  

Where to go in Slovenia in May

Find out more about the weather in Slovenia in May and which places have the best weather conditions in this month.

Map not visible? Whoops sorry! Please refresh the page.
Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in Portorož in May?

For visitors traveling to Portorož, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in May.

Cycling
9/10
Walking
9/10
Barbeque
8/10
Camping
8/10
Outdoor sports
9/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Portorož.

Our site offers climate and forecast data for every country in the world. Are you going to Slovenia? On this website you can find historical weather averages for many cities in Slovenia. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.