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Koper weather in May (Slovenia)

How is the weather in Koper in May? Wondering if it's the right time to visit? Browse this page for a comprehensive overview of the weather conditions for that month.

In May, Koper generally has pleasant temperatures and high rainfall. Anticipate daytime temperatures around 21°C, while night temperatures can drop to 14°C.

Koper in May usually receives high rainfall, averaging around 109 mm for the month. Delving into the climate records from the past 30 years, one can predict that nearly 14 days of the month will see rainfall.

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

If your ideal day consists of dry skies and moderate temperatures June, July and August generally stand out with 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 Koper climate page with graphs.

 

Koper, monthly averages in May

Min TemperatureMin Temperature 14°C  
Max TemperatureMax Temperature 21°C  
Chance of RainChance of Rain 47%  
PrecipitationPrecipitation 109 mm  
Rainy daysRainy days 14 days  
HumidityHumidity 54% *  
SunshineSunshine 256 hours *  
Percentage SunshinePercentage Sunshine *  
* Data from: Portorož, Slovenia (11 KM, 7 Miles).

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 Koper in May?

For visitors traveling to Koper, 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
Camping
6/10
Outdoor sports
9/10

Interested in more climate information?

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

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.