Piran weather in September (Slovenia)

What is the weather forecast for Piran in September? Check out our in-depth weather guide for this month.

Temperatures

The typical weather for September in Piran includes high temperatures and high rainfall. During the daylight hours, temperatures often reach 24°C. After dark they usually decrease to around 18°C.

Precipitation

Piran in September usually receives high rainfall, averaging around 155 mm for the month. Looking at the last 30 years, the data shows about 11 days with rain.

Average sunshine

Enjoy a sunny month with about 223 hours of sunshine, providing a cheerful and lively atmosphere.

If your ideal day consists of dry skies and moderate temperatures May, 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 Piran climate page with graphs.

 

Piran, monthly averages in September

Min Temperature 18°C  

Max Temperature 24°C  

Chance of Rain 36%  

Precipitation 155 mm  

Rainy days 11 days  

Humidity 57% *  

Sunshine 223 hours *  

Percentage Sunshine *  

Where to go in Slovenia in September

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

Weather conditions Weather

Temperatures

Precipitation

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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 this month?

For visitors traveling to Piran, 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.

Swimming

8/10

Camping

6/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Piran.

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 travel conditions. Find out where to go with our weather planner.