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    The salt pans of Sečovlje with their earth banks and saltworkers' houses behind, in the nature park by the sea

    Slovenia in August is high season: averages of 20.8°C in Ljubljana and 22.5°C at Portorož, but also the wettest month at Rateče, Maribor and Murska Sobota because of storms. The 15th, Assumption Day, is a public holiday and Piran holds its Salt-makers' Festival. At the lakes, start early, or head east, where there are far fewer people.

    August weather (2001-2010 average)

    StationAverage temperatureRainfall
    Ljubljana20.8°C145 mm
    Maribor20.5°C141 mm
    Murska Sobota20.1°C114 mm
    Portorož (coast)22.5°C99 mm
    Rateče (Alps)16.3°C172 mm
    Kredarica (high mountains)7.0°C234 mm

    SURS, tables 0156101S and 0156102S.

    Slovenia in August: the quick answer

    Full read: 2 min

    • A 20.8°C average in Ljubljana and 22.5°C at Portorož.
    • The wettest month at Rateče, Maribor and Murska Sobota, because of storms.
    • 15 August, Assumption Day, is work-free.
    • To avoid queues, start early or head east.
    When I would go

    If August were my only option, I wouldn't give up on Slovenia: I'd change the map. Fewer days at Bled and more in the east, at Ptuj, Maribor and the spas, or in the Logar Valley, where August feels much more like June.

    What I would check before going

    My key points

    What the official sites leave out

    1. 01 Most beautiful

      Piran's salt, in festive mood

      Every August Piran holds the Salt-makers' Festival, according to the Tourist Board. The salt pans were founded in 804 and salt is still harvested by hand using a method about 700 years old.

      Sečovlje salt pans
    2. 02 My tip

      The east, your release valve

      In 2025 Bled had 499,659 tourist arrivals and Ptuj 68,444, according to SURS. In August, the east of the country, with Ptuj, Maribor and the Pannonian spas, is how you see Slovenia without queues.

      Ptuj
    3. 03 Getting there

      Summer storms

      The FCDO warns of violent storms, flash floods and forest fires in dry spells. In the Alps August is the wettest month, so check the forecast before any hike.

      is Slovenia safe

    August weather: heat and storms

    August leaves the capital at 20.8°C on the SURS series, 20.5°C in Maribor and 22.5°C at Portorož. The surprise is the rain. No other month brings as much rain to Rateče (172 mm), Maribor (141 mm) and Murska Sobota (114 mm), and Kredarica gets 234 mm. These are summer storms, and the FCDO warns of violent storms, flash floods and forest fires in dry periods. In the mountains I’d set off early and keep an eye on the forecast. What the FCDO says about the mountains is in is Slovenia safe.

    The coast and Piran’s salt

    For the sea, August is still excellent. The Tourist Board explains that Piran holds the Salt-makers’ Festival every August, tied to salt pans founded in 804 where salt is still harvested by hand. The Sečovlje Salina Nature Park, the country’s largest coastal wetland, lends free bikes at the entrance. If the heat gets to you, an afternoon in the salt pans is very pleasant. It’s all in the Sečovlje salt pans.

    The lakes, with a strategy

    Bled had 499,659 tourist arrivals in 2025 according to SURS, the third-highest figure in the country, and you feel it in August. My three tricks are arriving before nine, sleeping outside the town and using the free shuttle from Radovljica that the Tourist Board lists for July and August. On Vršič, the Tourist Board announced in May 2026 a regime of 90 paid spaces with shuttles from Kranjska Gora and Bovec, designed precisely for these weeks.

    To sleep close to everything, search places to stay in Ptuj on Expedia and filter by area before price.

    The east, where August stays quiet

    If you want Slovenia without the queues, look east. Ptuj, with 68,444 arrivals in 2025, has a castle, an old town and the country’s biggest artificial lake, with more than 230 bird species. Maribor has the world’s oldest vine in its Lent district, and the spas of the Pannonian plain are in full swing. For mountains without the Julian crowds, the Logar Valley under the Kamnik-Savinja peaks is another option. I’d start with Ptuj.

    Two dates on the calendar

    15 August, Assumption Day, is a work-free day according to the government, so expect closures. The 17th, the day the Prekmurje Slovenes were united with the nation, is a national holiday but a working day. If you’re travelling in the second half of the month, September is just round the corner, and it would be my first choice of the whole year, as I explain in Slovenia in September. If you’re still weighing up June, July and August, see Slovenia in summer.

    If you are short on time, see the best tours in Ptuj and pick one that fits your day.

    To sleep close to everything, search places to stay in Ptuj on Booking.com and filter by area before price.

    A track between wooden fences through the meadows of the Logar Valley, ringed by forest and Kamnik-Savinja Alps walls

    A track between wooden fences through the meadows of the Logar Valley, ringed by forest and Kamnik-Savinja Alps walls

    The small fishing harbour at Izola with moored boats, cars on the quay and colourful houses under a cloudy sky

    The small fishing harbour at Izola with moored boats, cars on the quay and colourful houses under a cloudy sky

    August dates

    DayWhatWorking day?
    15 AugustAssumption DayNo
    17 AugustUnification of Prekmurje Slovenes with the nationYes, a national holiday that's a working day
    During the monthSalt-makers' Festival, Piran2027 date not published in what I've read

    Government of Slovenia (holidays) and the Slovenian Tourist Board (Piran).

    Test yourself

    True or false?

    0/3 Pick before you peek.

    1. At Rateče in the Alps, August is the wettest month.

      See the answer

      True. The 2001-2010 average gives 172 mm in August, that station's yearly maximum.

    2. 17 August is a day off in Slovenia.

      See the answer

      False. It's a national holiday, for the unification of the Prekmurje Slovenes, but a working day according to the government.

    3. Piran's salt pans were founded in the 9th century.

      See the answer

      True. The Tourist Board gives 804 as the founding year.

    August average in Ljubljana
    20.8°C
    August average at Portorož
    22.5°C
    Piran's salt pans founded
    804

    Frequently asked questions

    What is the weather like in Slovenia in August?

    Hot, with storms. The 2001-2010 average was 20.8°C in Ljubljana, 22.5°C at Portorož and 16.3°C at Rateče, and at Rateče, Maribor and Murska Sobota it's the wettest month of the year.

    Is August a bad time to visit Slovenia?

    No, but it's the busiest month at the lakes and in the Julian Alps. I'd get to Bled early and spread some days east, where the pressure is much lower.

    Is 15 August a public holiday in Slovenia?

    Yes. Assumption Day is a work-free day according to the government. 17 August, the day of the unification of the Prekmurje Slovenes, is a national holiday but a working day.

    What can you do in Slovenia in August?

    The coast and Piran's salt pans, with the Salt-makers' Festival; rivers such as the Soča or the Kolpa; and the east, with Ptuj, Maribor and the spas. The Logar Valley in the Kamnik-Savinja Alps is another good shout.

    How can I avoid the crowds at Bled in August?

    Arrive early, stay outside the town, for example in Radovljica, and use the free shuttle the Tourist Board mentions between Radovljica and Bled in July and August.

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    Sergio Lepone

    Questions about Slovenia? Write to me

    I read every email. If a fact is wrong or missing, tell me and I will check it.

    My email sergiolepone@gmail.com

    Sergio Lepone

    By

    Tourism graduate with a master’s in Tourism Management and Planning from the University of Málaga, who has travelled across Europe. He writes every guide from official sources and his own judgement.

    Published on . Updated on . Facts checked on .

    How I check every fact and where it comes from

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    Photos: Jan Sobotka (CC BY 4.0); Jernej Furman from Maribor, Slovenia (CC BY 2.0); Jakub Hałun (CC BY 4.0), via Wikimedia Commons.