Slovenia in May is, to my mind, among the best of the year. The average climbs to 16.6°C in Ljubljana and 17.5°C at Portorož, Vintgar Gorge and Bled Castle are in season and the lakes haven't got July's crowds yet. 1 and 2 May are public holidays and the 20th is World Bee Day, a Slovenian initiative.
May weather (2001-2010 average)
| Station | Average temperature | Rainfall |
|---|---|---|
| Ljubljana | 16.6°C | 104 mm |
| Maribor | 16.6°C | 83 mm |
| Portorož (coast) | 17.5°C | 69 mm |
| Postojna (Karst) | 14.1°C | 122 mm |
| Rateče (Alps) | 12.4°C | 107 mm |
| Kredarica (high mountains) | 1.6°C | 143 mm |
SURS, tables 0156101S and 0156102S.
If you only read this
Full read: 2 min
- A 16.6°C average in Ljubljana and 17.5°C at Portorož.
- Holidays on 1 and 2 May; the 20th is World Bee Day.
- Vintgar and Bled Castle are in season.
- Fewer people at the lakes than in summer.
For a first trip, I'd choose May over August. Nearly everything is open, the days are already long and you can photograph the lakes without hunting for a gap in the crowd.
The practical bit
What I would keep in mind
-
01 Most beautiful
The land of bees
The Tourist Board points out that World Bee Day, 20 May, is tied to Anton Janša, a Slovenian beekeeper. In Radovljica, the Beekeeping Museum holds the largest collection of painted beehive panels.
Radovljica beekeeping museum -
02 To save money
Before summer, better prices
May isn't yet high season at the lakes, and you notice it in availability. With Vintgar open since April and Bled Castle until 8pm, going early costs you nothing.
where to stay in Bled -
03 My tip
The 1 and 2 May long weekend
Labour Day takes two work-free days, 1 and 2 May, according to the government. When they sit next to a weekend Slovenians head off, so I'd book early on the coast and at the lakes.
Slovenia public holidays
What the weather does in May
Official statistics for 2001 to 2010 give a May average of 16.6°C in both Ljubljana and Maribor, 17.5°C at Portorož and 12.4°C at Rateče, up in the Alps. It rains about as much as in April, 104 mm in the capital, so the waterproof stays in the bag. The big change from the previous month is higher up, as Kredarica’s average finally rises above zero, to 1.6°C. To see how the rest of the year goes, the full table is in Slovenia weather.
Lakes and gorges in May, no queues
By May Vintgar Gorge has been open for a month and Bled Castle is on its long hours, until 8pm. The lakes, Bled, Bohinj and Jasna, are lovely to walk round slowly, and it’s the month I’d take the photos that cost a battle in August. From Bohinj, Savica Falls drops 78 metres in two streams, and in the Soča Valley the gorges and waterfalls, such as Kozjak, are an easy walk away. The bigger lake and its valley are covered in Bohinj.
20 May, World Bee Day
Slovenia has a special relationship with bees, and the Tourist Board tells the story on its Radovljica page. World Bee Day, 20 May, is linked to Anton Janša, a Slovenian beekeeper, and in Radovljica’s old town, still ringed by its medieval moat, the Beekeeping Museum shows the painted panels that once decorated hives, the biggest such collection anywhere according to the Tourist Board. The museum is small, unusual museum, and for me it explains Slovenian country life better than many grander ones. «Sweet Radol’ca» rounds off the visit with honey, chocolate and lectar gingerbread. The museum has its own page, the Beekeeping Museum.
If you are staying the night, see the best hotel deals in Radovljica for your dates: the well-placed rooms go fast.
May holidays, two fixed and one moveable
1 and 2 May, Labour Day, are work-free days according to the government. Whit Sunday is too, but I won’t give you its 2027 date until I see it on the official calendar. On long weekends Slovenians head for the coast and the lakes, so I’d book accommodation with time to spare. Every holiday is listed in Slovenian public holidays.
How I’d make the most of May
A week by car or coach, with two nights in Ljubljana, two in Radovljica or Bled, one in the Soča Valley and two on the coast. That mix of quiet lakes and a coast that’s already pleasant is what makes May so good. What comes next, with the longest days of the year, is in Slovenia in June. The whole of spring, all three months, is summed up in Slovenia in spring.
So you do not lose the morning at the ticket office, browse tickets and tours in Radovljica on GetYourGuide.
If you are staying the night, see the best hotel deals in Radovljica for your dates: the well-placed rooms go fast.
Lake Bohinj from the top of Vogel, stretched out between wooded slopes and rock walls, with the Julian Alps peaks behind
The Kozjak waterfall falling into a narrow amphitheatre of grey rock and a green pool below, in the Soča valley
May dates
| What | When |
|---|---|
| Labour Day (work-free) | 1 and 2 May |
| World Bee Day | 20 May |
| Whit Sunday (work-free) | 2027 date pending the official calendar |
| Vintgar Gorge | Open (season April to October) |
Government of Slovenia, Slovenian Tourist Board (Radovljica) and Vintgar.
Test yourself
True or false?
0/3 Pick before you peek.
-
In May, Maribor and Ljubljana have the same average temperature.
See the answer
True. Both averaged 16.6°C in May between 2001 and 2010, according to official statistics.
-
2 May is a working day in Slovenia.
See the answer
False. Labour Day covers 1 and 2 May, both work-free according to the government.
-
In May, Kredarica's average finally rises above zero.
See the answer
True. It's the first month of the year with a positive average there, 1.6°C between 2001 and 2010.
- May average in Ljubljana
- 16.6°C
- May average at Portorož
- 17.5°C
- World Bee Day
- 20 May
Frequently asked questions
What is the weather like in Slovenia in May?
Pleasant. The 2001-2010 average was 16.6°C in Ljubljana and Maribor, 17.5°C at Portorož and 12.4°C at Rateče, with 104 mm of rain in the capital.
Is May a good time to visit Slovenia?
Very much so. It's one of the best months for a first trip, with Vintgar and Bled Castle in season and none of the summer crowds. The high mountains, averaging 1.6°C at Kredarica, still aren't for everyone.
Are there public holidays in Slovenia in May?
1 and 2 May, Labour Day, are work-free. So is Whit Sunday, but I won't give its 2027 date until I see it on the official calendar.
What is World Bee Day?
It's held on 20 May, and the Tourist Board links it to Anton Janša, the Slovenian beekeeper. Radovljica, with its Beekeeping Museum, is the place to understand why.
Can you swim in Slovenia's lakes in May?
I don't have an official water temperature, so I can't promise. What I do know is that the air at Rateče in the Alps averages about 12.4°C, so I wouldn't count on long swims.
0 of 425 Slovenia guides
Your next stamp
- In June
- In spring
- In September
- Weather
- In summer
- In August
- In July
- In January
- Bogenšperk Castle
- Bogojina
- Debeli rtič
- Ig pile dwellings
- Jeruzalem
- Kolpa River
- Koper
- Lake Cerknica
- Lipica
- Ljubljana
- Ljubljana to Bled
- Mariborsko Pohorje
- Mount Snežnik
- Palace Portorož
- Park of Military History
- Plečnik House
- Postojna
- Postojna Cave
- Škocjan Caves
- Štanjel
- Tartini Square
- Trbovlje
- Županova jama
- Izola
- Kamnik
- Karst
- Ljubljana to Postojna
- Lovrenc Lakes
- Maribor
- Portorož
- Predjama Castle
- Things to do in Ljubljana
- Travel guide
- Vilenica Cave
- Zagorje ob Savi
- Celje
- Cerknica
- Domžale
- Hrastnik
- Ljubljana in a day
- Ljubljana to Piran
- Piran
- Slovenian Istria
- Strunjan
- Things to do
- Activities
- Ankaran
- Grosuplje
- Litija
- Ljubljana in two days
- Pivka
- Sečovlje salt pans
- Velenje
- Brežice Castle
- Getting around Ljubljana
- Ilirska Bistrica
- Mežica Mine
- Most beautiful places
- Novo mesto
- Sevnica Castle
- Terme Olimia
- Vrhnika
- Žiče Charterhouse
- Dolenjska
- Ig
- Prettiest villages
- Ptuj
- Sežana
- Divača
- Medvode
- Murska Sobota
- Posavje
- World Heritage
- Hrpelje-Kozina
- Logatec
- Map
- Mengeš
- Brezovica
- Komen
- Savinjska
- Where is Slovenia
- Bled
- Brežice
- Čatež ob Savi
- Celje Castle
- Coal Mining Museum
- Gorenjska
- Hotels in Piran
- Hrastovlje
- Karawanken Geopark
- Koroška
- Kostanjevica Cave
- Kostel Castle
- Krokar primeval forest
- Kurentovanje
- Lent
- Ljubljana Castle
- Ljubljana Cathedral
- Logar Valley
- Oldest vine in the world
- Olimje
- Otočec
- Regions
- Rimske Toplice
- Rinka Waterfall
- Rogla
- Sava River
- Slovenj Gradec
- Topolšica
- Velika Planina
- Goriška
- Krško
- Lake Bled
- Municipalities
- Podravje
- Prešeren Square
- Ravne na Koroškem
- Restaurants in Piran
- Škocjan Inlet
- Volčji Potok Arboretum
- Bled Island
- Cities
- Mežica
- Pomurje
- Sevnica
- Socerb Castle
- Bled Castle
- Coast and Karst
- Dravograd
- Kostanjevica na Krki
- Population
- Notranjska
- Ojstrica viewpoint
- Radlje ob Dravi
- Size
- Central Slovenia
- Language
- Mislinja
- Plečnik's Ljubljana
- Slovenska Bistrica
- Vila Bled
- Currency
- Grand Hotel Toplice
- Ormož
- Zasavje
- EU and Schengen
- Hotel Savica Garni
- Hotels in Bled
- Pohorje
- Haloze
- History
- Restaurants in Bled
- Flag and symbols
- Hoče-Slivnica
- Bizeljsko
- Bohinj
- Christmas in Ljubljana
- City Hotel Ljubljana
- Gorjanci
- Kranj
- Krka River
- Laško
- Moravske Toplice
- Ptuj Castle
- Public holidays
- Rajhenburg Castle
- Šentilj
- Slovenia beaches
- Šmartno pri Litiji
- Uršlja Gora
- Brdo Castle
- Independence Day
- Lake Bohinj
- Ljubljana Festival
- Radenci
- Rogaška Slatina
- Day trips from Ljubljana
- Jesenice
- Lendava
- Podčetrtek
- Savica waterfall
- Time zone
- Dobrna
- Facts
- Ljubljana nightlife
- Ljutomer
- Nova Gorica
- Vogel
- Bohinjska Bistrica
- Gornja Radgona
- Ljubljana Old Town
- Slovenia and Croatia
- Solkan
- Zreče
- Grad
- Sabotin
- Slovenia, Italy and Austria
- Slovenske Konjice
- Stara Fužina
- Trnovo
- Goričko
- Holidays and tours
- Hotels in Bohinj
- Škofja Loka
- Vitanje
- Škofja Loka Castle
- Slovenia or Slovakia
- Šoštanj
- Veržej
- Slovenian phrases
- Slovenia in 3 days
- Bela krajina
- Caves in Slovenia
- Črnomelj
- Dragon Bridge
- Gorje
- Hiking
- Hotels in Maribor
- Kozjansko Regional Park
- Kranjska Gora
- Lake Ptuj
- Ljubljana Marshes
- Slovenia in 5 days
- Vinarium Tower
- Where to stay in Ljubljana
- Žalec
- Metlika
- Slovenia castles
- Slovenia in a week
- Slovenian Mountain Trail
- Triple Bridge
- Vintgar Gorge
- Vršič Pass
- Where to eat in Ljubljana
- Best viewpoints in Slovenia
- Central Market
- Juliana Trail
- Lake Jasna
- Road trip
- Semič
- Žirovnica
- Kočevje
- Metelkova
- Motorhome
- Museums in Slovenia
- Naklo
- Soča rafting
- Tržič
- Zelenci
- Jezersko
- Kostel
- Lake Planšar
- Skiing
- Slovenia with kids
- Slovenian Alpine Museum
- Tivoli Park
- Best time to visit
- Cerklje na Gorenjskem
- Cycling
- Dolenjske Toplice
- Ljubljanica river
- Mojstrana
- Šenčur
- Krvavec
- National Gallery
- Parenzana
- Peričnik waterfall
- Šmarješke Toplice
- National and University Library
- Paragliding
- Slovenia in winter
- Strmol Castle
- Trebnje
- Vrata valley
- Climbing
- Events
- Martuljek waterfalls
- Žale
- Fly fishing
- Ljubljana museums
- National Museum of Slovenia
- Rateče
- Bovec
- Festival Lent
- Golf
- Hotels in Ptuj
- In February
- Kamnik-Savinja Alps
- Nature parks
- Parking in Ljubljana
- Pekel Cave
- Planica
- Snežnik Castle
- Solčava
- Gornji Grad
- In March
- Kranjska Gora ski resort
- Lakes
- Trenta
- Ziplines
- Alpe Adria Trail
- Hotels in Kranjska Gora
- In April
- Kanin
- Nazarje
- Waterfalls
- Rivers
- Virje waterfall
- Vransko
- Hotels in Bovec
- Mountains
- Šentjur
- Dobra Vila Bovec
- Ljubljana Card
- Mozirje
- Spas
- Nebesa Chalets
- Rečica ob Savinji
- Kobarid
- Šmartno ob Paki
- In October
- Kobarid Museum
- Hiša Franko
- In November
- In December
- Radovljica
- Železniki
- Museum of Apiculture
- Žiri
- Kropa
- Tolmin
- Brezje
- In autumn
- Metaldays
- Tolmin Gorges
- Begunje
- Javorca church
- Slovenia in 10 days
- Most na Soči
- Two weeks in Slovenia
- Idrija
- Ljubljana Marathon
- How to get there
- Idrija mercury mine
- Wild Lake
- Cerkno
- Flights
- Laufarji
- Divje babe
- Franja Partisan Hospital
- Ljubljana Airport
- Ajdovščina
- Nearby airports
- Venice to Ljubljana
- Vipava
- Vipavski Križ
- Zagreb to Ljubljana
- Brda
- Trains to Slovenia
- Getting around
- Šmartno
- Dobrovo Castle
- Trains
- Buses
- Julian Alps
- Car hire
- Triglav National Park
- Driving
- Pokljuka
- Triglav Lakes
- Vignette
- Mount Triglav
- Taxis
- Distances
- Soča Valley
- Soča River
- Trieste to Ljubljana
- Kozjak Waterfall
- Vienna to Ljubljana
- Boka Waterfall
- Budapest to Ljubljana
- Ljubljana to Maribor
- Walk of Peace
- Bled to Bohinj
- Mangart
- Lake Krn
- Prices and budget
- Slovenia on a budget
- Vipava Valley
- Free things to do
- Otlica Natural Window
- Entry requirements
- Rihemberk Castle
- Customs
- Safety
- Scams
- Bears
- Healthcare
- Mobile and roaming
- Plugs
- Packing list
- What to buy
- Hotels
- Campsites
- Farm stays
- Mountain huts
- Food
- Bled cream cake
- Wine
- Potica
- Prekmurska gibanica
- Štruklji
- Carniolan sausage
- Idrija žlikrofi
- Beer
- Tipping
Questions about Slovenia? Write to me
If something does not add up or a fact is missing, write to me and I will answer myself.
My email sergiolepone@gmail.com
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 .
Sources
Some links in this guide are affiliate links: if you book through them, the site earns a commission at no extra cost to you. Affiliate disclosure
Photos: lienyuan lee (CC BY 3.0); Luka Peternel (CC BY-SA 4.0); Ajznponar (CC0), via Wikimedia Commons.