April brings steadily milder weather and longer daylight; rain showers are common as the landscape greens. This is a good time for quieter sightseeing and outdoor walks before the summer crowds arrive.
SeasonShoulderTemperature 7 to 16°C (45 to 61°F)Crowds ModeratePrices Moderate
High seasonShoulderLow season
Weather by City in April
CityLow / highRain
Ljubljana
Cold
4°15° 111 mm
Maribor
Cold
4°15° 75 mm
Celje
Cold
4°16° 82 mm
Kranj
Cold
3°14° 118 mm
Koper
Cool
9°17° 78 mm
Novo Mesto
Cold
5°15° 80 mm
Velenje
Cold
4°14° 93 mm
Average daily low and high (°C) and monthly rainfall. The badge shows how it feels, allowing for humidity.
Temperature map
-30°-20°-10°0°10°20°30°40°
Average temperature across Slovenia in April.
Where to Go in Slovenia in April
Julian Alps & Alpine Slovenia
Bled, Bohinj, Kranjska Gora, Triglav
Late spring is when the high alpine passes start to open and hikers begin to return: roads to Vršič and many mountain huts reopen, though some high routes are still snowbound. The Bled rowing season teases with calmer days and milder evenings; waterfalls like Peričnik and Savica fill impressively. Expect cooler nights and wet trails; carry insulating layers and check local trail reports because snow patches can make scrambling awkward.
Soča Valley & Goriška Hills
Bovec, Kobarid, Tolmin, Nova Gorica, Goriška Brda
Late spring is excellent for adventure sports: the Soča’s flow is strong, offering memorable rafting and kayaking runs, while cycling routes through Goriška Brda become greener and fragrant. Tourist numbers rise on weekends; mountain roads are mostly clear but some higher hiking routes retain snow patches. Bring quick-drying clothing for river sports, a light drybag for electronics, and a waterproof jacket for sudden mountain showers.
Slovenian Coast & Karst
Piran, Koper, Portorož, Škocjan Caves, Lipica
Late spring is pleasantly warm and often sunny, making it a lovely time to explore coastal towns and the salt pans of Sečovlje. Sea breezes are comfortable and boat services increase, while the Karst region blooms with wildflowers and truffle hunters prepare for the coming season. Accommodation prices climb slowly-pack light layers for breezy evenings and a swimsuit for opportunistic sea dips on calmer days.
Ljubljana & Central Slovenia
Ljubljana, Kamnik, Radovljica, Central Sava Valley
Late spring is one of the most pleasant times to visit: warm days, cool evenings and long daylight make walking Ljubljana’s old town delightful. Outdoor markets brim with fresh produce and the foothills are ideal for cycling or short hikes. Occasional thunderstorms are possible-pack a compact umbrella-but overall this is a prime window for sightseeing before the summer heat.
Northeast & Southeast Lowlands
Prekmurje, Ptuj, Murska Sobota, Dolenjska, Bela Krajina, Rogaška
Late spring is pleasantly warm and dry in most years; pre-harvest work begins in vineyards around Dolenjska and Bela Krajina, and riverside promenades are pleasant for cycling. Ptuj’s castle and parks are appealing before the summer tourists arrive, and many open-air cultural events begin. Pack layers for cool mornings and a sunhat for surprisingly strong midday sun in the open plains.
Events & Festivals in April
There are no major festivals or events in Slovenia during April to be aware of.
Planning a trip to Slovenia?
See how April compares with the rest of the year, then read the full guide.
