Slovenia in July: Weather, Crowds & What to Expect
Climate Map for July
Average temperature across Slovenia in July.
City Weather in July
| City | High | Low | Rain | UV | Feels |
|---|---|---|---|---|---|
| Ljubljana | 26° | 14° | 115 mm | very high | Mild |
| Maribor | 26° | 14° | 117 mm | very high | Mild |
| Celje | 26° | 14° | 134 mm | very high | Mild |
| Kranj | 26° | 13° | 135 mm | very high | Mild |
| Koper | 28° | 20° | 61 mm | very high | Mild |
| Novo Mesto | 26° | 14° | 110 mm | very high | Mild |
| Velenje | 25° | 13° | 144 mm | very high | Mild |
High / low are average daily temperatures (°C). “Feels” reflects how hot or cold it feels, allowing for humidity.
Julian Alps & Alpine Slovenia (Bled, Bohinj, Kranjska Gora, Triglav)
High summer warmth can bake lower alpine meadows while higher ridges remain refreshingly cool; this is festival season in alpine towns and mountain huts run full service. Rock routes and via ferrata are in best conditions, but tempestuous thunderstorms can roll in fast-carry a headlamp and emergency shelter. The nights are cool; a warm layer is useful even after a hot day. Expect crowds on iconic viewpoints such as Ojstrica and Mala Osojnica at Bled.
Soča Valley & Goriška Hills (Bovec, Kobarid, Tolmin, Nova Gorica, Goriška Brda)
Early autumn yields cooler, clearer days ideal for long hikes and road trips through the Soča Gorge and across Goriška Brda’s winery routes. Harvest activity and smaller village wine events add local color; evenings cool off, revealing stars over the valley. River flows typically drop making paddling easier and safer-this is a quieter time for outdoor adventures and photography, with breathable layers and a light rain jacket sufficient most days.
Slovenian Coast & Karst (Piran, Koper, Portorož, Škocjan Caves, Lipica)
Early autumn remains warm and pleasant-September is one of the best months for swimming and cycling the coastal pathways with fewer crowds. Wine harvests and olive collection begin in nearby hills, adding local festivals and open-cellar tastings. The risk of the bora increases into October; bring a windproof layer and check ferry timetables during stormy spells.
Ljubljana & Central Slovenia (Ljubljana, Kamnik, Radovljica, Central Sava Valley)
Early autumn cools evenings rapidly and brings crisp, clear days good for long walks in Tivoli Park and the medieval streets. Grape harvest activities start in nearby wine regions like Radgona and Dolenjska, offering seasonal tastings and rural experiences. Expect fewer tourists and pleasant daytime temperatures; bring a midlayer for late-afternoon river cruises and an umbrella for occasional autumn showers.
Northeast & Southeast Lowlands (Prekmurje, Ptuj, Murska Sobota, Dolenjska, Bela Krajina, Rogaška)
Early autumn is harvest season, with grape picking and chestnut festivals across Dolenjska and Bela Krajina; the landscape turns golden and food markets brim with seasonal products. Ptuj and smaller towns host cultural events tied to harvest dates, making this an appealing time for food-focused travellers. Cooler nights return; a warm sweater for evening tastings is worthwhile.