Slovenia Weather Guide

Slovenia is renowned for its alpine summits, graceful hills and craterous valleys - natural beauty is abundant everywhere you look. If you visit Slovenia without a camera, you’ve left more than your SLR at home. Winter, spring, summer and autumn all make defined appearances, although their effects vary across 3 climatic zones. 

Season and Clothing

Summer: June to August

In the summertime, we’ve got (responsible) sunbaking on our mind, and so will you! Slovenia’s coast is the perfect playground for summer lovers as temperatures reach an average of 30 degrees Celsius and the Adriatic Sea gleams invitingly. July and August are peak periods for beach bunnies as Pira, Izola and Portoroz are flooded with holidaymakers. To the northwest, mean temperatures barely reach the low 20s - ideal for tours of Lake Bled or hiking trips around Gora.

Autumn: September to November

Autumn is the perfect time to visit Slovenia. Before you rug up too much, leaf litter underfoot isn’t an instant sign of chilly conditions, as the average sits comfortably at 20 degrees Celsius for much of the country. Despite the gloom of increased rain activity, this period is ideal for absorbing the countryside and touring some of the must-see stops without droves of travellers blocking your view. Bring good walking shoes.

Winter: December to February

Do you ski, snowboard or ice skate? In Slovenia, winter is a wonderland without the high price of Europe’s other powdery playgrounds. Temperatures run the gamut from 7 degrees Celsius in the coastal regions to -6 degrees in the mountains. The capital, Ljubljana, is blanketed in a thick, freezing fog and icicles cling to the medieval architecture, creating an otherworldly vista on the occasional fine day. Don’t forget your thermals!

Spring: March to May

Spring stirs Slovenia out of its frozen haze as ice sheets become rivers and lakes again and carpets of wildflowers colour fields and towns. While the magnificence of spring can’t be denied, March and April bring climatic unpredictability across the country, spurring miserable showers, hanging humidity and powerful wind gusts so don’t forget to pack a raincoat and waterproof shoes.