Weather in Ljubljana

Weather - Ljubljana

Ljubljana weather is temperate with four distinct seasons: cold, sometimes snowy winters, a changeable and often wet spring, warm summers with plenty of daylight, and a crisp, increasingly rainy autumn. Average daytime highs range from about 4–6 °C in mid-winter to mid-20s °C in summer, while nights can drop below freezing in winter. If you are booking flights to Ljubljana, plan by season: summer (June–August) for reliably warm days and long daylight, late spring and early autumn for fewer crowds but more variable weather.

Weather in Ljubljana - January

January is the coldest month in Ljubljana: daytime highs hover near 4 °C and night lows around −2 °C, with measurable frost and several days of snow. Short daylight and limited sunshine make it a quiet time for sightseeing—pack warm layers and waterproof footwear if you travel this month.

Weather in Ljubljana - February

February brings a small but noticeable warming compared to January, with daytime temperatures around 6 °C and still-chilly nights. Snow is still possible, but increasing daylight and occasional sunny breaks hint at the approaching spring.

Weather in Ljubljana - March

March is a true transitional month: average highs climb to about 11 °C while nights are near 1 °C. Expect mixed conditions—more sunshine than winter but also frequent rainy days—making March a good time for early-spring city walks if you dress in layers.

Weather in Ljubljana - April

April is mild and increasingly springlike, with daytime temperatures around 15 °C and cool mornings. The month can be wet and changeable, so sightseeing with an umbrella or light rain jacket is recommended; gardens and riverside areas become especially pleasant on dry days.

Weather in Ljubljana - May

May is warmer—average highs near 19 °C and comfortable nights around 10 °C—but also one of the wetter months with frequent precipitation days. May offers lush spring landscapes and comfortable daytime temperatures, though you should expect occasional showers.

Weather in Ljubljana - June

June is the start of reliably warm weather: daytime highs average about 24 °C with long daylight and increasing sunshine. It’s an excellent month for outdoor activities and exploring the city, though summer storms and heavier rain can occur, so plan flexible outdoor time.

Weather in Ljubljana - July

July is typically the hottest month—average highs around 26 °C—with abundant sunshine, long days and a high UV index. Evenings stay mild, making July ideal for dining outdoors, riverfront strolls and summer events; expect occasional thunderstorms but many fine days for travel.

Weather in Ljubljana - August

August remains warm and pleasant, similar to July, with daytime temperatures in the mid-20s °C and plenty of daylight. It’s a top month for visitors who want summer warmth—great for pools, lakes nearby and outdoor sightseeing—while keeping an eye on intermittent rain showers.

Weather in Ljubljana - September

September brings a comfortable cooling: average highs drop to about 20 °C and nights to around 11 °C. Early autumn is often mild and attractive for travel—fewer crowds than high summer—but rainfall can increase as the month progresses.

Weather in Ljubljana - October

October is a crisp autumn month with daytime temperatures near 15 °C and cooler mornings. Expect more overcast and rainy days; autumn colors and cooler air make it a good choice for cultural trips and enjoying Ljubljana’s cafés and museums.

Weather in Ljubljana - November

November is cooler and often grey, with highs around 9 °C and frequent precipitation. It’s a low-season month for tourism—use it for museum visits and citybreak bargains, but be prepared for damp, overcast conditions.

Weather in Ljubljana - December

December returns to winter conditions with daytime highs around 5 °C and nights near −1 °C; snow is possible on multiple days. The festive season brings charm to Ljubljana’s streets and markets, though cold and short daylight hours are typical.

Table with temperatures during the year