Climate and monthly weather forecast

Flag of Slovenia
Flag of Slovenia

The climate of Slovenia

Slovenia, a country known for its diverse geography, is situated in Central Europe, flanked by Italy, Hungary, Austria, and Croatia. Its topography ranges from the Alps in the north, the Mediterranean along the coast, to the Pannonian Plain in the east. Slovenia's climate is influenced by these geographic elements, leading to a mix of the Oceanic (Cfb) and Humid Continental (Dfb) climates according to the Köppen climate classification. The Oceanic climate bestows the country with cool summers and winters that are not overly cold or mild, with rainfall distributed fairly evenly throughout the year. On the other hand, the Humid Continental climate manifests itself with significant temperature variation between summer and winter months, sufficient year-round precipitation, and most precipitation typically falling in the warmer months.

The best time to visit Slovenia

The ideal time to visit Slovenia depends greatly on the activities tourists aim to engage in. For those interested in hiking and outdoor activities, late spring to early autumn, specifically from May to September, presents the most favorable conditions. During this period, temperatures typically range from 20°C (68°F) to 25°C (77°F), making it perfect for exploring Slovenia's stunning natural landscapes, including Triglav National Park and the scenic coastline. However, those who prefer sightseeing in cities might find late spring and early autumn more comfortable, with cooler temperatures and fewer tourists.

The worst time to visit Slovenia

The less favorable period to visit Slovenia can be the winter months, particularly from December to February. During this period, temperatures often fall below 0°C (32°F), and heavy snowfall is common, especially in the northern and mountainous regions. While this climate is ideal for winter sports enthusiasts, it might hinder travel plans for sightseeing and exploration. Additionally, the shorter daylight hours can limit the time available for outdoor activities.

Spring weather in Slovenia

Spring in Slovenia, from March to May, is a season of rebirth and warming temperatures. Early spring can still be chilly, with temperatures ranging from 10°C (50°F) to 15°C (59°F). As the season progresses, temperatures rise, reaching up to 20°C (68°F) by late May. This period also sees increased rainfall, which brings lushness to Slovenia's beautiful landscapes. The spring season is ideal for sightseeing and outdoor exploration before the summer tourist rush.

Summer weather in Slovenia

Slovenia's summer, from June to August, is warm but not excessively hot. Temperatures typically range from 20°C (68°F) to 30°C (86°F), but can occasionally rise above this. Summer also witnesses the highest precipitation levels of the year, mostly in the form of afternoon thundershowers. Despite this, the long sunny days make it an excellent time for outdoor activities such as hiking, cycling, and exploring the country's coastline and beaches.

Autumn weather in Slovenia

Autumn in Slovenia, from September to November, sees a gradual decrease in temperatures and daylight hours. Early autumn continues to enjoy warm weather, with temperatures from 20°C (68°F) to 25°C (77°F), but by late November, temperatures drop to between 5°C (41°F) and 10°C (50°F). Autumn is the driest season in Slovenia, with lower levels of rainfall. The beautiful fall foliage across the country’s parks and forests makes this a wonderful season for nature lovers.

Winter weather in Slovenia

Winter in Slovenia, from December to February, can be quite cold, particularly in the northern and mountainous regions. Temperatures frequently drop below 0°C (32°F), and can fall as low as -10°C (14°F) in the coldest months. Snowfall is common throughout the country, with heavy snow in the Alps. While this season may present travel challenges, it is the best time for winter sports, with excellent skiing conditions in Slovenian ski resorts.

Weather in January

January is typically the coldest month in Slovenia, with average temperatures frequently falling below 0°C (32°F) across the country. In the capital, Ljubljana, the mercury often ranges from -3°C (26.6°F) to 4°C (39.2°F). Weather in January »

Weather in February

February continues the winter season in Slovenia, but the temperatures start to slightly rise compared to January. The national average temperature typically ranges from -2°C (28.4°F) to 5°C (41°F), although regional variations exist. Weather in February »

Weather in March

March in Slovenia signifies the onset of the spring season, with an observable rise in temperatures compared to the preceding winter months. The average temperatures at a national level fluctuate from 1°C (33.8°F) to 11°C (51.8°F). Weather in March »

Weather in April

April in Slovenia is a fully-fledged spring month, characterized by an appreciable rise in temperatures. On a national scale, temperatures generally range from 5°C (41°F) to 15°C (59°F). In Ljubljana, the typical temperature fluctuates between 6°C (42.8°F) and 18°C (64.4°F). Weather in April »

Weather in May

May in Slovenia heralds the start of the warm season, with temperatures consistently rising across the country. Nationally, the average temperature varies from 10°C (50°F) to 21°C (69.8°F). The capital, Ljubljana, typically experiences temperatures between 11°C (51.8°F) and 23°C (73.4°F). Weather in May »

Weather in June

June marks the onset of the summer season in Slovenia, with the average temperatures across the country increasing considerably. On a national scale, temperatures typically range from 15°C (59°F) to 25°C (77°F). In Ljubljana, temperatures hover between 16°C (60.8°F) and 27°C (80.6°F). Weather in June »

Weather in July

July in Slovenia is characterized by the height of summer, offering the warmest temperatures of the year. Nationally, the average temperatures fluctuate from 18°C (64.4°F) to 28°C (82.4°F). The capital city, Ljubljana, generally sees temperatures ranging between 19°C (66.2°F) and 30°C (86°F). Weather in July »

Weather in August

August continues the trend of warm summer temperatures in Slovenia. Nationally, the average temperatures typically vary from 17°C (62.6°F) to 27°C (80.6°F). In the capital, Ljubljana, temperatures usually range between 18°C (64.4°F) and 29°C (84.2°F). Weather in August »

Weather in September

September in Slovenia heralds the beginning of the autumn season, marked by a noticeable decrease in temperatures compared to the summer months. Nationally, average temperatures generally range from 13°C (55.4°F) to 22°C (71.6°F). Weather in September »

Weather in October

October in Slovenia sees a continuation of the autumn season, with temperatures continuing to decrease. Across the country, average temperatures generally fluctuate between 8°C (46.4°F) and 16°C (60.8°F). In Ljubljana, the temperatures typically range from 9°C (48.2°F) to 18°C (64.4°F). Weather in October »

Weather in November

November in Slovenia ushers in the late autumn period, characterized by further declines in temperature and an increase in precipitation. On a national scale, temperatures usually vary from 3°C (37.4°F) to 9°C (48.2°F). In Ljubljana, the capital, temperatures generally range between 4°C (39.2°F) and 11°C (51.8°F). Weather in November »

Weather in December

December in Slovenia signifies the onset of the winter season, bringing with it colder temperatures and an increase in snowfall. Across the country, average temperatures generally vary from -1°C (30.2°F) to 4°C (39.2°F). In the capital, Ljubljana, the typical temperature ranges from -1°C (30.2°F) to 5°C (41°F). Weather in December »
Resources | Updated: Feb 1, 2024 | Published by: Weather Atlas


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