Weather in Slovenia by Month
The Republic of Slovenia is located in Central Europe, in the north of the Balkan Peninsula. The area of the state is 20.3 thousand km2. On the western side, the country is washed by the Adriatic Sea.
Slovenia is divided into four relief zones. In the northwest stretches the mountain system of the Alps, which occupy 42% of the country’s territory. In the northeast lies the Pannonian lowland. The south of Slovenia is assigned to the Dinaric highlands. 9% of the state’s area goes to the Adriatic coast in the southwest – this is the lowest point in the country (0 m above sea level).
There are two large rivers in Slovenia – Drava and Sava, mountain-glacial and karst lakes with hundreds of karst caves. Slovenian steppes will appear on the Dinaric Highlands, alpine meadows await tourists in the north of the country, maquis prevails in coastal regions. The main part of Slovenia is occupied by deciduous, evergreen and mixed forests.
The climate in the Republic of Slovenia is temperate. Conventionally, the territory is divided into three climatic zones: the sea coast with hot summers, warm winters and low rainfall; north and center with moderate summers, cool winters and precipitation up to 3000 mm per year; and the east with infrequent rains up to 700 mm per year.
Slovenia with mild weather is suitable for travel at any time of the year. To choose the best dates for your trip, pay attention to the weather conditions in Slovenia by months.
Weather in Slovenia in January
January is a cold and foggy month. In the central part of the country the air temperature fluctuates within 0°С. Precipitation is recorded, but the snow cover is delayed only in the north of Slovenia due to sub-zero temperatures. At ski resorts, daytime temperatures range from -1°С to +2°С, and at night – from -4°С to -8°С.
Weather in Slovenia in February
In seaside resorts, the air temperature in February rarely drops below +6°C. In Ljubljana, the daytime air temperature is +4°C, and at night it drops to 0°C. As in January, skiing is popular in the country. On Kranjska Gora, Bovec, Cerkno, the thermometer readings during the day are within 0°С…+2°С, and at night they are -3°С…-5°С.
Weather in Slovenia in March
In the lowland regions of the country in March, the daily air temperature rises to +10°С. Rains are recorded infrequently, 1-2 days per month. The air temperature during the day in the ski resorts reaches +8°С, and at night it is within 0°С. The snow cover is gradually disappearing, so by the end of the month the ski vacation in the mountains ends.
Weather in Slovenia in April
In the capital of Slovenia in April, the air temperature reaches +19°C. Precipitation is becoming frequent – up to 135 mm per month, thunderstorms pass in places. There are many cloudy days in April, but the sky is mostly cloudless on the sea coast, and the air temperature during the day rises above +20°C. The water in the sea warms up to +15°С.
Weather in Slovenia in May
In the southern resorts of Slovenia in May, the air temperature is between +23°С…+25°С. +28°C is recorded on the Adriatic coast. However, swimming is still cold. The water temperature is +18°C. It is a little cooler in the capital of Slovenia – the thermometer does not rise above +21°C during the day. In mountain resorts, daytime air temperature fluctuates within +20°С. Ecotourism is popular at this time of the year.
Weather in Slovenia in June
The beach season opens in June. The water in the Adriatic Sea warms up to +22°С. The air temperature in seaside resorts during the day is within +27°С…+30°С, at night it drops to +23°С. Precipitation in June is an infrequent occurrence: 1 day per month in the south and up to 3 days in the north. In Ljubljana, the thermometer in the daytime shows + 22 °, and at night the bar drops by 2 degrees.
Weather in Slovenia in July
Up to 117 mm of precipitation is observed in the capital of Slovenia in July. The daytime air temperature is +24°C, and the night temperature is up to +20°C. Seaside resorts are popular. In Portorož, the daytime air temperature rises above +28°С. The water in the sea warms up to +25°С. At the foot of the Alps it is coolest. Here, in the daytime, the air temperature ranges from +23°С to +25°С. July in Slovenia is a great time for hiking.
Weather in Slovenia in August
In the seaside resorts (Piran, Izola, Koper, Portorož), the daytime air temperature in August exceeds +29°С, at night it drops to +26°С. The water temperature in the Adriatic Sea ranges from +25°С to +27°С. The amount of precipitation is increasing. In Ljubljana, up to 134 mm are recorded in August, and up to 158 mm in Vogel (northeast). The air temperature during the day is +25°С and +22°С at night.
Weather in Slovenia in September
On Portorož in September, the air temperature during the day is +26°C. Within these limits are the thermometer readings along the entire coast. The water temperature in the sea ranges from +20°С to +23°С. In mountainous regions the air temperature does not exceed +20°C. In Ljubljana at this time, the average daily temperature is +21°C. South-east and east winds blow 7 days a month.
Weather in Slovenia in October
The beach season in Slovenia ends in October. The water temperature drops to +18°С, the weather becomes more windy. Significant precipitation is recorded in Ljubljana – up to 147 mm. The daytime air temperature is +14°C, and the night temperature is up to +5°C. In October, medical resorts are popular – Čatež, Rogashka Slatina. Here the air temperature during the day is 1 degree higher than in the capital.
Weather in Slovenia in November
November in Slovenia is characterized by fogs, rains and cloudy days. Up to 175 mm of precipitation falls in the mountains. The southerly winds are replaced by western and northeastern ones, bringing coolness. The daily air temperature during the day in Ljubljana ranges from +4°С to +6°С. And in the warmest resorts of Slovenia (sea coast), the temperature maximum is + 15 ° С.
Weather in Slovenia in December
In December, the weather is unstable. In mountainous regions, daytime air temperature varies from 0°С to -10°С. But in general, excellent conditions for ski holidays are created. A lot of snow falls – up to 99 mm. In the capital, the daily air temperature reaches +4°C, at night the mark drops to 0°C. 7 clear days are recorded, the rest of the time the sky is overcast.
