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Climate in Ljubljana (Slovenia)


Average weather, temperature, rainfall, sunshine hours

Flag - Slovenia

Ljubljana, where it's located


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Climate chart - Ljubljana
The climate of Ljubljana is continental, with cold winters and warm summers.
The city is the capital of Slovenia and is located in the central-western part of the country, at an altitude of 300 meters (1,000 feet). The Alps are to the north and the Carso to the south.
In winter, snow often falls, while there are frequent fogs when the weather is stable. Cold waves from Russia can bring intense frosts; during the most intense cold spells, the temperature can reach -20 °C (-4 °C). The cold record is -25.4 °C (-13.7 °F), set in January 1942.
In summer, there is a moderate amount of afternoon thunderstorms, although the sun shines quite often. There can be short heat waves, with peaks of 35 °C (95 °F). The heat record is 40.2 °C (104.4 °F), set in August 2013.
The average temperature of the coldest month (January) is of 1.2 °C (34 °F), that of the warmest month (July) is of 21.9 °C (72 °F). Here are the average temperatures.
Ljubljana - Average temperatures (1991-2020)
Temperatures (°C)
MonthMinMaxMean
January-1,74,11,2
February-1,272,9
March2,312,37,3
April6,31711,7
May10,621,816,2
June14,425,820,1
July1627,921,9
August15,827,621,7
September11,721,816,7
October7,91612
November3,99,66,8
December-14,11,6
Year7,116,311,7

Precipitation amounts to 1,370 millimeters (53.9 inches) per year: it is therefore quite abundant. It ranges from 65 mm (2.6 in) in the driest month (January) to 155 mm (6.1 in) in the wettest (September). Here is the average precipitation.
Ljubljana - Average precipitation
MonthRain (mm)Days
January657
February857
March858
April10010
May11511
June12510
July1209
August1309
September1559
October1509
November14010
December1008
Year1370108

On average, there are around 1,955 sunshine hours per year. Here are the average sunshine hours per day.
Ljubljana - Sunshine hours
MonthAverageTotal
January2,570
February3,5105
March5155
April6185
May7,5230
June8,5255
July9,5290
August8,5265
September6175
October3,5115
November255
December255
Year5,41955

Ljubljana

Best Time


The best times to visit Ljubljana are spring and autumn, and in particular, the months of May, June and September: daytime temperatures are pleasant, although it's better to bring a sweater and a jacket for the evening. In July and August, the temperature is usually not too hot, however, there is the risk of some very hot days, which can happen, though more rarely, also in the second half of June and in the first half of September.

Ljubljana - Climate data


In Ljubljana, the average temperature of the coldest month (January) is of 1,2 °C, that of the warmest month (July) is of 21,9 °C. Here are the average temperatures.
Ljubljana - Average temperatures (1991-2020)
Temperatures (°C)
MonthMinMaxMean
January-1,74,11,2
February-1,272,9
March2,312,37,3
April6,31711,7
May10,621,816,2
June14,425,820,1
July1627,921,9
August15,827,621,7
September11,721,816,7
October7,91612
November3,99,66,8
December-14,11,6
Year7,116,311,7

Precipitation amounts to 1370 millimeters per year: it is therefore quite abundant. It ranges from 65 millimeters in the driest month (January) to 155 millimeters in the wettest one (September). Here is the average precipitation.
Ljubljana - Average precipitation
MonthRain (mm)Days
January657
February857
March858
April10010
May11511
June12510
July1209
August1309
September1559
October1509
November14010
December1008
Year1370108

There are on average around 1955 sunshine hours per year. Here are the average hours of sunshine per day.
Ljubljana - Sunshine hours
MonthAverageTotal
January2,570
February3,5105
March5155
April6185
May7,5230
June8,5255
July9,5290
August8,5265
September6175
October3,5115
November255
December255
Year5,41955

Ljubljana - Weather by month

Based on the period 1991-2020
(January - February - March - April - May - June - July - August - September - October - November - December)


January, the coldest month of the year, is generally a cold month. The average temperature is of 1,2 °C, with a minimum of -1,7 °C and a maximum of 4,1 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around -9 °C. However, it dropped to -16,2 °C in January 2003.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 11,5 °C. However, it reached 16,3 °C in January 2013.
Rain iconPrecipitation amounts to 65 mm, distributed over 7 days.
The day lasts on average 9 hours and 5 minutes.
Sun iconThere are on average 2,5 hours of sunshine per day. So, the sun shines 25% of the time.
The average humidity is 87%. Hence, the air is normally humid.
The average wind speed is of 4,1 kph.


February is generally a cold month. The average temperature is of 2,9 °C, with a minimum of -1,2 °C and a maximum of 7 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around -7,5 °C. However, it dropped to -14,6 °C in February 1991.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 14,5 °C. However, it reached 21,6 °C in February 2012.
Rain iconPrecipitation amounts to 85 mm, distributed over 7 days.
The day lasts on average 10 hours and 25 minutes.
Sun iconThere are on average 3,5 hours of sunshine per day. So, the sun shines 36% of the time.
The average humidity is 80%. Hence, the air is normally humid.
The average wind speed is of 4,7 kph.


March is generally a quite mild month. The average temperature is of 7,3 °C, with a minimum of 2,3 °C and a maximum of 12,3 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around -4 °C. However, it dropped to -14,1 °C in March 2005.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 20 °C. However, it reached 24,5 °C in March 2014.
Rain iconPrecipitation amounts to 85 mm, distributed over 8 days.
The day lasts on average 12 hours and 0 minutes.
Sun iconThere are on average 5 hours of sunshine per day. So, the sun shines 42% of the time.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is of 5,8 kph.


April is generally a mild month. The average temperature is of 11,7 °C, with a minimum of 6,3 °C and a maximum of 17 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 0,5 °C. However, it dropped to -2,9 °C in April 2020.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 24,5 °C. However, it reached 28,6 °C in April 2012.
Rain iconPrecipitation amounts to 100 mm, distributed over 10 days.
The day lasts on average 13 hours and 35 minutes.
Sun iconThere are on average 6 hours of sunshine per day. So, the sun shines 46% of the time.
The average humidity is 71%. Hence, the air is normally humid.
The average wind speed is of 6 kph.


May is generally a very mild month. The average temperature is of 16,2 °C, with a minimum of 10,6 °C and a maximum of 21,8 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 5,5 °C. However, it dropped to 2,2 °C in May 1991.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 29 °C. However, it reached 32,4 °C in May 1999.
Rain iconPrecipitation amounts to 115 mm, distributed over 11 days.
The day lasts on average 15 hours and 0 minutes.
Sun iconThere are on average 7,5 hours of sunshine per day. So, the sun shines 50% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is of 6 kph.


June is generally a warm month. The average temperature is of 20,1 °C, with a minimum of 14,4 °C and a maximum of 25,8 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 9 °C. However, it dropped to 3,8 °C in June 2006.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 32,5 °C. However, it reached 36,5 °C in June 2019.
Rain iconPrecipitation amounts to 125 mm, distributed over 10 days.
The day lasts on average 15 hours and 40 minutes. June 21, the winter solstice, is the shortest day of the year in the Southern Hemisphere.
Sun iconThere are on average 8,5 hours of sunshine per day. So, the sun shines 54% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is of 5,7 kph.


July, the warmest month of the year, is generally a warm month. The average temperature is of 21,9 °C, with a minimum of 16 °C and a maximum of 27,9 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 11,5 °C. However, it dropped to 8,4 °C in July 1996.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 34 °C. However, it reached 37 °C in July 2007.
Rain iconPrecipitation amounts to 120 mm, distributed over 9 days.
The day lasts on average 15 hours and 20 minutes.
Sun iconThere are on average 9,5 hours of sunshine per day. So, the sun shines 61% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is of 5,5 kph.


August is generally a warm month. The average temperature is of 21,7 °C, with a minimum of 15,8 °C and a maximum of 27,6 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 10 °C. However, it dropped to 5,8 °C in August 1995.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 33,5 °C. However, it reached 40,2 °C in August 2013.
Rain iconPrecipitation amounts to 130 mm, distributed over 9 days.
The day lasts on average 14 hours and 5 minutes.
Sun iconThere are on average 8,5 hours of sunshine per day. So, the sun shines 61% of the time.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is of 5 kph.


September is generally a very mild month. The average temperature is of 16,7 °C, with a minimum of 11,7 °C and a maximum of 21,8 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 6 °C. However, it dropped to 3 °C in September 2018.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 28 °C. However, it reached 33,2 °C in September 2011.
Rain iconPrecipitation amounts to 155 mm, distributed over 9 days.
The day lasts on average 12 hours and 30 minutes.
Sun iconThere are on average 6 hours of sunshine per day. So, the sun shines 46% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is of 4,4 kph.


October is generally a mild month. The average temperature is of 12 °C, with a minimum of 7,9 °C and a maximum of 16 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 0,5 °C. However, it dropped to -5,2 °C in October 1997.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 23 °C. However, it reached 26,2 °C in October 2011.
Rain iconPrecipitation amounts to 150 mm, distributed over 9 days.
The day lasts on average 10 hours and 55 minutes.
Sun iconThere are on average 3,5 hours of sunshine per day. So, the sun shines 34% of the time.
The average humidity is 85%. Hence, the air is normally humid.
The average wind speed is of 4,3 kph.


November is generally a quite mild month. The average temperature is of 6,8 °C, with a minimum of 3,9 °C and a maximum of 9,6 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around -3 °C. However, it dropped to -7,1 °C in November 1995.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 17,5 °C. However, it reached 21,5 °C in November 2015.
Rain iconPrecipitation amounts to 140 mm, distributed over 10 days.
The day lasts on average 9 hours and 25 minutes.
Sun iconThere are on average 2 hours of sunshine per day. So, the sun shines 19% of the time.
The average humidity is 89%. Hence, the air is normally humid.
The average wind speed is of 4,1 kph.


December is generally a cold month. The average temperature is of 1,6 °C, with a minimum of -1 °C and a maximum of 4,1 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around -8,5 °C. However, it dropped to -14,5 °C in December 2001.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 12 °C. However, it reached 17 °C in December 2019.
Rain iconPrecipitation amounts to 100 mm, distributed over 8 days.
The day lasts on average 8 hours and 40 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
Sun iconThere are on average 2 hours of sunshine per day. So, the sun shines 21% of the time.
The average humidity is 91%. Hence, the air is normally humid.
The average wind speed is of 3,8 kph.

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