Climate - Ljubljana (Slovenia)

---

---

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.

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.

On average, there are around 1,955 sunshine hours per year. Here are the average sunshine hours per day.

Weather by month

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

In January, the coldest month of the year, the average temperature is 1.2 °C (34.1 °F), with a minimum of -1.7 °C (28.9 °F) and a maximum of 4.1 °C (39.4 °F).
On the coldest nights of the month, the temperature typically drops to -9 °C (16 °F). However, it dropped to -16 °C (3 °F) in January 2003.
On the mildest days of the month, the temperature typically reaches 11.5 °C (53 °F). However, it reached 16.5 °C (61 °F) in January 2013.
Precipitation amounts to 65 millimeters (2.6 inches), spread over 7 days.
On average, there are 73 hours of sunshine per month, ie 2.3 hours per day.

In February, the average temperature is 2.9 °C (37.2 °F), with a minimum of -1.2 °C (29.8 °F) and a maximum of 7 °C (44.5 °F).
On the coldest nights of the month, the temperature typically drops to -7.5 °C (18 °F). However, it dropped to -14.5 °C (6 °F) in February 1991.
On the mildest days of the month, the temperature typically reaches 14.5 °C (58 °F). However, it reached 21.5 °C (71 °F) in February 2012.
Precipitation amounts to 85 millimeters (3.3 inches), spread over 7 days.
On average, there are 102 hours of sunshine per month, ie 3.7 hours per day.

In March, the average temperature is 7.3 °C (45.1 °F), with a minimum of 2.3 °C (36.2 °F) and a maximum of 12.3 °C (54.1 °F).
On the coldest nights of the month, the temperature typically drops to -4 °C (25 °F). However, it dropped to -14 °C (7 °F) in March 2005.
On the mildest days of the month, the temperature typically reaches 20 °C (68 °F). However, it reached 24.5 °C (76 °F) in March 2014.
Precipitation amounts to 85 millimeters (3.3 inches), spread over 8 days.
On average, there are 155 hours of sunshine per month, ie 5 hours per day.

In April, the average temperature is 11.7 °C (53 °F), with a minimum of 6.3 °C (43.3 °F) and a maximum of 17 °C (62.7 °F).
On the coldest nights of the month, the temperature typically drops to 0.5 °C (33 °F). However, it dropped to -2.5 °C (28 °F) in April 2003.
On the warmest days of the month, the temperature typically reaches 24.5 °C (76 °F). However, it reached 28.5 °C (83 °F) in April 2012.
Precipitation amounts to 100 millimeters (3.9 inches), spread over 10 days.
On average, there are 185 hours of sunshine per month, ie 6.2 hours per day.

In May, the average temperature is 16.2 °C (61.1 °F), with a minimum of 10.6 °C (51 °F) and a maximum of 21.8 °C (71.3 °F).
On the coldest nights of the month, the temperature typically drops to 5.5 °C (41 °F). However, it dropped to 2 °C (36 °F) in May 1991.
On the warmest days of the month, the temperature typically reaches 29 °C (84 °F). However, it reached 32.5 °C (90 °F) in May 1999.
Precipitation amounts to 115 millimeters (4.5 inches), spread over 11 days.
On average, there are 233 hours of sunshine per month, ie 7.5 hours per day.

In June, the average temperature is 20.1 °C (68.1 °F), with a minimum of 14.4 °C (57.9 °F) and a maximum of 25.8 °C (78.4 °F).
On the coldest nights of the month, the temperature typically drops to 9 °C (48 °F). However, it dropped to 4 °C (39 °F) in June 1991.
On the warmest days of the month, the temperature typically reaches 32.5 °C (90 °F). However, it reached 36.5 °C (98 °F) in June 2019.
Precipitation amounts to 125 millimeters (4.9 inches), spread over 10 days.
On average, there are 254 hours of sunshine per month, ie 8.5 hours per day.

In July, the warmest month of the year, the average temperature is 21.9 °C (71.5 °F), with a minimum of 16 °C (60.8 °F) and a maximum of 27.9 °C (82.2 °F).
On the coldest nights of the month, the temperature typically drops to 11.5 °C (53 °F). However, it dropped to 8.5 °C (47 °F) in July 1996.
On the warmest days of the month, the temperature typically reaches 34 °C (93 °F). However, it reached 37 °C (99 °F) in July 2007.
Precipitation amounts to 120 millimeters (4.7 inches), spread over 9 days.
On average, there are 287 hours of sunshine per month, ie 9.3 hours per day.

In August, the average temperature is 21.7 °C (71 °F), with a minimum of 15.8 °C (60.4 °F) and a maximum of 27.6 °C (81.6 °F).
On the coldest nights of the month, the temperature typically drops to 10 °C (50 °F). However, it dropped to 6 °C (42 °F) in August 1995.
On the warmest days of the month, the temperature typically reaches 33.5 °C (92 °F). However, it reached 40 °C (104 °F) in August 2013.
Precipitation amounts to 130 millimeters (5.1 inches), spread over 9 days.
On average, there are 266 hours of sunshine per month, ie 8.6 hours per day.

In September, the average temperature is 16.7 °C (62.1 °F), with a minimum of 11.7 °C (53.1 °F) and a maximum of 21.8 °C (71.2 °F).
On the coldest nights of the month, the temperature typically drops to 6 °C (43 °F). However, it dropped to 3 °C (37 °F) in September 2018.
On the warmest days of the month, the temperature typically reaches 28 °C (83 °F). However, it reached 33 °C (92 °F) in September 2011.
Precipitation amounts to 155 millimeters (6.1 inches), spread over 9 days.
On average, there are 175 hours of sunshine per month, ie 5.8 hours per day.

In October, the average temperature is 12 °C (53.5 °F), with a minimum of 7.9 °C (46.2 °F) and a maximum of 16 °C (60.9 °F).
On the coldest nights of the month, the temperature typically drops to 0.5 °C (33 °F). However, it dropped to -5 °C (23 °F) in October 1997.
On the warmest days of the month, the temperature typically reaches 23 °C (73 °F). However, it reached 26 °C (79 °F) in October 2011.
Precipitation amounts to 150 millimeters (5.9 inches), spread over 9 days.
On average, there are 116 hours of sunshine per month, ie 3.7 hours per day.

In November, the average temperature is 6.8 °C (44.2 °F), with a minimum of 3.9 °C (39.1 °F) and a maximum of 9.6 °C (49.3 °F).
On the coldest nights of the month, the temperature typically drops to -3 °C (26 °F). However, it dropped to -7 °C (19 °F) in November 1995.
On the mildest days of the month, the temperature typically reaches 17.5 °C (64 °F). However, it reached 21.5 °C (71 °F) in November 2015.
Precipitation amounts to 140 millimeters (5.5 inches), spread over 10 days.
On average, there are 55 hours of sunshine per month, ie 1.8 hours per day.

In December, the average temperature is 1.6 °C (34.8 °F), with a minimum of -1 °C (30.1 °F) and a maximum of 4.2 °C (39.5 °F).
On the coldest nights of the month, the temperature typically drops to -8.5 °C (16 °F). However, it dropped to -14.5 °C (6 °F) in December 2001.
On the mildest days of the month, the temperature typically reaches 12 °C (54 °F). However, it reached 17 °C (63 °F) in December 2019.
Precipitation amounts to 100 millimeters (3.9 inches), spread over 8 days.
On average, there are 56 hours of sunshine per month, ie 1.8 hours per day.

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.