Upper Carniola is determined by the Alpine climate. It enjoys pleasant, sunny summers when days are long and temperatures can often exceed 25°C, particularly in July and August. However the summer months are also unpredictable, and the weather can change from sunshine to cloud and rain in a matter of minutes. Winter weather in Upper Carniola, by contrast, is bitterly cold, with snow and frosty days when temperatures hover at or just below freezing. Rain can fall all year round, but the wettest months are October and November, and the driest on average January and February.

When to go – the best time to visit Upper Carniola
The tourist levels in the Upper Carniola region of Slovenia are at their highest in the summer months, especially between June and August, when the weather is at its best, although summer days are known to be somewhat changeable and rather unpredictable. Other great months to visit Upper Carniola are May, June, September and October when the average temperatures are a little cooler but still between a pleasant 15°C and 20°C. Autumns in Upper Carniola are fairly long, since the summers can be short. By December, the winter climate has definitely arrived and the season for winter sports begins, with soft, powdery snow and a surprising amount of sunshine across the Alpine skiing resorts. Spring is usually a little late, but by the end of April, flowers are blooming and the trees quickly burst back into life, with daytime temperatures staying above 10°C.

UPPER CARNIOLA YEARLY WEATHER SUMMARY

What’s the best time to visit Upper Carniola in Slovenia? Here are some facts:
– The months May, June, July, August and September have a nice average temperature.
– July is the warmest month with an average high of 25,3 °C and an average low of 13,3 °C.
– July is also the month with the most sunshine, with almost 9 hours per day.
– January is the coolest month with an average high of 3,0 °C and an average low of -5,6 °C.
– October and November are the wettest months with an average of 157 millimeters of precipitation.
– November and December are the most cloudy months with an average of 14 mostly cloudy days.
– January is the driest month with an average of 63 millimeters of precipitation.
– January is the month with the highest number of days with snow cover – 15 days.
– January is the month with the most snowfall, with a little over 32 centimetres on average.

For more specific information about the climate of Upper Carniola, Slovenia, please take a look at the graphs shown below.

A climate graph for Upper Carniola, Slovenia showing mean daily maximum and minimum temperature for a month and average monthly precipitation (rain/snow).

Graph showing average monthly hours of sunshine and average monthly number of cloudy days for Upper Carniola, Slovenia.

Graph showing average monthly number of days with precipitation, average monthly number of days with snow cover and average monthly snowfall (in cm) for Upper Carniola, Slovenia.

Graph showing average monthly number of hot and cold days for Upper Carniola, Slovenia.

Upper Carniola enjoys pleasant, sunny summers when days are long and temperatures can often exceed 25°C, particularly in July and August. Image by Matijap