Cool
Average highs are around 3°C, so pack for cooler days.
December verdict
Ljubljana, Slovenia in December
Weather score19Poor
Poor for holiday weather
Average highs are around 3°C, so pack for cooler days. Sunshine averages 2h per day, so this is not one of the brighter months. Rainfall averages 109mm, so some wet days are possible.
December weather
Monthly averages
Temp
3°C
Rain
109mm
Sun
2h
Weather score
19
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 109mm, so some wet days are possible.
Limited sun
Sunshine averages 2h per day, so this is not one of the brighter months.
Map
Weather map
Compare Ljubljana, Slovenia with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
December3°C average high
December has some of the coolest average daytime highs of the year, so pack for fresher conditions.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
December109mm average rain
December sits near Ljubljana's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to March and December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
December2 hours average sun
December is one of Ljubljana's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Weather score
December19 weather score
December is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.
