ClimateForecastDecemberJanuary >>

Ilirska Bistrica Climate by Month

The climate in Ilirska Bistrica is marked by big temperature swings throughout the year. Temperatures range from warm during the warmest months to cold in the cooler months. It also has a relatively rain/snowy climate with high levels of precipitation. Let’s explore the climate details in depth to provide you with a complete overview.

Average day and night temperature

In Ilirska Bistrica, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a comfortable 26°C in July to a chilly 5°C in January. Nighttime temperatures can drop, with averages reaching -2°C in January.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Ilirska Bistrica experiences significant rain/snowfall throughout the year, averaging 1839 mm of precipitation annually. The amount of precipitation varies moderately throughout the year. The wettest month, November, sees around 215 mm of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, January, still receives a respectable 107 mm of snow/rainfall.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

In Ilirska Bistrica, summer days are longer and more sunny, with daily sunshine hours peaking at 9.9 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 3.3 hours per average day.

Monthly hours of sunshine

Data from: Rijeka, Croatia (28 KM, 17 Miles).

Daily hours of sunshine

Data from: Rijeka, Croatia (28 KM, 17 Miles).

The best time of year to visit Ilirska Bistrica in Slovenia

During the months of June and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • When is the rainy season in Ilirska Bistrica?
    Rainy season in Ilirska Bistrica occurs in the months of May, September, October, November and December.
  • Which is the warmest month in Ilirska Bistrica?
    August has an average maximum temperature of 26°C and is the warmest month of the year.
  • Which is the coldest month in Ilirska Bistrica?
    The coldest month is January with an average maximum temperature of 5°C.
  • Which is the wettest month in Ilirska Bistrica?
    November tops the wettest month list with 215 mm of rainfall.
  • Which is the driest month in Ilirska Bistrica?
    January is the driest month with 107 mm of precipitation.
  • Which is the sunniest month in Ilirska Bistrica?
    July is the sunniest month with an average of 298 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for Ilirska Bistrica

    Sat   Dec 14
    5°C | 0°C
    NW 7 km/h
    8.9 mm
    broken clouds and rain

    broken clouds and rain

    Sun   Dec 15
    8°C | -2°C
    NE 11 km/h
    clear and no rain

    clear and no rain

    Mon   Dec 16
    9°C | -2°C
    SE 4 km/h
    almost clear and no rain

    almost clear and no rain