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April Weather in Ilirska Bistrica, Slovenia

Last updated: August 27, 2025

In April, the average temperature in Ilirska Bistrica, Slovenia hovers around 10°C (51°F), with a minimum of -7°C (20°F) and a pleasant maximum of 25°C (77°F). Expect 136 mm (5.4 in) of precipitation spread over 11 days, contributing to an average humidity of 73%. Weather in this region can be both crisp and refreshing!

April Temperature in Ilirska Bistrica

In April in Ilirska Bistrica, the average temperature is 10°C (51°F). The maximum can reach 25°C (77°F), while the minimum can drop as low as -7°C (20°F). Be prepared for a wide range of temperatures if you're planning to travel during this time.

April Weather in Ilirska Bistrica: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Ilirska Bistrica, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ilirska Bistrica, April typically has an average temperature of 10°C (51°F), with highs reaching up to 25°C (77°F) and lows dropping to around -7°C (20°F).
JanFebMarAprMayJunJulAugSepOctNovDec343943505868707061534537
Data source: Temperature data for Ilirska Bistrica generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Ilirska Bistrica

In Ilirska Bistrica in April, the total precipitation amount reaches 136 mm (5.4 in) over the course of 11 days.

April Precipitation Trends in Ilirska Bistrica

The chart displays monthly precipitation patterns in Ilirska Bistrica, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Ilirska Bistrica, April typically receives around 136 mm (5.4 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec91175128136214110117120219170217205
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Ilirska Bistrica

In Ilirska Bistrica in April, humidity is 73%. With an average temperature of 10°C (51°F), this humidity feels like a chilly dampness that can make outdoor activities uncomfortable, causing your clothes to cling to your skin and a persistent coolness that seeps into your bones, which might deter long excursions without proper layering.

April Average Humidity in Ilirska Bistrica

This chart illustrates the average monthly humidity levels in Ilirska Bistrica, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Ilirska Bistrica is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%82%73%73%70%69%63%51%64%83%89%88%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Ilirska Bistrica

In Ilirska Bistrica in April, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Ilirska Bistrica.

Maximum UV Index Levels in Ilirska Bistrica for April

The chart shows the monthly maximum UV Index (UVI) for Ilirska Bistrica in April, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In April, the maximum UV index in Ilirska Bistrica typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789987532
Data source: Ilirska Bistrica April UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How April Weather in Ilirska Bistrica Compares to Other Months

Weather in Ilirska Bistrica varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Ilirska Bistrica, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Ilirska Bistrica, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)91 mm (3.6 inches)88%low
February Weather4°C (39°F)175 mm (6.9 inches)82%moderate
March Weather6°C (43°F)128 mm (5.0 inches)73%moderate
April Weather10°C (51°F)136 mm (5.4 inches)73%high
May Weather14°C (58°F)214 mm (8.4 inches)70%very high
June Weather20°C (68°F)110 mm (4.3 inches)69%very high
July Weather21°C (70°F)117 mm (4.6 inches)63%very high
August Weather21°C (71°F)120 mm (4.7 inches)51%very high
September Weather16°C (62°F)219 mm (8.6 inches)64%high
October Weather12°C (53°F)170 mm (6.7 inches)83%moderate
November Weather7°C (45°F)217 mm (8.5 inches)89%moderate
December Weather3°C (38°F)205 mm (8.1 inches)88%low

Compare Ilirska Bistrica's Climate with Cities Worldwide