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May Weather in Ilirska Bistrica, Slovenia

Last updated: August 27, 2025

In Ilirska Bistrica, Slovenia, the average temperature in May hovers around 14°C (58°F). Expect a minimum chill of 3°C (37°F) and a warm maximum of 26°C (79°F). However, prepare for frequent rain, with an average precipitation of 214 mm (8.4 in) spread over 21 days. Despite this, the average humidity remains a comfortable 70%, adding a touch of warmth to the otherwise refreshing atmosphere.

May Temperature in Ilirska Bistrica

In May in Ilirska Bistrica, the average temperature is 14°C (58°F), with maximums reaching up to 26°C (79°F) and minimums dropping as low as 3°C (37°F). This mild climate makes it an ideal time for travelers to explore the outdoors and enjoy the local attractions.

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

The chart illustrates May 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, May typically has an average temperature of 14°C (58°F), with highs reaching up to 26°C (79°F) and lows dropping to around 3°C (37°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.

May Precipitation in Ilirska Bistrica

In Ilirska Bistrica in May, the precipitation amount is 214 mm (8.4 in) over a span of 21 days.

May Precipitation Trends in Ilirska Bistrica

The chart displays monthly precipitation patterns in Ilirska Bistrica, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Ilirska Bistrica, May typically receives around 214 mm (8.4 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec91175128136214110117120219170217205
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Ilirska Bistrica

In Ilirska Bistrica in May, humidity is 70%. With an average temperature of 14°C (58°F), this humidity feels like a damp embrace that can make outdoor activities feel sticky and exhausting, potentially limiting your exploration to cooler hours of the day.

May Average Humidity in Ilirska Bistrica

This chart illustrates the average monthly humidity levels in Ilirska Bistrica, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Ilirska Bistrica is approximately 70%, 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 May generated using information from the Copernicus Climate Change Service.

May UV Index in Ilirska Bistrica

In Ilirska Bistrica in May, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Ilirska Bistrica.

Maximum UV Index Levels in Ilirska Bistrica for May

The chart shows the monthly maximum UV Index (UVI) for Ilirska Bistrica in May, 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 May, the maximum UV index in Ilirska Bistrica typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789987532
Data source: Ilirska Bistrica May 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 May 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 May’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 May’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

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