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June Weather in Kostel, Slovenia

Last updated: August 27, 2025

In Kostel, Slovenia, the average temperature in June hovers around 19°C (66°F). Expect temperatures to vary, with a minimum of 5°C (42°F) and a maximum reaching up to 33°C (92°F). This month also brings about 108 mm (4.3 in) of precipitation, typically spread over 15 days, resulting in an average humidity of 69%.

June Temperature in Kostel

In June in Kostel, the average temperature is 19°C (66°F). Maximums can reach 33°C (92°F), while minimums can drop to as low as 5°C (42°F). This diverse climate makes Kostel an ideal destination for travelers seeking both warmth and cooler respite.

June Weather in Kostel: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Kostel, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kostel, June typically has an average temperature of 19°C (66°F), with highs reaching up to 33°C (92°F) and lows dropping to around 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec313741485666686859514335
Data source: Temperature data for Kostel 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.

June Precipitation in Kostel

In Kostel in June, the precipitation amount is 108 mm (4.3 in) over the course of 15 days.

June Precipitation Trends in Kostel

The chart displays monthly precipitation patterns in Kostel, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Kostel, June typically receives around 108 mm (4.3 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec7110981110183108142109159119127139
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Kostel

In Kostel in June humidity is 69%. With an average temperature of 19°C (66°F), this humidity feels like a warm embrace, making travel slightly uncomfortable as the air hangs heavy and the heat clings to your skin, urging you to seek shade or refreshment often.

June Average Humidity in Kostel

This chart illustrates the average monthly humidity levels in Kostel, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Kostel is approximately 69%, 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 June generated using information from the Copernicus Climate Change Service.

June UV Index in Kostel

In Kostel in June, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Kostel.

Maximum UV Index Levels in Kostel for June

The chart shows the monthly maximum UV Index (UVI) for Kostel in June, 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 June, the maximum UV index in Kostel typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789987532
Data source: Kostel June 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 June Weather in Kostel Compares to Other Months

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

This table compares monthly weather conditions in Kostel, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)71 mm (2.8 inches)88%low
February Weather3°C (37°F)109 mm (4.3 inches)82%moderate
March Weather5°C (41°F)81 mm (3.2 inches)73%moderate
April Weather9°C (49°F)110 mm (4.3 inches)73%high
May Weather13°C (56°F)183 mm (7.2 inches)70%very high
June Weather19°C (66°F)108 mm (4.3 inches)69%very high
July Weather20°C (68°F)142 mm (5.6 inches)63%very high
August Weather20°C (68°F)109 mm (4.3 inches)51%very high
September Weather15°C (59°F)159 mm (6.3 inches)64%high
October Weather10°C (51°F)119 mm (4.7 inches)83%moderate
November Weather6°C (43°F)127 mm (5.0 inches)89%moderate
December Weather2°C (36°F)139 mm (5.5 inches)88%low

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