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September Weather in Kozje, Slovenia

Last updated: August 27, 2025

In September, the average temperature in Kozje, Slovenia is a pleasant 17°C (63°F). Expect a range that can dip to a chilly 3°C (37°F) and rise to a warm 33°C (91°F). With an average humidity of 62%, the weather can feel quite refreshing. Be prepared for 126 mm (4.9 in) of precipitation spread over about 11 days, so bringing an umbrella might be a good idea!

September Temperature in Kozje

In September in Kozje, the average temperature is 17°C (63°F). Maximum temperatures can reach 33°C (91°F), while the minimum can drop as low as 3°C (37°F). It's advisable to pack layers to accommodate the varying temperatures during your travels.

September Weather in Kozje: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Kozje, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kozje, September typically has an average temperature of 17°C (63°F), with highs reaching up to 33°C (91°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec344045536070727263544537
Data source: Temperature data for Kozje 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.

September Precipitation in Kozje

In Kozje in September, the precipitation amount is 126 mm (4.9 in) over the course of 11 days.

September Precipitation Trends in Kozje

The chart displays monthly precipitation patterns in Kozje, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Kozje, September typically receives around 126 mm (4.9 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec40655470141909688126799689
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Kozje

In Kozje in September humidity is 62%. With an average temperature of 17°C (63°F), this humidity feels like a refreshing embrace, making it pleasant for traveling as long as you stay hydrated and take breaks in the shade.

September Average Humidity in Kozje

This chart illustrates the average monthly humidity levels in Kozje, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Kozje is approximately 62%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%83%75%72%70%69%64%51%62%81%87%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kozje

In Kozje in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Kozje, you can refer to this Hourly UV Index in Kozje.

Maximum UV Index Levels in Kozje for September

The chart shows the monthly maximum UV Index (UVI) for Kozje in September, 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 September, the maximum UV index in Kozje typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986532
Data source: Kozje September 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 September Weather in Kozje Compares to Other Months

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

This table compares monthly weather conditions in Kozje, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)40 mm (1.6 inches)89%low
February Weather4°C (40°F)65 mm (2.5 inches)83%moderate
March Weather7°C (45°F)54 mm (2.1 inches)75%moderate
April Weather12°C (53°F)70 mm (2.7 inches)72%high
May Weather16°C (61°F)141 mm (5.6 inches)70%very high
June Weather21°C (70°F)90 mm (3.6 inches)69%very high
July Weather22°C (72°F)96 mm (3.8 inches)64%very high
August Weather22°C (73°F)88 mm (3.5 inches)51%very high
September Weather17°C (63°F)126 mm (4.9 inches)62%high
October Weather12°C (54°F)79 mm (3.1 inches)81%moderate
November Weather7°C (45°F)96 mm (3.8 inches)87%moderate
December Weather3°C (37°F)89 mm (3.5 inches)88%low

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