September Weather in Kostice, Czech Republic

Last updated: August 23, 2025

In Kostice, Czech Republic, the average temperature in September hovers around 15°C (59°F). Expect a wide range in temperatures, with minimums dipping to 1°C (33°F) and maximums reaching up to 31°C (89°F). Be prepared for 52 mm (2.0 in) of precipitation over the course of 9 days, and keep in mind the high average humidity of 81% for a truly immersive experience!

September Temperature in Kostice

In September in Kostice, the average temperature is 15°C (59°F). Maximums can reach 31°C (89°F) and minimums can be as low as 1°C (33°F). This makes it a great time for travelers to enjoy a diverse range of outdoor activities, from warm sunny days to cooler evenings.

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

The chart illustrates September temperature patterns in Kostice, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kostice, September typically has an average temperature of 15°C (59°F), with highs reaching up to 31°C (89°F) and lows dropping to around 1°C (33°F).

Data source: Temperature data for Kostice generated using information from the Copernicus Climate Change Service.

September Precipitation in Kostice

In Kostice in September, the precipitation amount is 52 mm (2.0 in) over a span of 9 days.

September Precipitation Trends in Kostice

The chart displays monthly precipitation patterns in Kostice, 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 Kostice, September typically receives around 52 mm (2.0 inches) of precipitation spread over approximately 9 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Kostice

In Kostice in September humidity is 81%. With an average temperature of 15°C (59°F), this humidity feels like a heavy blanket draped over you, making traveling quite uncomfortable as you constantly wipe away beads of sweat and feel the stickiness clinging to your clothes.

September Average Humidity in Kostice

This chart illustrates the average monthly humidity levels in Kostice, 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 Kostice is approximately 81%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kostice

In Kostice 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 Kostice, you can refer to this Hourly UV Index in Kostice.

Maximum UV Index Levels in Kostice for September

The chart shows the monthly maximum UV Index (UVI) for Kostice 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 Kostice typically reaches 6, which falls under the high exposure category.

Data source: Kostice 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 Kostice Compares to Other Months

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

This table compares monthly weather conditions in Kostice, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	1°C (33°F)	38 mm (1.5 inches)	90%	low
February Weather	2°C (35°F)	40 mm (1.6 inches)	89%	low
March Weather	4°C (40°F)	41 mm (1.6 inches)	87%	moderate
April Weather	9°C (49°F)	27 mm (1.1 inches)	81%	moderate
May Weather	14°C (57°F)	60 mm (2.4 inches)	71%	very high
June Weather	20°C (67°F)	56 mm (2.2 inches)	75%	very high
July Weather	20°C (68°F)	52 mm (2.0 inches)	74%	very high
August Weather	20°C (68°F)	75 mm (3.0 inches)	76%	high
September Weather	15°C (59°F)	52 mm (2.0 inches)	81%	high
October Weather	10°C (50°F)	52 mm (2.1 inches)	85%	moderate
November Weather	5°C (41°F)	36 mm (1.4 inches)	88%	low
December Weather	2°C (36°F)	46 mm (1.8 inches)	92%	low