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September Weather in Sumperk, Czech Republic

Last updated: August 23, 2025

In September, the average temperature in Sumperk, Czech Republic hovers around 13°C (56°F). Expect minimums to dip as low as -2°C (30°F) and maximums to soar up to 28°C (83°F). With an average precipitation of 89 mm (3.5 in) spread over 12 days and an average humidity of 75%, this month brings a blend of cool days and occasional rain.

September Temperature in Sumperk

In September in Sumperk, the average temperature is 13°C (56°F). The maximum can reach 28°C (83°F), while the minimum can drop as low as -2°C (30°F). Be prepared for a range of weather when traveling, as you'll experience both mild and chilly conditions.

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

The chart illustrates September temperature patterns in Sumperk, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sumperk, September typically has an average temperature of 13°C (56°F), with highs reaching up to 28°C (83°F) and lows dropping to around -2°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec273036445363636456473931
Data source: Temperature data for Sumperk 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 Sumperk

In Sumperk in September, the precipitation amount is 89 mm (3.5 in) during 12 days of rainfall.

September Precipitation Trends in Sumperk

The chart displays monthly precipitation patterns in Sumperk, 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 Sumperk, September typically receives around 89 mm (3.5 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec505754479599989389765471
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Sumperk

In Sumperk in September humidity is 75%. With an average temperature of 13°C (56°F), this humidity feels like a damp chill enveloping you, making travel a bit uncomfortable, as the moisture in the air clings to your skin and can dampen your spirits as well as your clothes.

September Average Humidity in Sumperk

This chart illustrates the average monthly humidity levels in Sumperk, 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 Sumperk is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%87%85%78%74%77%76%76%75%85%90%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sumperk

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

Maximum UV Index Levels in Sumperk for September

The chart shows the monthly maximum UV Index (UVI) for Sumperk 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 Sumperk typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235678876422
Data source: Sumperk 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 Sumperk Compares to Other Months

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

This table compares monthly weather conditions in Sumperk, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)50 mm (2.0 inches)90%low
February Weather-1°C (31°F)57 mm (2.2 inches)87%moderate
March Weather2°C (36°F)53 mm (2.1 inches)85%moderate
April Weather7°C (45°F)47 mm (1.8 inches)78%high
May Weather11°C (53°F)95 mm (3.8 inches)73%high
June Weather17°C (63°F)99 mm (3.9 inches)77%very high
July Weather17°C (64°F)98 mm (3.9 inches)76%very high
August Weather18°C (65°F)93 mm (3.7 inches)76%high
September Weather13°C (56°F)89 mm (3.5 inches)75%high
October Weather8°C (48°F)76 mm (3.0 inches)85%moderate
November Weather4°C (39°F)54 mm (2.1 inches)90%low
December Weather-1°C (31°F)71 mm (2.8 inches)91%low

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