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September Weather in Sumice, Czech Republic

Last updated: August 23, 2025

In Sumice, Czech Republic, the average temperature in September is a comfortable 15°C (60°F). You can expect minimum temperatures to dip to 1°C (34°F) and occasionally rise to a maximum of 30°C (86°F). During this month, precipitation averages around 92 mm (3.6 in), typically spread over 10 days, and the average humidity sits at a moderate 67%.

September Temperature in Sumice

In September in Sumice, the average temperature is 15°C (60°F). Maximum temperatures can reach 30°C (86°F), while minimum temperatures can drop to as low as 1°C (34°F). This mild climate makes it a great time for travelers to explore the region while enjoying comfortable weather.

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

The chart illustrates September temperature patterns in Sumice, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sumice, September typically has an average temperature of 15°C (60°F), with highs reaching up to 30°C (86°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec303540495767686959514234
Data source: Temperature data for Sumice 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 Sumice

In Sumice in September, the total precipitation amount is 92 mm (3.6 in), which falls over the course of 10 days.

September Precipitation Trends in Sumice

The chart displays monthly precipitation patterns in Sumice, 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 Sumice, September typically receives around 92 mm (3.6 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec434744449486929992685364
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Sumice

In Sumice in September, humidity is 67%. With an average temperature of 15°C (60°F), this humidity feels like a warm, slightly muggy embrace, making it feel a bit heavier as you travel. You may find yourself sweating a little more than usual, and staying hydrated becomes essential as you explore your surroundings.

September Average Humidity in Sumice

This chart illustrates the average monthly humidity levels in Sumice, 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 Sumice is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%87%83%76%70%71%67%64%67%83%90%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sumice

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

Maximum UV Index Levels in Sumice for September

The chart shows the monthly maximum UV Index (UVI) for Sumice 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 Sumice typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235678876421
Data source: Sumice 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 Sumice Compares to Other Months

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

This table compares monthly weather conditions in Sumice, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)43 mm (1.7 inches)90%low
February Weather2°C (35°F)47 mm (1.9 inches)87%moderate
March Weather5°C (40°F)44 mm (1.7 inches)83%moderate
April Weather9°C (49°F)44 mm (1.7 inches)76%high
May Weather14°C (57°F)94 mm (3.7 inches)70%high
June Weather19°C (67°F)86 mm (3.4 inches)71%very high
July Weather20°C (68°F)92 mm (3.6 inches)67%very high
August Weather20°C (69°F)99 mm (3.9 inches)64%high
September Weather15°C (60°F)92 mm (3.6 inches)67%high
October Weather10°C (51°F)68 mm (2.7 inches)83%moderate
November Weather6°C (42°F)53 mm (2.1 inches)90%low
December Weather1°C (35°F)64 mm (2.5 inches)91%low

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