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September Weather in Merin, Czech Republic

Last updated: August 23, 2025

In September, the average temperature in Merin, Czech Republic hovers around 14°C (57°F). Expect chilly nights, as the temperature can dip to a brisk -1°C (31°F), while daytime highs may reach a pleasant 28°C (82°F). Be prepared for occasional rain, with an average precipitation of 92 mm (3.6 in) spread over 11 days, and enjoy the moderate average humidity of 75%.

September Temperature in Merin

In September in Merin, the average temperature is 14°C (57°F). The maximum can reach 28°C (82°F) and the minimum can be as low as -1°C (31°F). This makes Merin a great destination for travelers looking to experience mild weather while enjoying outdoor activities.

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

The chart illustrates September temperature patterns in Merin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Merin, September typically has an average temperature of 14°C (57°F), with highs reaching up to 28°C (82°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec293238465464656657493933
Data source: Temperature data for Merin 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 Merin

In Merin in September, the precipitation amount is 92 mm (3.6 in) spread over 11 days.

September Precipitation Trends in Merin

The chart displays monthly precipitation patterns in Merin, 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 Merin, September typically receives around 92 mm (3.6 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec444445429284928092684660
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Merin

In Merin in September, humidity is 75%. With an average temperature of 14°C (57°F), this humidity feels like a damp blanket enveloping you, making outdoor activities somewhat uncomfortable and travel a bit sluggish, as the air feels heavy and the heat lingers close to your skin.

September Average Humidity in Merin

This chart illustrates the average monthly humidity levels in Merin, 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 Merin 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 Merin

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

Maximum UV Index Levels in Merin for September

The chart shows the monthly maximum UV Index (UVI) for Merin 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 Merin typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689876421
Data source: Merin 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 Merin Compares to Other Months

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

This table compares monthly weather conditions in Merin, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)44 mm (1.7 inches)90%low
February Weather0°C (33°F)44 mm (1.7 inches)87%moderate
March Weather3°C (38°F)45 mm (1.8 inches)85%moderate
April Weather8°C (46°F)42 mm (1.7 inches)78%high
May Weather12°C (54°F)92 mm (3.6 inches)73%very high
June Weather18°C (64°F)84 mm (3.3 inches)77%very high
July Weather18°C (65°F)92 mm (3.6 inches)76%very high
August Weather19°C (66°F)80 mm (3.1 inches)76%high
September Weather14°C (57°F)92 mm (3.6 inches)75%high
October Weather9°C (49°F)68 mm (2.7 inches)85%moderate
November Weather4°C (40°F)46 mm (1.8 inches)90%low
December Weather0°C (33°F)59 mm (2.3 inches)91%low

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