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September Weather in Merkel, United States

Last updated: June 24, 2025

In September, the average temperature in Merkel, United States hovers around 25°C (78°F). However, temperatures can vary significantly, with a minimum of 7°C (45°F) and soaring to a maximum of 39°C (102°F). Expect an average precipitation of 67 mm (2.6 in) spread over about 7 days, while the air holds an average humidity of 69%.

September Temperature in Merkel

In September in Merkel, the average temperature is 25°C (78°F). Maximum temperatures can reach 39°C (102°F), while the minimum can drop to as low as 7°C (45°F). Be prepared for both warm days and cooler nights during your travels.

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

The chart illustrates September temperature patterns in Merkel, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Merkel, September typically has an average temperature of 25°C (78°F), with highs reaching up to 39°C (102°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec454859657582858477665550
Data source: Temperature data for Merkel 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 Merkel

In Merkel in September, the total precipitation amount is 67 mm (2.6 in) over a span of 7 days.

September Precipitation Trends in Merkel

The chart displays monthly precipitation patterns in Merkel, 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 Merkel, September typically receives around 67 mm (2.6 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec262256607148214367682423
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Merkel

In Merkel in September humidity is 69%. With an average temperature of 25°C (78°F), this humidity feels like a warm and tropical embrace, making traveling a bit sticky but also invigorating as each breath carries a hint of the surrounding environment, perfect for those who enjoy a lively and immersive journey.

September Average Humidity in Merkel

This chart illustrates the average monthly humidity levels in Merkel, 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 Merkel is approximately 69%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%74%66%70%75%79%78%71%69%70%82%82%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Merkel

In Merkel in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Merkel.

Maximum UV Index Levels in Merkel for September

The chart shows the monthly maximum UV Index (UVI) for Merkel 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 Merkel typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec479101112121110864
Data source: Merkel 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 Merkel Compares to Other Months

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

This table compares monthly weather conditions in Merkel, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)26 mm (1.0 inches)75%moderate
February Weather9°C (48°F)22 mm (0.9 inches)74%high
March Weather15°C (60°F)56 mm (2.2 inches)66%very high
April Weather18°C (65°F)60 mm (2.4 inches)70%very high
May Weather24°C (75°F)71 mm (2.8 inches)75%extreme
June Weather28°C (82°F)48 mm (1.9 inches)79%extreme
July Weather30°C (86°F)21 mm (0.8 inches)78%extreme
August Weather29°C (85°F)43 mm (1.7 inches)71%extreme
September Weather25°C (78°F)67 mm (2.6 inches)69%very high
October Weather19°C (67°F)68 mm (2.7 inches)70%very high
November Weather13°C (55°F)24 mm (1.0 inches)82%high
December Weather10°C (50°F)23 mm (0.9 inches)82%moderate

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