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September Weather in Berthold, United States

Last updated: June 24, 2025

In Berthold, United States, the average temperature for September hovers around 14°C (58°F). However, be prepared for a range, as temperatures can dip to a chilly -2°C (28°F) or soar to a warm 33°C (93°F). During this month, expect about 66 mm (2.6 in) of precipitation over 7 days, alongside an average humidity level of 71%. Plan accordingly to make the most of your visit!

September Temperature in Berthold

In September in Berthold, the average temperature is 14°C (58°F), with maximums reaching up to 33°C (93°F) and minimums dropping as low as -2°C (28°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack accordingly for both warm days and cooler nights.

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

The chart illustrates September temperature patterns in Berthold, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Berthold, September typically has an average temperature of 14°C (58°F), with highs reaching up to 33°C (93°F) and lows dropping to around -2°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec12927375466716758412818
Data source: Temperature data for Berthold 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 Berthold

In Berthold in September, the precipitation amount is 66 mm (2.6 in) over a period of 7 days.

September Precipitation Trends in Berthold

The chart displays monthly precipitation patterns in Berthold, 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 Berthold, September typically receives around 66 mm (2.6 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec131626283574656066382421
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Berthold

In Berthold in September humidity is 71%. With an average temperature of 14°C (58°F), this humidity feels like a damp embrace, making it essential for travelers to pack light, breathable clothing and stay hydrated while exploring the sights.

September Average Humidity in Berthold

This chart illustrates the average monthly humidity levels in Berthold, 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 Berthold is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%91%87%78%73%71%76%77%71%75%84%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Berthold

In Berthold in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Berthold.

Maximum UV Index Levels in Berthold for September

The chart shows the monthly maximum UV Index (UVI) for Berthold 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 Berthold typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245989987422
Data source: Berthold 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 Berthold Compares to Other Months

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

This table compares monthly weather conditions in Berthold, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-11°C (12°F)12 mm (0.5 inches)89%low
February Weather-13°C (9°F)16 mm (0.6 inches)91%moderate
March Weather-3°C (27°F)26 mm (1.0 inches)87%moderate
April Weather3°C (37°F)28 mm (1.1 inches)78%very high
May Weather12°C (54°F)35 mm (1.4 inches)73%very high
June Weather19°C (66°F)74 mm (2.9 inches)71%very high
July Weather21°C (71°F)65 mm (2.5 inches)76%very high
August Weather20°C (68°F)60 mm (2.3 inches)77%very high
September Weather14°C (58°F)66 mm (2.6 inches)71%high
October Weather5°C (42°F)38 mm (1.5 inches)75%moderate
November Weather-2°C (28°F)24 mm (0.9 inches)84%low
December Weather-8°C (19°F)21 mm (0.8 inches)92%low

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