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September Weather in Underwood, United States

Last updated: June 24, 2025

In Underwood, United States, the average temperature in September hovers around 15°C (60°F), offering a pleasant climate for outdoor activities. However, be prepared for temperature swings, with minimums dipping to 0°C (32°F) and peaks reaching up to 35°C (96°F). Expect about 63 mm (2.5 in) of precipitation over approximately 6 days, contributing to an average humidity level of 69%. Whether you're exploring or relaxing, this month presents a unique blend of weather conditions!

September Temperature in Underwood

In September in Underwood, the average temperature is 15°C (60°F). Maximum temperatures can reach 35°C (96°F), while minimums can dip as low as 0°C (32°F). Be prepared for a wide range of temperatures if you're planning to travel during this time.

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

The chart illustrates September temperature patterns in Underwood, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Underwood, September typically has an average temperature of 15°C (60°F), with highs reaching up to 35°C (96°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec131128385568726959433020
Data source: Temperature data for Underwood 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 Underwood

In Underwood in September, the precipitation amount is 63 mm (2.5 in) spread over a duration of 6 days.

September Precipitation Trends in Underwood

The chart displays monthly precipitation patterns in Underwood, 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 Underwood, September typically receives around 63 mm (2.5 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec131726274465626163441921
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Underwood

In Underwood in September, humidity is 69%. With an average temperature of 15°C (60°F), this humidity feels like a cool, damp embrace that can make outdoor activities feel slightly heavier and more exhausting, but still inviting for exploring the charming sights and sounds of the area.

September Average Humidity in Underwood

This chart illustrates the average monthly humidity levels in Underwood, 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 Underwood is approximately 69%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%88%78%75%76%79%78%78%69%71%82%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Underwood

In Underwood 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 Underwood.

Maximum UV Index Levels in Underwood for September

The chart shows the monthly maximum UV Index (UVI) for Underwood 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 Underwood typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2459810987532
Data source: Underwood 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 Underwood Compares to Other Months

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

This table compares monthly weather conditions in Underwood, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-10°C (13°F)13 mm (0.5 inches)84%low
February Weather-12°C (11°F)16 mm (0.6 inches)88%moderate
March Weather-2°C (28°F)26 mm (1.0 inches)78%moderate
April Weather3°C (39°F)27 mm (1.0 inches)75%very high
May Weather13°C (55°F)43 mm (1.7 inches)76%very high
June Weather20°C (68°F)65 mm (2.6 inches)79%very high
July Weather22°C (72°F)62 mm (2.4 inches)78%very high
August Weather20°C (69°F)61 mm (2.4 inches)78%very high
September Weather15°C (60°F)63 mm (2.5 inches)69%high
October Weather6°C (43°F)44 mm (1.7 inches)71%moderate
November Weather-1°C (30°F)19 mm (0.8 inches)82%moderate
December Weather-7°C (20°F)21 mm (0.8 inches)84%low

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