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September Weather in Montezuma, United States

Last updated: June 24, 2025

In Montezuma, United States, the average temperature in September reaches a pleasant 20°C (68°F). Expect minimums to dip to 5°C (40°F) and highs soaring up to 33°C (92°F). With an average precipitation of 122 mm (4.8 in) over 9 days, the month also boasts a comfortable average humidity level of 73%.

September Temperature in Montezuma

In September in Montezuma, the average temperature is 20°C (68°F). Maximums can reach 33°C (92°F) and minimums can be as low as 5°C (40°F). Be prepared for a range of temperatures, making it ideal for both outdoor activities and cozy evenings.

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

The chart illustrates September temperature patterns in Montezuma, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Montezuma, September typically has an average temperature of 20°C (68°F), with highs reaching up to 33°C (92°F) and lows dropping to around 5°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec222440496374777368533831
Data source: Temperature data for Montezuma 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 Montezuma

In Montezuma in September, the precipitation amount is 122 mm (4.8 in) over a span of 9 days.

September Precipitation Trends in Montezuma

The chart displays monthly precipitation patterns in Montezuma, 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 Montezuma, September typically receives around 122 mm (4.8 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec4651847516312968581221345042
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Montezuma

In Montezuma in September, humidity is 73%. With an average temperature of 20°C (68°F), this humidity feels like a warm embrace, making outdoor activities somewhat sticky, yet the atmosphere remains pleasant for leisurely strolls and sightseeing.

September Average Humidity in Montezuma

This chart illustrates the average monthly humidity levels in Montezuma, 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 Montezuma is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%80%77%78%77%81%81%77%73%75%85%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Montezuma

In Montezuma in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Montezuma.

Maximum UV Index Levels in Montezuma for September

The chart shows the monthly maximum UV Index (UVI) for Montezuma 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 Montezuma typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35689111098643
Data source: Montezuma 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 Montezuma Compares to Other Months

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

This table compares monthly weather conditions in Montezuma, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (23°F)46 mm (1.8 inches)78%moderate
February Weather-4°C (24°F)51 mm (2.0 inches)80%moderate
March Weather4°C (40°F)84 mm (3.3 inches)77%high
April Weather10°C (50°F)75 mm (3.0 inches)77%very high
May Weather17°C (63°F)162 mm (6.4 inches)77%very high
June Weather23°C (74°F)129 mm (5.1 inches)81%extreme
July Weather25°C (77°F)68 mm (2.7 inches)81%very high
August Weather23°C (74°F)58 mm (2.3 inches)77%very high
September Weather20°C (68°F)122 mm (4.8 inches)73%very high
October Weather12°C (53°F)134 mm (5.3 inches)75%high
November Weather4°C (39°F)50 mm (2.0 inches)85%moderate
December Weather0°C (31°F)42 mm (1.7 inches)83%moderate

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