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September Weather in Navajo, United States

Last updated: June 24, 2025

In Navajo, United States, the average temperature in September is a pleasant 15°C (60°F). Expect a range of conditions, with minimum temperatures potentially dropping to -3°C (27°F) and peaks reaching up to 31°C (88°F). During this time, 53 mm (2.1 in) of precipitation falls over an average of 7 days, contributing to an average humidity of 70%. Stay prepared for both warmth and occasional rain!

September Temperature in Navajo

In September in Navajo, the average temperature is 15°C (60°F). The maximum can reach 31°C (88°F) and the minimum can be as low as -3°C (27°F). Be prepared for a wide range of temperatures and pack accordingly for your trip!

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

The chart illustrates September temperature patterns in Navajo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Navajo, September typically has an average temperature of 15°C (60°F), with highs reaching up to 31°C (88°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec212533435364686659463523
Data source: Temperature data for Navajo 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 Navajo

In Navajo in September, the total precipitation amount is 53 mm (2.1 in) spread over a period of 7 days.

September Precipitation Trends in Navajo

The chart displays monthly precipitation patterns in Navajo, 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 Navajo, September typically receives around 53 mm (2.1 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec677483304329442553693864
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Navajo

In Navajo in September humidity is 70%. With an average temperature of 15°C (60°F), this humidity feels like a warm, sticky embrace that can quickly lead to discomfort while traveling, making it important to stay hydrated and take breaks in the shade.

September Average Humidity in Navajo

This chart illustrates the average monthly humidity levels in Navajo, 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 Navajo is approximately 70%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%84%75%68%62%55%54%61%70%78%81%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Navajo

In Navajo 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 Navajo.

Maximum UV Index Levels in Navajo for September

The chart shows the monthly maximum UV Index (UVI) for Navajo 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 Navajo typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec4710121213131210864
Data source: Navajo 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 Navajo Compares to Other Months

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

This table compares monthly weather conditions in Navajo, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)67 mm (2.6 inches)84%moderate
February Weather-4°C (26°F)74 mm (2.9 inches)84%high
March Weather0°C (33°F)83 mm (3.3 inches)74%very high
April Weather6°C (43°F)30 mm (1.2 inches)68%extreme
May Weather12°C (53°F)43 mm (1.7 inches)62%extreme
June Weather18°C (64°F)29 mm (1.2 inches)55%extreme
July Weather20°C (68°F)44 mm (1.7 inches)54%extreme
August Weather19°C (66°F)25 mm (1.0 inches)61%extreme
September Weather15°C (60°F)53 mm (2.1 inches)70%very high
October Weather8°C (46°F)69 mm (2.7 inches)78%very high
November Weather2°C (35°F)38 mm (1.5 inches)81%high
December Weather-5°C (23°F)64 mm (2.5 inches)85%moderate

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