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September Weather in Agua Fria, United States

Last updated: June 24, 2025

In September, the average temperature in Agua Fria, United States is a pleasant 18°C (65°F). You can expect temperatures to range from a cool 2°C (36°F) at night to a warm 33°C (92°F) during the day. Be prepared for a bit of rain, with 27 mm (1.1 in) of precipitation expected over 3 days. Don't forget to stay hydrated, as the average humidity hovers around 72%!

September Temperature in Agua Fria

In September, in Agua Fria, the average temperature is 18°C (65°F). The maximum can reach 33°C (92°F), while the minimum can be as low as 2°C (36°F). This temperature range makes Agua Fria an ideal destination for travelers seeking both warm days and cool nights.

September Weather in Agua Fria: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Agua Fria, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Agua Fria, September typically has an average temperature of 18°C (65°F), with highs reaching up to 33°C (92°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec303343516070727065524133
Data source: Temperature data for Agua Fria 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 Agua Fria

In Agua Fria in September, the total precipitation amount is 27 mm (1.1 in) over the course of 3 days.

September Precipitation Trends in Agua Fria

The chart displays monthly precipitation patterns in Agua Fria, 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 Agua Fria, September typically receives around 27 mm (1.1 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec232424271717422827302118
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Agua Fria

In Agua Fria in September humidity is 72%. With an average temperature of 18°C (65°F), this humidity feels like a warm, sticky embrace, making traveling somewhat uncomfortable as the air clings to your skin and the heat can be stifling, yet it's perfect for enjoying leisurely strolls under the shade.

September Average Humidity in Agua Fria

This chart illustrates the average monthly humidity levels in Agua Fria, 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 Agua Fria is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%79%66%60%57%55%57%65%72%78%81%79%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Agua Fria

In Agua Fria in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Agua Fria.

Maximum UV Index Levels in Agua Fria for September

The chart shows the monthly maximum UV Index (UVI) for Agua Fria 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 Agua Fria typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec589111213131211854
Data source: Agua Fria 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 Agua Fria Compares to Other Months

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

This table compares monthly weather conditions in Agua Fria, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)23 mm (0.9 inches)78%moderate
February Weather1°C (34°F)24 mm (0.9 inches)79%very high
March Weather6°C (43°F)24 mm (0.9 inches)66%very high
April Weather11°C (51°F)27 mm (1.1 inches)60%extreme
May Weather16°C (60°F)17 mm (0.7 inches)57%extreme
June Weather21°C (70°F)16 mm (0.6 inches)55%extreme
July Weather22°C (72°F)42 mm (1.6 inches)56%extreme
August Weather21°C (71°F)28 mm (1.1 inches)65%extreme
September Weather18°C (65°F)27 mm (1.1 inches)72%extreme
October Weather11°C (52°F)30 mm (1.2 inches)78%very high
November Weather5°C (42°F)21 mm (0.8 inches)81%moderate
December Weather1°C (33°F)18 mm (0.7 inches)79%moderate

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