September Weather in Sierra Vista Southeast, United States

Last updated: June 24, 2025

In Sierra Vista Southeast, United States, the average temperature in September is a comfortable 23°C (74°F). Temperatures can fluctuate, with a minimum around 10°C (49°F) and a maximum reaching 35°C (95°F). During this month, expect 36 mm (1.4 in) of precipitation spread over about 5 days, alongside an average humidity level of 72%.

September Temperature in Sierra Vista Southeast

In September in Sierra Vista Southeast, the average temperature is a pleasant 23°C (74°F). The maximum can reach a scorching 35°C (95°F), while the minimum can drop to a cool 10°C (49°F). This makes Sierra Vista Southeast an ideal destination for travelers seeking warm weather with the option to enjoy cooler evenings.

September Weather in Sierra Vista Southeast: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Sierra Vista Southeast, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sierra Vista Southeast, September typically has an average temperature of 23°C (74°F), with highs reaching up to 35°C (95°F) and lows dropping to around 10°C (49°F).

Data source: Temperature data for Sierra Vista Southeast generated using information from the Copernicus Climate Change Service.

September Precipitation in Sierra Vista Southeast

In Sierra Vista Southeast in September, the precipitation amount is 36 mm (1.4 in) over the course of 5 days.

September Precipitation Trends in Sierra Vista Southeast

The chart displays monthly precipitation patterns in Sierra Vista Southeast, 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 Sierra Vista Southeast, September typically receives around 36 mm (1.4 inches) of precipitation spread over approximately 5 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Sierra Vista Southeast

In Sierra Vista Southeast in September humidity is 72%. With an average temperature of 23°C (74°F), this humidity feels like a warm, enveloping blanket that clings to the skin, making outdoor activities a challenge but offering a refreshing atmosphere for leisurely strolls in the shade.

September Average Humidity in Sierra Vista Southeast

This chart illustrates the average monthly humidity levels in Sierra Vista Southeast, 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 Sierra Vista Southeast is approximately 72%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sierra Vista Southeast

In Sierra Vista Southeast 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 Sierra Vista Southeast.

Maximum UV Index Levels in Sierra Vista Southeast for September

The chart shows the monthly maximum UV Index (UVI) for Sierra Vista Southeast 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 Sierra Vista Southeast typically reaches 11, which falls under the extreme exposure category.

Data source: Sierra Vista Southeast 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 Sierra Vista Southeast Compares to Other Months

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

This table compares monthly weather conditions in Sierra Vista Southeast, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (47°F)	20 mm (0.8 inches)	74%	moderate
February Weather	9°C (49°F)	25 mm (1.0 inches)	71%	high
March Weather	13°C (55°F)	17 mm (0.7 inches)	60%	very high
April Weather	17°C (64°F)	4 mm (0.2 inches)	43%	extreme
May Weather	21°C (71°F)	3 mm (0.1 inches)	32%	extreme
June Weather	27°C (81°F)	8 mm (0.3 inches)	28%	extreme
July Weather	26°C (79°F)	89 mm (3.5 inches)	38%	extreme
August Weather	25°C (78°F)	71 mm (2.8 inches)	60%	extreme
September Weather	23°C (74°F)	36 mm (1.4 inches)	72%	extreme
October Weather	18°C (65°F)	18 mm (0.7 inches)	66%	very high
November Weather	14°C (57°F)	27 mm (1.1 inches)	74%	high
December Weather	9°C (48°F)	22 mm (0.9 inches)	81%	moderate