August Weather in Sierra Vista, United States

Last updated: June 24, 2025

In August, the average temperature in Sierra Vista, United States is a pleasant 25°C (78°F), making it a great time to explore. Expect a range in temperatures, with minimums dipping to 15°C (59°F) and highs soaring up to 38°C (101°F). However, be prepared for some rainy days, as 71 mm (2.8 in) of precipitation can occur over about 13 days. With an average humidity of 60%, staying hydrated is key to enjoying all that this destination has to offer!

August Temperature in Sierra Vista

In August in Sierra Vista, the average temperature is 25°C (78°F), with maximums reaching 38°C (101°F) and minimums dropping to as low as 15°C (59°F). Travelers should be prepared for warm days and cooler evenings, making it a great time for outdoor activities.

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

The chart illustrates August temperature patterns in Sierra Vista, 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, August typically has an average temperature of 25°C (78°F), with highs reaching up to 38°C (101°F) and lows dropping to around 15°C (59°F).

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

August Precipitation in Sierra Vista

In Sierra Vista in August, the total precipitation amount is 71 mm (2.8 in) occurring over the course of 13 days.

August Precipitation Trends in Sierra Vista

The chart displays monthly precipitation patterns in Sierra Vista, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Sierra Vista, August typically receives around 71 mm (2.8 inches) of precipitation spread over approximately 13 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

August Humidity in Sierra Vista

In Sierra Vista in August humidity is 60%. With an average temperature of 25°C (78°F), this humidity feels like a warm embrace, making travel comfortable yet slightly sticky, where every step brings a refreshing breeze that dances around you, inviting exploration while reminding you to stay hydrated.

August Average Humidity in Sierra Vista

This chart illustrates the average monthly humidity levels in Sierra Vista, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Sierra Vista is approximately 60%, offering insight into how humid the weather typically is during this month.

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

August UV Index in Sierra Vista

In Sierra Vista in August, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Sierra Vista.

Maximum UV Index Levels in Sierra Vista for August

The chart shows the monthly maximum UV Index (UVI) for Sierra Vista in August, 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 August, the maximum UV index in Sierra Vista typically reaches 12, which falls under the extreme exposure category.

Data source: Sierra Vista August 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 August Weather in Sierra Vista Compares to Other Months

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

This table compares monthly weather conditions in Sierra Vista, showing how August’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