August Weather in Fountain Hills, United States

Last updated: June 24, 2025

In Fountain Hills, United States, the average temperature in August hovers around 34°C (93°F). However, temperatures can vary significantly, with a minimum of 22°C (71°F) and a maximum soaring to 46°C (115°F). During this month, expect about 33 mm (1.3 in) of precipitation over approximately 4 days, while the average humidity rests at 48%.

August Temperature in Fountain Hills

In August in Fountain Hills, the average temperature is 34°C (93°F). The maximum can reach 46°C (115°F), and the minimum can be as low as 22°C (71°F). Travelers should be prepared for extreme heat during this time and stay hydrated while enjoying their adventures.

August Weather in Fountain Hills: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Fountain Hills, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fountain Hills, August typically has an average temperature of 34°C (93°F), with highs reaching up to 46°C (115°F) and lows dropping to around 22°C (71°F).

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

August Precipitation in Fountain Hills

In Fountain Hills in August, the precipitation amount is 33 mm (1.3 in) over a span of 4 days.

August Precipitation Trends in Fountain Hills

The chart displays monthly precipitation patterns in Fountain Hills, 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 Fountain Hills, August typically receives around 33 mm (1.3 inches) of precipitation spread over approximately 4 days.

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

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Millimeters (mm) Inches (in)

August Humidity in Fountain Hills

In Fountain Hills in August, humidity is 48%. With an average temperature of 34°C (93°F), this humidity feels like a warm blanket wrapped around you, making traveling feel a bit heavy yet surprisingly refreshing, as you experience a sultry embrace that urges you to seek shade and sip on cold drinks.

August Average Humidity in Fountain Hills

This chart illustrates the average monthly humidity levels in Fountain Hills, 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 Fountain Hills is approximately 48%, 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 Fountain Hills

In Fountain Hills in August, 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 Fountain Hills.

Maximum UV Index Levels in Fountain Hills for August

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

Data source: Fountain Hills 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 Fountain Hills Compares to Other Months

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

This table compares monthly weather conditions in Fountain Hills, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	12°C (53°F)	33 mm (1.3 inches)	76%	moderate
February Weather	13°C (56°F)	44 mm (1.7 inches)	79%	high
March Weather	17°C (63°F)	31 mm (1.2 inches)	67%	very high
April Weather	23°C (74°F)	2 mm (0.1 inches)	55%	very high
May Weather	27°C (81°F)	2 mm (0.1 inches)	40%	extreme
June Weather	33°C (92°F)	2 mm (0.1 inches)	33%	extreme
July Weather	34°C (94°F)	38 mm (1.5 inches)	34%	extreme
August Weather	34°C (93°F)	33 mm (1.3 inches)	48%	extreme
September Weather	31°C (88°F)	28 mm (1.1 inches)	64%	very high
October Weather	24°C (75°F)	25 mm (1.0 inches)	67%	very high
November Weather	18°C (65°F)	23 mm (0.9 inches)	77%	moderate
December Weather	12°C (54°F)	27 mm (1.0 inches)	82%	moderate