August Weather in Yucaipa, United States

Last updated: June 24, 2025

In August in Yucaipa, United States, the average temperature hovers around 25°C (78°F). Expect a comfortable range, with minimums dropping to 13°C (56°F) and maximums soaring up to 38°C (102°F). During this month, precipitation is relatively low, with about 10 mm (0.4 in) spread over only 2 days, and the average humidity remains a pleasant 42%.

August Temperature in Yucaipa

In August in Yucaipa, the average temperature is 25°C (78°F), with maximums reaching up to 38°C (102°F) and minimums dropping as low as 13°C (56°F). This makes Yucaipa an ideal destination for those who enjoy warm weather while still having the option for cooler evenings.

August Weather in Yucaipa: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Yucaipa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Yucaipa, August typically has an average temperature of 25°C (78°F), with highs reaching up to 38°C (102°F) and lows dropping to around 13°C (56°F).

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

August Precipitation in Yucaipa

In Yucaipa in August, the precipitation amount is 10 mm (0.4 in) over a period of 2 days.

August Precipitation Trends in Yucaipa

The chart displays monthly precipitation patterns in Yucaipa, 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 Yucaipa, August typically receives around 10 mm (0.4 inches) of precipitation spread over approximately 2 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 Yucaipa

In Yucaipa in August, humidity is 42%. With an average temperature of 25°C (78°F), this humidity feels like a comfortable embrace, ideal for exploring the sights and enjoying outdoor activities without the discomfort of excessive heat or stickiness.

August Average Humidity in Yucaipa

This chart illustrates the average monthly humidity levels in Yucaipa, 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 Yucaipa is approximately 42%, 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 Yucaipa

In Yucaipa 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 Yucaipa.

Maximum UV Index Levels in Yucaipa for August

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

Data source: Yucaipa 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 Yucaipa Compares to Other Months

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

This table compares monthly weather conditions in Yucaipa, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (49°F)	62 mm (2.4 inches)	72%	moderate
February Weather	9°C (49°F)	66 mm (2.6 inches)	77%	high
March Weather	11°C (52°F)	57 mm (2.3 inches)	67%	very high
April Weather	15°C (59°F)	26 mm (1.0 inches)	56%	very high
May Weather	17°C (62°F)	15 mm (0.6 inches)	46%	extreme
June Weather	22°C (72°F)	3 mm (0.1 inches)	48%	extreme
July Weather	25°C (78°F)	13 mm (0.5 inches)	46%	extreme
August Weather	25°C (78°F)	10 mm (0.4 inches)	42%	extreme
September Weather	23°C (73°F)	10 mm (0.4 inches)	52%	very high
October Weather	18°C (64°F)	11 mm (0.4 inches)	58%	very high
November Weather	14°C (57°F)	23 mm (0.9 inches)	66%	moderate
December Weather	9°C (49°F)	59 mm (2.3 inches)	74%	moderate