August Weather in Holtville, United States

Last updated: June 24, 2025

In August, the average temperature in Holtville, United States reaches a sweltering 36°C (98°F), with minimums dropping to 21°C (70°F) and peaks soaring up to a scorching 49°C (120°F). Expect minimal precipitation, with just 6 mm (0.3 in) falling over a single day, and enjoy a relatively dry atmosphere with an average humidity of 42%.

August Temperature in Holtville

In August in Holtville, the average temperature is 36°C (98°F). Maximums can reach 49°C (120°F), while minimums can drop to as low as 21°C (70°F). Travelers should be prepared for extreme heat and stay hydrated while exploring the area.

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

The chart illustrates August temperature patterns in Holtville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Holtville, August typically has an average temperature of 36°C (98°F), with highs reaching up to 49°C (120°F) and lows dropping to around 21°C (70°F).

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

August Precipitation in Holtville

In Holtville in August, the precipitation amount is 6 mm (0.3 in) over the course of 1 day.

August Precipitation Trends in Holtville

The chart displays monthly precipitation patterns in Holtville, 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 Holtville, August typically receives around 6 mm (0.3 inches) of precipitation spread over approximately 1 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 Holtville

In Holtville in August, humidity is 42%. With an average temperature of 36°C (98°F), this humidity feels like a sultry embrace, making travel feel like a walk through a warm, damp cloud.

August Average Humidity in Holtville

This chart illustrates the average monthly humidity levels in Holtville, 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 Holtville 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 Holtville

In Holtville 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 Holtville.

Maximum UV Index Levels in Holtville for August

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

Data source: Holtville 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 Holtville Compares to Other Months

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

This table compares monthly weather conditions in Holtville, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	15°C (59°F)	10 mm (0.4 inches)	72%	moderate
February Weather	16°C (62°F)	15 mm (0.6 inches)	77%	high
March Weather	20°C (68°F)	10 mm (0.4 inches)	67%	very high
April Weather	24°C (76°F)	4 mm (0.2 inches)	56%	very high
May Weather	27°C (82°F)	1 mm (0.1 inches)	46%	extreme
June Weather	33°C (91°F)	0 mm (0.0 inches)	48%	extreme
July Weather	36°C (98°F)	8 mm (0.3 inches)	46%	extreme
August Weather	36°C (98°F)	6 mm (0.3 inches)	42%	extreme
September Weather	32°C (90°F)	9 mm (0.4 inches)	52%	very high
October Weather	25°C (78°F)	3 mm (0.1 inches)	58%	high
November Weather	19°C (67°F)	4 mm (0.2 inches)	66%	moderate
December Weather	14°C (58°F)	10 mm (0.4 inches)	74%	moderate