August Weather in Ukiah, United States

Last updated: June 24, 2025

In August, the average temperature in Ukiah, United States is a pleasant 22°C (72°F). You'll experience a comfortable range, with minimums dipping to 11°C (52°F) and maximums soaring to 38°C (100°F). Precipitation is minimal, with only 1 mm (0.1 in) expected over 0 days, and the average humidity rests at a moderate 66%. Enjoy the perfect climate!

August Temperature in Ukiah

In August in Ukiah, the average temperature is 22°C (72°F). The maximum can reach 38°C (100°F), and the minimum can be as low as 11°C (52°F). This makes it an ideal time for travelers to enjoy a pleasant climate while exploring the attractions.

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

The chart illustrates August temperature patterns in Ukiah, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ukiah, August typically has an average temperature of 22°C (72°F), with highs reaching up to 38°C (100°F) and lows dropping to around 11°C (52°F).

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

August Precipitation in Ukiah

In Ukiah in August, the precipitation amount is 1 mm (0.1 in) during 0 days, indicating a very dry period.

August Precipitation Trends in Ukiah

The chart displays monthly precipitation patterns in Ukiah, 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 Ukiah, August typically receives around 1 mm (0.1 inches) of precipitation spread over approximately 0 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 Ukiah

In Ukiah in August, humidity is 66%. With an average temperature of 22°C (72°F), this humidity feels like walking through a warm, enveloping blanket, making it essential to stay hydrated while exploring the sights and taking regular breaks in shaded areas.

August Average Humidity in Ukiah

This chart illustrates the average monthly humidity levels in Ukiah, 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 Ukiah is approximately 66%, 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 Ukiah

In Ukiah in August, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Ukiah.

Maximum UV Index Levels in Ukiah for August

The chart shows the monthly maximum UV Index (UVI) for Ukiah 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 Ukiah typically reaches 10, which falls under the very high exposure category.

Data source: Ukiah 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 Ukiah Compares to Other Months

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

This table compares monthly weather conditions in Ukiah, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (45°F)	172 mm (6.8 inches)	86%	moderate
February Weather	8°C (46°F)	170 mm (6.7 inches)	84%	moderate
March Weather	9°C (48°F)	135 mm (5.3 inches)	83%	high
April Weather	12°C (53°F)	79 mm (3.1 inches)	80%	very high
May Weather	15°C (58°F)	54 mm (2.1 inches)	80%	extreme
June Weather	19°C (67°F)	3 mm (0.1 inches)	76%	extreme
July Weather	22°C (72°F)	1 mm (0.0 inches)	70%	extreme
August Weather	22°C (72°F)	1 mm (0.1 inches)	66%	very high
September Weather	19°C (67°F)	7 mm (0.3 inches)	68%	very high
October Weather	15°C (59°F)	54 mm (2.1 inches)	72%	high
November Weather	10°C (50°F)	92 mm (3.6 inches)	84%	moderate
December Weather	7°C (45°F)	115 mm (4.5 inches)	84%	moderate