July Weather in California, United States

Last updated: June 24, 2025

In July, the average temperature in California, United States hovers around 24°C (75°F). Expect cool lows of 13°C (56°F) and occasional highs reaching 34°C (94°F). This month brings about 153 mm (6.0 in) of rain over 15 days, contributing to a notable average humidity of 82%.

July Temperature in California

In July in California, the average temperature is 24°C (75°F). Maximums can reach 34°C (94°F), and minimums can be as low as 13°C (56°F). This makes it an ideal time for travelers to enjoy a pleasant mix of warm and cool weather while exploring the area.

July Weather in California: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in California, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In California, July typically has an average temperature of 24°C (75°F), with highs reaching up to 34°C (94°F) and lows dropping to around 13°C (56°F).

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

July Precipitation in California

In California in July, the precipitation amount is 153 mm (6.0 in) over the course of 15 days.

July Precipitation Trends in California

The chart displays monthly precipitation patterns in California, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In California, July typically receives around 153 mm (6.0 inches) of precipitation spread over approximately 15 days.

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

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Millimeters (mm) Inches (in)

July Humidity in California

In California in July, humidity is 82%. With an average temperature of 24°C (75°F), this humidity feels like a warm embrace, making travel feel sticky and heavy on the skin, often requiring more frequent breaks and hydration.

July Average Humidity in California

This chart illustrates the average monthly humidity levels in California, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in California is approximately 82%, offering insight into how humid the weather typically is during this month.

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

July UV Index in California

In California in July, 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 California.

Maximum UV Index Levels in California for July

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

Data source: California July 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 July Weather in California Compares to Other Months

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

This table compares monthly weather conditions in California, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	0°C (33°F)	87 mm (3.4 inches)	88%	moderate
February Weather	2°C (37°F)	124 mm (4.9 inches)	88%	moderate
March Weather	6°C (43°F)	117 mm (4.6 inches)	88%	high
April Weather	11°C (53°F)	129 mm (5.1 inches)	86%	very high
May Weather	17°C (63°F)	149 mm (5.9 inches)	82%	very high
June Weather	21°C (70°F)	172 mm (6.8 inches)	84%	very high
July Weather	24°C (75°F)	153 mm (6.0 inches)	82%	very high
August Weather	23°C (73°F)	110 mm (4.3 inches)	73%	very high
September Weather	20°C (68°F)	125 mm (4.9 inches)	73%	very high
October Weather	14°C (58°F)	121 mm (4.8 inches)	81%	high
November Weather	6°C (43°F)	86 mm (3.4 inches)	89%	moderate
December Weather	3°C (38°F)	116 mm (4.6 inches)	86%	moderate