July Weather in California, Mexico

Last updated: August 27, 2025

In California, Mexico, the average temperature in July hovers around 20°C (68°F), with a minimum of 12°C (53°F) and a maximum reaching up to 31°C (88°F). This month also sees about 137 mm (5.4 in) of precipitation over 16 days, contributing to an average humidity of 67%. Enjoy the balance of warmth and moisture as you explore this vibrant locale!

July Temperature in California

In July in California, the average temperature is 20°C (68°F). The maximum can reach 31°C (88°F), and the minimum can be as low as 12°C (53°F). This pleasant climate makes California an ideal destination for travelers seeking a comfortable escape.

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 20°C (68°F), with highs reaching up to 31°C (88°F) and lows dropping to around 12°C (53°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 137 mm (5.4 in) over the course of 16 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 137 mm (5.4 inches) of precipitation spread over approximately 16 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 67%. With an average temperature of 20°C (68°F), this humidity feels like a warm embrace, making travel comfortable yet slightly sticky, as the air clings to your skin and invites you to enjoy the sights at a leisurely pace.

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 67%, 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 is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in California, you can check here.

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 14, which falls under the extreme 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	13°C (55°F)	18 mm (0.7 inches)	75%	very high
February Weather	15°C (59°F)	11 mm (0.4 inches)	69%	extreme
March Weather	18°C (65°F)	10 mm (0.4 inches)	65%	extreme
April Weather	20°C (68°F)	6 mm (0.2 inches)	64%	extreme
May Weather	22°C (71°F)	30 mm (1.2 inches)	75%	extreme
June Weather	21°C (70°F)	116 mm (4.6 inches)	78%	extreme
July Weather	20°C (68°F)	137 mm (5.4 inches)	67%	extreme
August Weather	20°C (68°F)	79 mm (3.1 inches)	64%	extreme
September Weather	19°C (66°F)	135 mm (5.3 inches)	81%	extreme
October Weather	18°C (64°F)	48 mm (1.9 inches)	85%	extreme
November Weather	15°C (60°F)	14 mm (0.6 inches)	87%	very high
December Weather	13°C (55°F)	12 mm (0.5 inches)	87%	very high