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July Weather in California, United States

Last updated: June 24, 2025

In July, the average temperature in California, United States reaches a warm 26°C (80°F). However, be prepared for a temperature range where the minimum can drop to 16°C (61°F), while the maximum peaks at a sweltering 38°C (101°F). During this month, expect about 115 mm (4.5 in) of precipitation spread over 9 days, with an average humidity level of 81%, creating a seasonally lush and vibrant atmosphere.

July Temperature in California

In July in California, the average temperature is 26°C (80°F). The maximum can reach 38°C (101°F) and the minimum can be as low as 16°C (61°F). It's an ideal time for travelers to enjoy warm weather while being prepared for the occasional cooler evening.

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 26°C (80°F), with highs reaching up to 38°C (101°F) and lows dropping to around 16°C (61°F).
JanFebMarAprMayJunJulAugSepOctNovDec323547546676807672584539
Data source: Temperature data for California generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

July Precipitation in California

In California in July, the precipitation amount is 115 mm (4.5 in) over the course of 9 days, indicating a relatively wet period for the region.

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 115 mm (4.5 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec6860114124176113115106611075638
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in California

In California in July, humidity is 81%. With an average temperature of 26°C (80°F), this humidity feels like a warm, enveloping blanket that clings to the skin, making outdoor activities feel more strenuous and requiring frequent breaks to stay refreshed and hydrated.

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 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%78%75%77%82%83%81%78%72%72%84%86%
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 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 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 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101111109743
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.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)68 mm (2.7 inches)80%moderate
February Weather1°C (35°F)60 mm (2.4 inches)78%moderate
March Weather8°C (47°F)114 mm (4.5 inches)75%high
April Weather12°C (55°F)124 mm (4.9 inches)77%very high
May Weather19°C (67°F)175 mm (6.9 inches)82%very high
June Weather25°C (77°F)113 mm (4.4 inches)83%extreme
July Weather26°C (80°F)115 mm (4.5 inches)81%extreme
August Weather25°C (77°F)106 mm (4.2 inches)78%very high
September Weather22°C (73°F)61 mm (2.4 inches)72%very high
October Weather14°C (58°F)107 mm (4.2 inches)72%high
November Weather7°C (45°F)56 mm (2.2 inches)84%moderate
December Weather4°C (39°F)38 mm (1.5 inches)86%moderate

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