June Weather in California, United States

Last updated: June 24, 2025

In June, the average temperature in California, United States is a pleasant 24°C (75°F), with a minimum of 14°C (57°F) and a maximum reaching 32°C (90°F). Expect around 98 mm (3.8 in) of precipitation spread over 11 days, contributing to an average humidity level of 79%. Whether you're soaking in the warm sun or enjoying a refreshing rain shower, this month offers a delightful blend of climate experiences.

June Temperature in California

In June in California, the average temperature is 24°C (75°F). The maximum can reach 32°C (90°F), while the minimum can be as low as 14°C (57°F). This mild weather makes California an ideal destination for travelers seeking a comfortable climate.

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

The chart illustrates June 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, June typically has an average temperature of 24°C (75°F), with highs reaching up to 32°C (90°F) and lows dropping to around 14°C (57°F).

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

June Precipitation in California

In California in June, the precipitation amount is 98 mm (3.8 in) over the course of 11 days.

June Precipitation Trends in California

The chart displays monthly precipitation patterns in California, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In California, June typically receives around 98 mm (3.8 inches) of precipitation spread over approximately 11 days.

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

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Millimeters (mm) Inches (in)

June Humidity in California

In California in June, humidity is 79%. With an average temperature of 24°C (75°F), this humidity feels like a warm, tropical embrace, making traveling quite sticky and requiring ample hydration and light clothing to keep comfortable while exploring.

June Average Humidity in California

This chart illustrates the average monthly humidity levels in California, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in California is approximately 79%, offering insight into how humid the weather typically is during this month.

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

June UV Index in California

In California in June, 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 June

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

Data source: California June 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 June 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 June’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 June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (39°F)	75 mm (3.0 inches)	84%	moderate
February Weather	5°C (42°F)	118 mm (4.7 inches)	83%	moderate
March Weather	8°C (47°F)	93 mm (3.7 inches)	83%	high
April Weather	14°C (57°F)	97 mm (3.8 inches)	81%	very high
May Weather	19°C (66°F)	119 mm (4.7 inches)	78%	very high
June Weather	24°C (75°F)	98 mm (3.8 inches)	79%	very high
July Weather	27°C (81°F)	132 mm (5.2 inches)	74%	very high
August Weather	26°C (79°F)	152 mm (6.0 inches)	72%	very high
September Weather	23°C (74°F)	110 mm (4.3 inches)	75%	very high
October Weather	18°C (65°F)	133 mm (5.2 inches)	81%	high
November Weather	10°C (51°F)	94 mm (3.7 inches)	85%	moderate
December Weather	6°C (44°F)	107 mm (4.2 inches)	84%	moderate