June Weather in Vacaville, United States

Last updated: June 24, 2025

In June, the average temperature in Vacaville, United States is a pleasant 22°C (71°F). Expect a temperature range with a minimum of 10°C (51°F) and a scorching maximum of 41°C (106°F). Fortunately, the area experiences minimal precipitation, with just 1 mm (0.1 in) over the course of 0 days. With an average humidity of 64%, it's the perfect time to enjoy the mild weather!

June Temperature in Vacaville

In June in Vacaville, the average temperature is 22°C (71°F), with maximums reaching up to 41°C (106°F) and minimums dipping as low as 10°C (51°F). This variation in temperature makes it essential to pack accordingly for your travels.

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

The chart illustrates June temperature patterns in Vacaville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Vacaville, June typically has an average temperature of 22°C (71°F), with highs reaching up to 41°C (106°F) and lows dropping to around 10°C (51°F).

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

June Precipitation in Vacaville

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

June Precipitation Trends in Vacaville

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

In Vacaville in June humidity is 64%. With an average temperature of 22°C (71°F), this humidity feels like a warm, enveloping blanket, making it a comfortable time for exploring the local sights, although staying hydrated and taking breaks in the shade is advisable for a pleasant travel experience.

June Average Humidity in Vacaville

This chart illustrates the average monthly humidity levels in Vacaville, 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 Vacaville is approximately 64%, 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 Vacaville

In Vacaville in June, 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 Vacaville.

Maximum UV Index Levels in Vacaville for June

The chart shows the monthly maximum UV Index (UVI) for Vacaville 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 Vacaville typically reaches 11, which falls under the extreme exposure category.

Data source: Vacaville 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 Vacaville Compares to Other Months

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

This table compares monthly weather conditions in Vacaville, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	10°C (50°F)	119 mm (4.7 inches)	84%	moderate
February Weather	12°C (53°F)	102 mm (4.0 inches)	84%	moderate
March Weather	13°C (56°F)	77 mm (3.0 inches)	83%	high
April Weather	16°C (61°F)	32 mm (1.3 inches)	81%	very high
May Weather	19°C (66°F)	17 mm (0.7 inches)	74%	very high
June Weather	22°C (71°F)	1 mm (0.1 inches)	64%	extreme
July Weather	22°C (71°F)	0 mm (0.0 inches)	44%	extreme
August Weather	22°C (72°F)	0 mm (0.0 inches)	36%	very high
September Weather	21°C (71°F)	1 mm (0.0 inches)	44%	very high
October Weather	18°C (65°F)	26 mm (1.0 inches)	65%	high
November Weather	13°C (56°F)	38 mm (1.5 inches)	84%	moderate
December Weather	10°C (50°F)	85 mm (3.3 inches)	83%	moderate