March Weather in Vacaville, United States

Last updated: June 24, 2025

In March, the average temperature in Vacaville, United States is a mild 13°C (56°F), with possibilities ranging from a chilly 1°C (34°F) to a warm 31°C (88°F). Expect about 77 mm (3.0 in) of precipitation over 9 days, contributing to an average humidity of 83%.

March Temperature in Vacaville

In March in Vacaville, the average temperature is 13°C (56°F). Maximums can reach 31°C (88°F) and minimums can be as low as 1°C (34°F). This makes it an ideal time for travelers to experience a range of weather conditions, so be sure to pack accordingly!

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

The chart illustrates March 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, March typically has an average temperature of 13°C (56°F), with highs reaching up to 31°C (88°F) and lows dropping to around 1°C (34°F).

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

March Precipitation in Vacaville

In Vacaville in March, the precipitation amount is 77 mm (3.0 in) over the course of 9 days.

March Precipitation Trends in Vacaville

The chart displays monthly precipitation patterns in Vacaville, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Vacaville, March typically receives around 77 mm (3.0 inches) of precipitation spread over approximately 9 days.

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

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Millimeters (mm) Inches (in)

March Humidity in Vacaville

In Vacaville in March humidity is 83%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket wrapping around you, making travel a bit uncomfortable as the air feels heavy and the moisture clings to your skin.

March Average Humidity in Vacaville

This chart illustrates the average monthly humidity levels in Vacaville, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Vacaville is approximately 83%, offering insight into how humid the weather typically is during this month.

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

March UV Index in Vacaville

In Vacaville in March, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Vacaville.

Maximum UV Index Levels in Vacaville for March

The chart shows the monthly maximum UV Index (UVI) for Vacaville in March, 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 March, the maximum UV index in Vacaville typically reaches 7, which falls under the high exposure category.

Data source: Vacaville March 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 March 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 March’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 March’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