Barometric Pressure in Vacaville, United States 
1012.4 hPa
21.7 ℃
34%
1.17 m/s
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The average pressure in Vacaville, California, United States today is , which is considered normal. Pressure is trending steady.
Weather prediction: Fairly fine, showers likely
The daily total fluctuation in pressure in Vacaville is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Vacaville hour by hour across the next 6 hourly readings.
The barometric pressure in Vacaville, California, is affected by its inland location in the northern part of the state. Atmospheric pressure systems from the Pacific Ocean influence the city's weather. Changes in pressure can bring varying weather patterns to the area.
Vacaville is situated in a valley surrounded by the Vaca Mountains to the east and the Coastal Range to the west. This unique landscape traps and channels air masses moving into the region. The valley's shape and surrounding mountains influence the movement of air, affecting the atmospheric pressure.
As a result, Vacaville experiences a Mediterranean climate with hot, dry summers and mild, wet winters. The city's weather is characterized by a significant difference between summer and winter temperatures. This contrast contributes to the varying barometric pressure throughout the year.