Barometric Pressure in Napa, United States 
0000 hPa
00.0 ℃
00.0 m/s
00.0%
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The pressure in Napa, California, United States is predicted to rise over the next few hours, with an average pressure of 1011.9 hPa today, which is considered normal.
Weather prediction: Expect fair, dry, cool weather and a strong breeze
The daily total fluctuation in pressure in Napa is 3.5 hPa, with a low of 1010.3 hPa and a high of 1013.8 hPa.
Forecast
Hourly Pressure Trends
Track the barometric pressure in Napa hour by hour and stay informed about how it will change over the next 6 hours.
The barometric pressure in Napa, California varies throughout the year. It changes depending on the weather systems that move into the region. High-pressure systems bring fair weather. Low-pressure systems bring rain and storms.
Napa is surrounded by hills and mountains to the east and west. The Pacific Ocean lies to the west. The combination of land and sea influences the atmosphere. The hills and mountains block or redirect air masses. The Pacific Ocean moderates temperatures. The unique landscape around Napa contributes to the fluctuating barometric pressure.