0000 hPa
00.00 inHg
00.0 ℃
0.00 ℉
00.0 m/s
00.0 mph
00.0%
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The pressure in Napa, United States is predicted to rise over the next few hours, with an average pressure of 1017.3 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 3.9 hPa, with a low of 1014.7 hPa and a high of 1018.6 hPa. The daily average here is higher than in most cities around the world.
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.