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 Seattle, United States is predicted to drop over the next few hours, with an average pressure of 1012.8 hPa today, which is considered normal.
Weather prediction: Expect wet, unsettled weather and a strong breeze
The daily total fluctuation in pressure in Seattle is 3.9 hPa, with a low of 1010.1 hPa and a high of 1014 hPa. The daily average here is lower than in most cities around the world.
The barometric pressure in Seattle is affected by its proximity to the Pacific Ocean and the surrounding mountains. This combination leads to frequent changes in pressure. Low-pressure systems from the Pacific dominate the winter weather, bringing cloudy and rainy conditions. High-pressure systems from the north and east bring fair weather during the summer.
Seattle is surrounded by the Olympic Mountains to the west and the Cascade Range to the east. The Puget Sound, a body of water, lies between the city and the Olympic Mountains. This unique landscape channels airflow and influences the barometric pressure. The mountains force air to rise, cool, and condense, resulting in rain.