Barometric Pressure in Tumwater, United States 
988.9 hPa
8.6 ℃
89%
1.34 m/s
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The average pressure in Tumwater, Washington, United States today is , which is lower than normal. Pressure is trending falling.
Weather prediction: Stormy, possibly improving
The daily total fluctuation in pressure in Tumwater is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Tumwater hour by hour across the next 6 hourly readings.
Tumwater has varying air pressure due to its proximity to the ocean and surrounding hills. Air pressure changes often bring rain or clear skies.
The city's geography, near Puget Sound and the Olympic Mountains, affects air pressure. Moist air from the ocean rises, cools, and creates rain.
In winter, low air pressure brings rain and storms. Summer has high air pressure, resulting in clear skies and warm temperatures.
Tumwater has an oceanic climate with mild temperatures. The climate's moderate air pressure changes create a mix of sunny and rainy days.