Barometric Pressure in Port Townsend, United States 
994.6 hPa
10 ℃
79%
8.23 m/s
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The average pressure in Port Townsend, Washington, United States today is , which is lower than normal. Pressure is trending rising.
Weather prediction: Fine, becoming less settled
Rapid Pressure Changes
Rapid pressure changes detected in Port Townsend, often a sign of approaching weather shifts. See the forecast chart or get pressure alerts.
- Rapid Rise : ()
The daily total fluctuation in pressure in Port Townsend is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Port Townsend hour by hour across the next 6 hourly readings.
Port Townsend's weather is influenced by its location near the Olympic Mountains and the Puget Sound. This creates a "rain shadow" effect, making air pressure higher east of the Olympics.
The Sound's warm waters and the Pacific Ocean's moisture also impact air pressure, creating a mix of high and low pressure systems. This leads to frequent changes in weather.
In winter, low pressure systems from the Pacific bring rain and wind. High pressure systems from the east bring dry and cold air. Spring and fall have more stable air pressure, with a mix of sun and rain.
Summer has high pressure, leading to dry and sunny weather. Port Townsend has a mild oceanic climate, with air pressure changes driving its rainy and windy winters and mild summers.