Barometric Pressure in Arcata, United States 
1010.6 hPa
13.6 ℃
69%
4.64 m/s
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The average pressure in Arcata, California, United States today is , which is considered normal. Pressure is trending rising.
Weather prediction: Fine, possible showers
Rapid Pressure Changes
Rapid pressure changes detected in Arcata, often a sign of approaching weather shifts. See the forecast chart or get pressure alerts.
- Rapid Fall : ()
- Rapid Fall : ()
- Rapid Rise : ()
The daily total fluctuation in pressure in Arcata is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Arcata hour by hour across the next 6 hourly readings.
Arcata's barometric pressure is influenced by its proximity to the Pacific Ocean. The pressure changes frequently due to the ocean's moderating effect. This results in a mix of high and low-pressure systems.
The city is situated in a valley near the ocean. This unique landscape creates a channel for marine air to move inland. The surrounding hills and mountains block or redirect winds.
These wind patterns disrupt the airflow, causing pressure changes. As a result, the barometric pressure in Arcata is often unstable. This instability leads to fluctuating weather conditions.