Barometric Pressure in Simi Valley, United States 
1009.7 hPa
33.3 ℃
29%
4.81 m/s
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The average pressure in Simi Valley, California, United States today is , which is considered normal. Pressure is trending falling.
Weather prediction: Rain at frequent intervals
Rapid Pressure Changes
Rapid pressure changes detected in Simi Valley, often a sign of approaching weather shifts. See the forecast chart or get pressure alerts.
- Rapid Rise : ()
The daily total fluctuation in pressure in Simi Valley is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Simi Valley hour by hour across the next 6 hourly readings.
Weather patterns in Simi Valley bring changes in air pressure, which can rise or fall depending on the type of weather. A high-pressure system brings good weather, while a low-pressure system brings bad weather.
Simi Valley's elevation, 700 feet above sea level, and surrounding mountains influence air pressure. The mountains can block or redirect air masses, causing pressure changes.
In the winter, air pressure is usually high, bringing dry and clear weather. In the summer, air pressure is usually low, bringing hot and dry weather. In the spring and fall, air pressure is in between, bringing mild weather.
Simi Valley has a Mediterranean climate, known for dry summers and mild winters. This climate type means air pressure fluctuations are moderate, making the weather comfortable for people.