Barometric Pressure in Tustin, United States 
1013.2 hPa
19.2 ℃
69%
1.75 m/s
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The average pressure in Tustin, California, United States today is , which is considered normal. Pressure is trending falling.
Weather prediction: Rain at frequent intervals
The daily total fluctuation in pressure in Tustin is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Tustin hour by hour across the next 6 hourly readings.
The weather in Tustin affects the barometric pressure, which changes when air masses move into the area. Changes in pressure bring different types of weather.
Tustin's elevation is low, near sea level, and its landscape is flat. This means that air can move in easily, causing pressure to change frequently.
In the summer, pressure is usually high, bringing clear skies and heat. In the winter, pressure is lower, resulting in cooler temperatures and more rain.
Tustin has a Mediterranean climate, which means there are dry summers and mild, wet winters. This climate type leads to big changes in barometric pressure throughout the year.