Barometric Pressure in Foster City, United States 
1015.7 hPa
10.8 ℃
81%
1.21 m/s
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The average pressure in Foster City, California, United States today is , which is considered normal. Pressure is trending rising.
Weather prediction: Fairly fine, improving
The daily total fluctuation in pressure in Foster City is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Foster City hour by hour across the next 6 hourly readings.
Foster City has mild weather year-round. Air pressure in Foster City usually stays steady, around 1013 millibars. The city's coastal location near the Pacific Ocean helps keep air pressure stable.
Foster City's geography, with the ocean to the west and San Francisco Bay to the east, keeps air pressure steady. The nearby mountains block extreme weather patterns.
In summer, high pressure brings warm, dry air, with average highs around 67°F. In winter, low pressure can bring cool, wet air, with average highs around 57°F.
Foster City has a Mediterranean climate, with mild, wet winters and cool, dry summers. This climate type means steady air pressure, with little extreme weather.