Barometric Pressure in San Marcos, California, US

The pressure in San Marcos, United States is predicted to drop over the next few hours, with an average pressure of 994.9 hPa today, which is lower than normal.

Weather prediction:

The daily total fluctuation in pressure in San Marcos is 3.7 hPa, with a low of 993.3 hPa and a high of 997 hPa. The daily average here is higher than in most cities around the world.

Forecast

The barometric pressure in San Marcos, California fluctuates throughout the day. It is influenced by the movement of high and low-pressure systems. Weather fronts can bring changes in pressure.

San Marcos is situated in a valley surrounded by hills. The landscape affects the atmospheric pressure. The hills can block or redirect air masses. This can lead to changes in pressure.

The city's proximity to the Pacific Ocean also plays a role. Moist air from the ocean influences the pressure. The air cools as it moves inland. This cooling can cause the pressure to drop.