Barometric Pressure in Key West, Florida, US

The pressure in Key West, United States is predicted to slowly rise over the next few hours, with an average pressure of 1013 hPa today, which is considered normal.

Weather prediction: Expect more fair, dry, cool weather

The daily total fluctuation in pressure in Key West is 5.1 hPa, with a low of 1010.5 hPa and a high of 1015.6 hPa. The daily average here is higher than in most cities around the world.

Forecast

The barometric pressure in Key West, Florida averages around 30.05 inches. It fluctuates slightly throughout the year. In winter, it tends to be higher, around 30.10-30.15 inches. In summer, it drops to around 30.00-30.05 inches.

Key West is a small island at the southernmost tip of Florida. It is surrounded by the Atlantic Ocean and the Gulf of Mexico. The island's flat terrain allows winds to flow freely. This leads to a relatively stable atmospheric pressure. The open waters surrounding the city also moderate temperature and humidity.

The proximity to the equator means the sun's rays strike the island directly. This leads to a high amount of solar radiation. The radiation heats the air, causing it to expand and rise. This creates a low-pressure system. The surrounding ocean waters cool the air, counterbalancing the effect.

The result is a relatively stable atmospheric pressure in Key West. The pressure rarely drops below 29.80 inches or rises above 30.20 inches. This stability contributes to the city's pleasant subtropical climate.