The pressure in Portsmouth, United Kingdom is predicted to slowly drop over the next few hours, with an average pressure of 1009.1 hPa today, which is considered normal.
Weather prediction: Expect more wet and unsettled conditions
The daily total fluctuation in pressure in Portsmouth is 21.6 hPa, with a low of 1000.5 hPa and a high of 1022.1 hPa. The daily average here is lower than in most cities around the world.
The barometric pressure in Portsmouth, United Kingdom, varies throughout the year. During the winter months, it tends to be higher, indicating colder and more stable weather. In the summer, the barometric pressure is generally lower, suggesting warmer and potentially more unsettled conditions.
Portsmouth's location near the coast and its relatively flat landscape can influence the atmospheric pressure. The city's position on the southern coast of England means it is exposed to the changing weather patterns of the Atlantic Ocean. The flat terrain allows for little obstruction to the flow of air, resulting in a greater influence of the surrounding atmospheric conditions on Portsmouth's weather.