Barometric Pressure in Portsmouth, England, GB

The pressure in Portsmouth, United Kingdom is predicted to rapidly rise over the next few hours, with an average pressure of 1018.5 hPa today, which is considered normal.

Weather prediction: Expect shortly fair weather and gale or storm winds

The daily total fluctuation in pressure in Portsmouth is 5.6 hPa, with a low of 1016.3 hPa and a high of 1021.9 hPa. The daily average here is higher than in most cities around the world.

Forecast

The barometric pressure in Portsmouth is typically between 1013 and 1023 millibars. This is slightly above the national average. The pressure is often highest in the morning. It tends to drop during the day.

Portsmouth is a coastal city surrounded by the Solent Strait to the east and the English Channel to the south. The city is bordered by the South Downs hills to the north. The Solent Strait is a narrow body of water. It separates the Isle of Wight from the mainland.

The surrounding landscape affects the atmospheric pressure. The Solent Strait's narrowness creates a channeling effect on winds. This can cause pressure changes. The South Downs hills also influence local wind patterns. They can block or redirect winds, leading to pressure fluctuations.