Barometric Pressure in St. John's, Newfoundland and Labrador, CA

The pressure in St. John's, Canada is predicted to rapidly rise over the next few hours, with an average pressure of 976 hPa today, which is lower than normal.

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

The daily total fluctuation in pressure in St. John's is 3.3 hPa, with a low of 974.4 hPa and a high of 977.7 hPa. The daily average here is lower than in most cities around the world.

Forecast

St. John's weather is often stormy and windy due to its location near the Atlantic Ocean where cold Arctic air meets warm air from the Gulf Stream. This clash of air masses makes air pressure constantly change.

St. John's is surrounded by water on three sides, which affects air pressure, making it more unstable and prone to sudden changes. The city's unique geography, with hills and valleys, also impacts air pressure, creating microclimates.

In winter, cold air from the Arctic dominates, bringing low pressure and strong winds. In summer, warm air from the Gulf Stream takes over, bringing high pressure and calmer weather.

St. John's has a marine climate, which means air pressure is often influenced by the ocean's warmth. This leads to mild winters and cool summers, but also makes the weather quite unpredictable.