Barometric Pressure in Jamestown, SH

The pressure in Jamestown, Saint Helena, Ascension and Tristan da Cunha is predicted to rapidly rise over the next few hours, with an average pressure of 1017 hPa today, which is considered normal.

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

The daily total fluctuation in pressure in Jamestown is 3.4 hPa, with a low of 1015 hPa and a high of 1018.4 hPa. The daily average here is lower than in most cities around the world.

Forecast

• Low Pressure
• Normal Range
• High Pressure

The barometric pressure in Jamestown, Saint Helena, Ascension and Tristan da Cunha tends to be generally stable throughout the year. It ranges between 1015 and 1025 millibars. The weather in Jamestown is influenced by the trade winds and the seasons are not extreme. Summers are warm and winters are mild.

Jamestown is located in a valley, surrounded by steep mountainous terrain. This landscape acts as a barrier to the wind and helps maintain stable atmospheric pressure. The high peaks create a windbreak effect, protecting the town from strong gusts. As a result, the barometric pressure in Jamestown remains relatively constant, making it a pleasant place to experience consistent weather patterns.

Disclaimer

* The barometric pressure information for Jamestown, Saint Helena, Ascension and Tristan da Cunha on this page is for educational purposes only. We are not responsible for its accuracy or reliability. This information is not medical advice. Consult a health professional for medical concerns and do not rely on this site for medical decisions.