Barometric Pressure in Jamestown, Saint Helena, Ascension and Tristan da Cunha 
0000 hPa
00.0 ℃
00.0 m/s
00.0%
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The pressure in Jamestown, Saint Helena, Ascension and Tristan da Cunha is predicted to drop over the next few hours, with an average pressure of 986.2 hPa today, which is lower than normal.
Weather prediction: Expect wet, unsettled weather and a strong breeze
The daily total fluctuation in pressure in Jamestown is 3.1 hPa, with a low of 984.5 hPa and a high of 987.6 hPa.
Forecast
Hourly Pressure Trends
Track the barometric pressure in Jamestown hour by hour and stay informed about how it will change over the next 6 hours.
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.