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Barometric Pressure in Portsmouth, New Hampshire, US


0000 hPa
00.00 inHg


00.0 ℃
0.00 ℉


00.0 m/s
00.0 mph


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The pressure in Portsmouth, United States United States is predicted to rise over the next few hours, with an average pressure of 1017.9 hPa today, which is considered normal.


Weather prediction: Expect fair, dry, cool weather and a strong breeze

The daily total fluctuation in pressure in Portsmouth is 7.6 hPa, with a low of 1012.4 hPa and a high of 1020 hPa. The daily average here is higher than in most cities around the world.



Portsmouth's average barometric pressure is 30.12 inches. This is slightly above the national average. The pressure is highest in November and lowest in April.

Barometric pressure

The city is situated near the Atlantic Ocean. The ocean's presence influences the pressure. It brings moisture and helps regulate temperatures.

The surrounding landscape is a mix of coastal plains and gentle hills. These features allow winds to flow freely. The winds contribute to the changes in pressure.

The Appalachian Mountains are located to the west. They have a minimal impact on Portsmouth's pressure. However, they do influence the regional weather patterns.


* The barometric pressure information for Portsmouth, New Hampshire, United States 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.