Weather Forecast and Radar for Portsmouth, New Hampshire

Weather in Portsmouth, NH

Portsmouth, New Hampshire, United States has a humid continental climate. Summers are typically hot and humid with average temperatures ranging from the mid-70s F (23-25 C) to the mid-80s F (27-30 C). Winters are cold and snowy with average temperatures ranging from the mid-20s F (-4 to -2 C) to the low-30s F (0 to 1 C). Spring and autumn are usually mild with temperatures ranging from the mid-40s F (7 to 9 C) to the mid-60s F (18-20 C).

The area receives an average of 43 inches (110 cm) of precipitation annually, with the majority of it occurring from April through October. The region is also prone to snowfall, with average annual snowfall ranging from 24 to 36 inches (61 to 91 cm). Summers in the area tend to be mild and humid with occasional thunderstorms and bouts of extreme heat. The area is also susceptible to hurricanes and nor'easters, which can bring heavy rains and high winds.

Fast Facts About Portsmouth, NH

As of 2020, the city population is 97455.

Major Cities Nearby Portsmouth, NH

This map shows the current & 7-day weather forecast, weather alerts, and weather radar for Portsmouth, New Hampshire.