Portsmouth, New Hampshire Weather
Portsmouth, New Hampshire — live current conditions, hourly and 7-day forecasts, NWS alerts, radar and satellite imagery, tide predictions, marine conditions and a solunar fishing forecast for Portsmouth, Rockingham County.
Tides, marine forecast and fishing conditions near Portsmouth. Tide source:
Full aviation weather for Portsmouth is published on the Portsmouth International Airport at Pease (KPSM) page, 5 km away. It carries the current METAR decoded into plain language — surface wind, visibility, cloud layers and ceiling, temperature and dewpoint, and altimeter setting — alongside the raw observation as transmitted. 6 airfields within reach of Portsmouth have their own pages, listed below.
The Terminal Aerodrome Forecast (TAF) is shown across its full validity period, with each change group broken out so you can see when conditions are expected to shift. Flight category is derived automatically — VFR, MVFR, IFR or LIFR — from reported ceiling and visibility, with runway details and field elevation alongside. Observations update roughly hourly and forecasts several times a day.
Other airports near Portsmouth: Hampton Airfield (K7B3) 14 km · Skyhaven Airport (KDAW) 27 km · Sanford Seacoast Regional Airport (KSFM) 36 km · Lawrence Municipal Airport (KLWM) 49 km · Biddeford Municipal Airport (KB19) 50 km
Conditions reported at KPSM describe the airfield itself. Weather 5 km away can differ, particularly in terrain or near the coast. For conditions at Portsmouth specifically, see the current conditions and forecast above.
About Portsmouth, New Hampshire
Portsmouth, a venerable New Hampshire seaport, commands a strategic position where the Piscataqua River meets the Atlantic, shaping its maritime history and economy. It lies 10.4 miles south-south-east of Dover, NH (from Dover, NH: bearing 147°T), and is situated 9.3 miles east-south-east of Durham. For centuries, its deep harbor has been a crucible for shipbuilding, trade, and naval presence, fostering a robust economy that once hummed with the industry of sailcloth and timber. The very air here carries the salty tang of the ocean, a constant reminder of its connection to global currents, while the resilient granite foundations of its earliest structures speak to a history of enduring craftsmanship. This coastal setting has always dictated Portsmouth's fortunes, from its days as a vital colonial hub to its modern embrace of tourism and its continued role as a significant naval base. The cultural character of Portsmouth is a rich blend of seafaring grit and sophisticated charm, where the echoes of its past mingle with a vibrant present. Visitors are drawn to historic Strawbery Banke Museum, a living history site that preserves centuries of domestic life, and the imposing presence of Fort Constitution, guarding the harbor's entrance. The University of New Hampshire, a short distance away, infuses the region with youthful energy and intellectual pursuits, while the city itself boasts a lively arts scene and a distinctive culinary landscape. Though no major professional sports teams call Portsmouth home, the spirit of competition can be felt in local leagues and during the annual Market Square Day, a cherished summer festival that draws crowds to celebrate the unique pulse of this New Hampshire gem.
Live animated radar for Portsmouth and surroundings — RainViewer.
NOAA GOES-16 GEOCOLOR — live animated loop updated every 10 minutes. Shows cloud cover, storm systems and weather patterns across the continental US.
Source: NOAA/NESDIS GOES-East · Public domain · Auto-updates on page reload
| Location | Portsmouth, Rockingham County, New Hampshire |
| Coordinates | 43.071755°N, 70.762553°W |
| Timezone | Eastern Time (America/New_York) |
| ZIP Code(s) | 03801, 03802, 03803, 03804 |
| Area Code | 603 |
| Page generated | September 2026 |
| Weather data | Open-Meteo (open-source), NOAA National Weather Service |
About This Portsmouth, New Hampshire Weather Page
This page provides live weather conditions and forecasts for Portsmouth, New Hampshire, including current conditions, a 24-hour hourly forecast, 7-day outlook, NWS extended text forecast, precipitation radar and NOAA GOES-16 satellite imagery. Aviation weather — live METAR observations and TAF forecasts — is published separately on the pages for the nearest reporting airports, linked from the aviation section above. Additional sections may include tide predictions, wave height, wave direction and sea-surface temperature, a barometric pressure trend, and a solunar-based fishing forecast with a fishing-conditions rating for coastal localities, and soil temperature, crop weather and live USGS river gauge data for agricultural areas near a monitored waterway. All data updates automatically on every page visit.
Location data for Portsmouth includes coordinates 43.071755°N, 70.762553°W, situated in Rockingham County. ZIP code 03801, 03802, 03803, 03804. Telephone area code: 603. Timezone: Eastern Time (America/New_York).
Weather data is sourced from the NOAA National Weather Service (NWS) and the open-source Open-Meteo API. River and stream data is sourced from the USGS National Water Information System. Tide predictions are sourced from NOAA CO-OPS; marine and solunar data are modeled from Open-Meteo and public sunrise/moon calculations and should be treated as a general guide alongside on-the-water conditions. Radar is provided by RainViewer. Satellite imagery is sourced from NOAA/NESDIS GOES-East and is public domain.
