Portsmouth Harbor
Conditions are Caution now and remain evaluated through 1:06 AM tomorrow.
Right now
updated 9:06 PM
69°F · sets 7:22 PM
gusts 10 kt
Tomorrow · High tide 1:38 AM
Water level not reported
Latest observations plus the current-hour NWS sky forecast. The call itself runs on the hourly forecast; nearby NDBC 44030 observations do not replace it.
How the day develops
Available forecast · 4 kt peak wind · 2 ft peak seas · Rolling swell
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Right now. Caution. Seas are the limiting factor. 2 feet every 7 seconds, 0.5 feet under your 2.5 foot limit. cloudy, wind west 4 knots, comfortably under the limit, tide rising.
Nearby harbors
Nearby boating conditions
Local source coverage
Marine forecast and boating conditions for Portsmouth Harbor
A deep historic harbor at the Piscataqua River entrance, shaped by strong tidal currents and commercial traffic.
This harbor in New Hampshire uses Western Maine Shelf (44030) for marine observations, Wells (8418911) for tide predictions, and Portsmouth Intl (KPSM) for nearby aviation weather context.
Boat or Nope continuously checks the source bindings behind this planning page.