Frankfort Flats at Marsh River, Penobscot River

Fri 21 Aug 2026

0.5 kn0.7 kn0.5 kn0.5 kn0.8 kn05:3812:2017:56Now
Tidal current at Frankfort Flats at Marsh River, Penobscot River, computed from harmonic constituents. Maximum ebb of 0.7 knots on Fri 21 Aug 2026 at 10:22.

Slackwater predicts tides and currents offline, on your phone — tides worldwide, currents across the US and Canada.

Get the beta on TestFlightSlackwater