Predictions: NOAA CO-OPS station 8452660 — heights relative to MLLW.

Harmonic prediction from the official tide authority. Very high accuracy under normal conditions; storm surge may shift actual water level. Not for navigation.

Predictions: NOAA CO-OPS station 8452660 — heights relative to MLLW. · Not for navigation.

The angler tradition that rates each day for fish-bite likelihood using moon transits and rise/set. One to five stars, not a scientific forecast.

• Mon
  ★★★★★
• Tue
  ★★★★★
• Wed
  ★★★★★
• Thu
  ★★★★★
• Fri
  ★★★★★
• Sat
  ★★★★★
• Sun
  ★★★★★

Next spring tide on Thu 30 Apr (range 1.2m / 4.1ft). Next neap on Wed 29 Apr.

Spring tides cluster around new and full moons (biggest swings). Neap tides land on quarter moons (smallest swings). See the spring tide and neap tide glossary entries for the why.

Newport sits at the south-eastern corner of Aquidneck Island in Rhode Island, where the East and West Passages of Narragansett Bay open south to Block Island Sound and the open Atlantic, with Brenton Reef at the entrance marking the offshore approach the working pilots watch on every transit. The city is the historical sailing capital of America — the New York Yacht Club moved its summer station here in 1881, the America's Cup defended out of the Newport Yacht Club from 1930 to 1983 across twenty-three consecutive matches, and the modern Newport-Bermuda Race fleet stages from here every other June for the 1,170-kilometre run south to St David's Lighthouse. The tide here is a moderate semidiurnal signal — mean range at the Newport reference gauge is about 1.1 metres, with two highs and two lows of comparable size about twelve and a half hours apart. Spring tides push close to 1.4 metres and neaps drop near 0.8. Inside the bay the range grows slightly toward Providence at the head, and the basin geometry concentrates currents through the narrow stretches between Conanicut Island (Jamestown) and Aquidneck — slack water through the Pell Bridge channel runs about an hour after the high or low at the Newport gauge. The cliff walk runs three and a half miles from Easton's Beach south past the Breakers (the Vanderbilt summer cottage that the Preservation Society maintains as a museum) to Bailey's Beach, with the rocky intertidal at the foot of the cliff opening up on the lowest spring lows. Beavertail State Park on the Conanicut tip frames the bay entrance and the lighthouse there has marked the approach since 1749. The working fishing fleet at the Galilee port on the South County coast across the bay, the Block Island ferry crossing from Galilee or Point Judith, the swimming and surf at Easton's Beach (First Beach) and Sachuest Beach (Second Beach) on the seaward side of Aquidneck, and the rocky shore at Sakonnet Point on the Tiverton side all read the table for different windows. NOAA CO-OPS station 8452660 in Newport Harbor provides the harmonic predictions on this page; nor'easter and post-tropical surge events in autumn and winter can lift water levels well above predicted, and the Boston-area NWS office is the authoritative real-time source during those events.