New England
OCEANOGRAPHIC INSTITUTION
Massachusetts · NOAA station 8447930 · Tide predictions
41.5236, -70.6711
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48-hour outlook
Drag across the curve to inspect any time. Weather icons show the forecast at each high tide.
Drawn from the high/low predictions — NOAA publishes high/low only for this station.
The next seven days
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H = high tide · L = low tide · highs & lows in local time
On the water nearby
Nantucket Sound buoy · 20 mi E · Station 44020
Wind & wave reports →
Nearby tide stations
- Little Harbor · 0.4 mi SE
- Uncatena Island (south side) · 1.9 mi W
- Falmouth Heights · 4.3 mi E
- Chappaquoit Point, West Falmouth Harbor · 5.7 mi N
- VINEYARD HAVEN, VINEYARD HVN HBR · 5.8 mi SE
Plan ahead
2027 tide extremes for this station
Highest predicted high tide: 3.0 ft — Sun Jul 4 · 9:24 PM
Lowest predicted low tide: -0.6 ft — Sat Jan 23 · 4:01 PM
Biggest single-day swing: 3.3 ft on Fri Jan 22
Best daytime minus tides of 2027
| Date | Low tide | Height |
|---|---|---|
| Sat Jan 23 | 4:01 PM | -0.6 ft |
| Fri Jan 22 | 3:16 PM | -0.6 ft |
| Sat Feb 20 | 2:52 PM | -0.6 ft |
| Sun Feb 21 | 3:34 PM | -0.6 ft |
| Thu Jan 21 | 2:29 PM | -0.6 ft |
| Sun Jan 24 | 4:48 PM | -0.6 ft |
| Fri Feb 19 | 2:07 PM | -0.6 ft |
| Thu Feb 18 | 1:16 PM | -0.4 ft |
| Mon Feb 22 | 4:14 PM | -0.4 ft |
| Wed Jan 20 | 1:37 PM | -0.4 ft |
196 minus tides (below 0 ft) are predicted here in 2027. The table shows up to the 10 lowest that fall between 7 AM and 7 PM — the ones worth planning a clam dig or tidepool walk around.
About this station
OCEANOGRAPHIC INSTITUTION is one of NOAA's reference tide stations — its predictions are computed directly from harmonic analysis of water levels observed here, and other nearby stations are calculated from it.
Rocky shores and the country's biggest northern ranges: Eastport flirts with 20 ft, and the Gulf of Maine funnels weather as much as tide. Harbors here float — or sit in the mud — on the moon's schedule.