New England
Onset Beach
Onset Bay · Massachusetts · NOAA station 8447277 · Tide predictions
41.7417, -70.6583
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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
Cape Cod Bay, MA (221) buoy · 18 mi E · Station 44090
Wind & wave reports →
Nearby tide stations
- Gray Gables · 1.9 mi E
- Cape Cod Canal, RR. bridge · 2.1 mi E
- Monument Beach · 2.8 mi SE
- Cape Cod Canal, Bourne Bridge · 3.4 mi E
- Great Hill · 3.6 mi SW
Plan ahead
2027 tide extremes for this station
Highest predicted high tide: 5.1 ft — Thu Sep 30 · 9:03 AM
Lowest predicted low tide: -0.8 ft — Sat Jan 23 · 2:39 AM
Biggest single-day swing: 5.5 ft on Sat Jan 23
Best daytime minus tides of 2027
| Date | Low tide | Height |
|---|---|---|
| Sat Jan 23 | 3:42 PM | -0.7 ft |
| Sun Feb 21 | 3:11 PM | -0.7 ft |
| Sun Jan 24 | 4:21 PM | -0.7 ft |
| Mon Feb 22 | 3:46 PM | -0.7 ft |
| Fri Jan 22 | 2:57 PM | -0.6 ft |
| Sat Feb 20 | 2:32 PM | -0.6 ft |
| Mon Jan 25 | 4:57 PM | -0.6 ft |
| Tue Feb 23 | 4:19 PM | -0.6 ft |
| Mon Mar 22 | 3:31 PM | -0.5 ft |
| Thu Jan 21 | 2:07 PM | -0.5 ft |
224 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
NOAA builds the predictions for Onset Beach, Onset Bay from the NEWPORT station: high tides about 1.03× the height, 41 min later; low tides about 1.03× the height, 85 min later.
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.