Know the Tide

Know the tide.

New England

Boston Light

Massachusetts · NOAA station 8444162 · Tide predictions

· Eastern Time · Feet / MLLW (mean lower low water)

42.3283, -70.8917

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48-hour outlook

Drag across the curve to inspect any time. Weather icons show the forecast at each high tide.

The next seven days

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H = high tide · L = low tide · highs & lows in local time

On the water nearby

Boston buoy · 12 mi E · Station 44013
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Nearby tide stations

Plan ahead

2027 tide extremes for this station

Highest predicted high tide: 11.4 ft — Tue Jul 6 · 1:05 AM

Lowest predicted low tide: -1.7 ft — Sat Jan 23 · 5:49 PM

Biggest single-day swing: 13.1 ft on Sat Jan 23

Best daytime minus tides of 2027
DateLow tideHeight
Sat Jan 235:49 PM-1.7 ft
Sun Jan 246:39 PM-1.7 ft
Fri Jan 224:57 PM-1.6 ft
Sun Feb 215:28 PM-1.5 ft
Wed Aug 47:10 AM-1.4 ft
Tue Jul 67:31 AM-1.4 ft
Mon Feb 226:15 PM-1.3 ft
Sat Feb 204:39 PM-1.3 ft
Thu Aug 58:00 AM-1.2 ft
Wed Jul 78:23 AM-1.2 ft

178 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

Boston Light 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.

Diurnal range9.8 ft
Mean range9.1 ft
RegionNew England
NOAA chart13270
Station since2000