Boston tide times
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Then–
Tide chart · today
The next 7 days
Boston at a glance
- Tides
- Twice a day
- Typical range
- 10.3 fthigh to low
- Highest of 2027
- 11.8 ftTue, Jul 6
- Lowest of 2027
- -1.8 ftSat, Jan 23
- Record high
- 15.2 ftJan 4, 2018
- High water after the moon
- 11 h 11 min
The tide at Boston
- Pattern
- Twice-daily
Two high tides and two low tides a day, about 12 h 25 min apart. The two highs are close: on average just 0.9 ft apart. Form number 0.16. - Typical range
- 10.3 ft from the higher high to the lower low on an average day (3.13 m) - a bigger range than 91% of the 235 places on this site.
- After the moon
- High water comes about 11 h 11 min after the moon is highest in the sky.
2027: the biggest and smallest tides
| Tue, Jul 6 | 1:05 am | 11.8 ft | |
| Mon, Aug 2 | 11:54 pm | 11.8 ft | |
| Sat, Jan 23 | 11:24 am | 11.7 ft |
| Sat, Jan 23 | 5:49 pm | -1.8 ft | in the dark |
| Sun, Feb 21 | 5:28 pm | -1.5 ft | in the dark |
| Wed, Aug 4 | 7:11 am | -1.4 ft | in daylight |
| Sat, Feb 20 | 4:39 pm | -1.4 ft | |
| Wed, Aug 4 | 7:11 am | -1.4 ft | |
| Tue, Jul 6 | 7:32 am | -1.3 ft |
172 low tides in 2027 drop below zero - below the average lower low water - and uncover more shore than usual.
Records
- Highest water recorded
- 15.2 ft (4.62 m) on Jan 4, 2018 - 4.9 ft above the average higher high.
- Lowest water recorded
- -3.7 ft (-1.14 m) on Mar 24, 1940.
- Highest tide the moon and sun can raise
- 12.3 ft (3.76 m) - the highest astronomical tide in NOAA’s 19-year cycle, which fell on Nov 15, 2016.
Tide times nearby
- Providence42 mi southwest
- Fall River45 mi south
- Warwick (Conimicut Point)47 mi south
- New Bedford51 mi south
- Portsmouth Harbor (Kittery)53 mi north
See the moon move the ocean - the same tide, on a globe seen from the moon.
Heights are above mean lower low water (MLLW), the zero of US charts; times are local. The year’s tides are NOAA’s official predictions - wind and air pressure can move the real water a foot or more. Form number: (K1+O1)/(M2+S2) from NOAA’s harmonic constants - below 0.25 twice-daily, above 3 once-daily. Massachusetts, 42.354°N 71.050°W. Predictions and records: NOAA CO-OPS, station 8443970. Not for navigation or safety. For a boat, a crossing of sand that floods, or a swim, use the official tables and local advice. No ads, no tracking.