Chatham tides today
Stage Harbor, on the Nantucket Sound side of Chatham at the elbow of Cape Cod, is the reference tide station for the town.
Shaded: night. Green bands: solunar periods (thick = major, thin = minor). Heights in feet above Mean Lower Low Water, the zero of NOAA charts.
Chatham, MA · Tuesday, October 13
Tide falling, 2.6 ft now
Low 8:36 PM
0.3 ft · in 2 h 55 min
| High | 2:40 AM | 3.9 ft |
| Low | 7:54 AM | 0.9 ft |
| High | 2:32 PM | 4.6 ft |
| Low | 8:36 PM | 0.3 ft |
Tide coefficient 100 (average), range 4.3 ft
Sunrise 6:50 AM · sunset 6:02 PM
Waxing crescent, 9% lit · fishing day ★★★☆
Solunar: major 1:19 AM–3:19 AM, minor 9:37 AM–10:37 AM, major 1:43 PM–3:43 PM, minor 6:44 PM–7:44 PM
Chatham tide table, next 7 days
| Day | High tides | Low tides | Coef. | Sun | Moon |
|---|---|---|---|---|---|
| 2:40 AM 3.9 ft · 2:32 PM 4.6 ft | 7:54 AM 0.9 ft · 8:36 PM 0.3 ft | 100 | 6:50 AM–6:02 PM | Waxing crescent ★★★☆ | |
| 3:18 AM 3.8 ft · 3:09 PM 4.5 ft | 8:36 AM 1.0 ft · 9:19 PM 0.4 ft | 96 | 6:51 AM–6:00 PM | Waxing crescent ★★☆☆ | |
| 3:57 AM 3.6 ft · 3:47 PM 4.4 ft | 9:19 AM 1.1 ft · 10:03 PM 0.5 ft | 90 | 6:52 AM–5:59 PM | Waxing crescent ★★☆☆ | |
| 4:38 AM 3.5 ft · 4:31 PM 4.3 ft | 10:04 AM 1.1 ft · 10:50 PM 0.6 ft | 85 | 6:53 AM–5:57 PM | First quarter ★★☆☆ | |
| 5:26 AM 3.4 ft · 5:22 PM 4.2 ft | 10:52 AM 1.2 ft · 11:39 PM 0.7 ft | 80 | 6:54 AM–5:55 PM | First quarter ★★☆☆ | |
| 6:21 AM 3.3 ft · 6:19 PM 4.1 ft | 11:43 AM 1.2 ft | 67 | 6:56 AM–5:54 PM | First quarter ★★☆☆ | |
| 7:17 AM 3.3 ft · 7:17 PM 4.0 ft | 12:31 AM 0.8 ft · 12:37 PM 1.2 ft | 75 | 6:57 AM–5:52 PM | First quarter ★★☆☆ |
Plan around the tide at Chatham
No window of 30 minutes or more below 1.0 ft over the next 7 days in daylight. Try a higher level.
A falling tide uncovers sand bars and tide pools first; plan to be back before the water rises past the level you chose. Not for navigation.
Station Chatham, Stage Harbor (NOAA 8447505). Predicted astronomical tide: wind, river flow and storms can move the real water by a foot or more. 4.3 ft is the average daily range here.
Published by Radif Partners · How the tides are computed · predictions downloaded October 13, 2026
Tide times for Chatham come from the National Ocean Service prediction for station 8447505, Chatham, Stage Harbor. The tide here is semidiurnal: two highs and two lows of similar height every day, about six hours and a quarter apart, with an average daily range of 4.3 ft. Around the new and full moon the range grows to about 5.3 ft on one day in ten, and at the quarter moons it shrinks to 3.3 ft. Heights are in feet above Mean Lower Low Water, the zero of nautical charts, so a negative number is water below that zero: 131 of the 457 days from October 1, 2026 to December 31, 2027 have one, down to -0.6 ft on December 25, 2026. The highest predicted tide of that period is 5.5 ft on November 26, 2026. Clock times are Eastern Time, daylight saving time included.
One town, three different tides
Chatham sits where Cape Cod turns north, and its waters belong to three systems. Stage Harbor, the station on this page, opens south onto Nantucket Sound and averages 4.3 ft from low to high. Chatham Harbor, behind the barrier beaches on the ocean side, has its own NOAA station at Aunt Lydia's Cove under two miles away. And Pleasant Bay to the north is predicted by NOAA from Boston with high water about two and a half hours later and a third of Boston's range, because the tide has to work its way in through the breaks in the outer beach.
So a boater leaving Stage Harbor, a kayaker in Pleasant Bay and someone fishing at the fish pier in Chatham Harbor can see high water hours apart on the same afternoon. Pick the station that matches where you will be.
Sound side flats and the harbor entrance
Along the Nantucket Sound shore, from Harding's Beach toward Monomoy, the tide uncovers sandy flats, and the channel into Stage Harbor shoals at low water. To the west, Wychmere Harbor and Dennis Port are predicted from Boston with high water roughly an hour later and well under half of Boston's range. The lowest low predicted at Stage Harbor this period is -0.6 ft, on December 25, 2026.
Shifting sands
Chatham's outer beaches move: inlets open in storms and close again over years, and the shoals off Monomoy change shape constantly. Tide predictions describe the water level, not where the sand is this season. The Cape Cod tide comparison shows Chatham next to Provincetown, Plymouth, Hyannis and Nantucket.
Highest and lowest tides at Chatham, 2026 to 2027
The six highest highs and six lowest lows predicted for Chatham, Stage Harbor between October 1, 2026 and December 31, 2027, one per day. The high-water dates are the king tides of this station; the low-water dates are the best days to see the flats, bars and tide pools.
| Highest highs | Time | Height |
|---|---|---|
| November 26, 2026 | 12:40 PM | 5.5 ft |
| December 25, 2026 | 12:28 PM | 5.4 ft |
| November 27, 2026 | 1:35 PM | 5.4 ft |
| December 24, 2026 | 11:32 AM | 5.4 ft |
| July 5, 2027 | 1:00 AM | 5.4 ft |
| July 6, 2027 | 1:56 AM | 5.4 ft |
| Lowest lows | Time | Height |
|---|---|---|
| December 25, 2026 | 6:49 PM | -0.6 ft |
| November 26, 2026 | 7:06 PM | -0.5 ft |
| December 24, 2026 | 5:56 PM | -0.5 ft |
| November 25, 2026 | 6:13 PM | -0.5 ft |
| December 26, 2026 | 7:42 PM | -0.5 ft |
| January 23, 2027 | 6:27 PM | -0.5 ft |
Tidal datums at station 8447505
NOAA's averages over the 1983-2001 epoch, measured from the chart zero (MLLW). Average range of the tide (MN): 4.0 ft; great diurnal range (GT): 4.6 ft.
| Datum | Meaning | Height above MLLW |
|---|---|---|
| MHHW | Mean Higher High Water | 4.6 ft |
| MHW | Mean High Water | 4.2 ft |
| MSL | Mean Sea Level | 2.3 ft |
| MLW | Mean Low Water | 0.3 ft |
| MLLW | Mean Lower Low Water (chart zero) | 0.0 ft |
Other stations nearby
- Hyannis tides: Hyannis Port, average range 3.6 ft, highest predicted tide 4.7 ft on July 5, 2027
- Nantucket tides: NANTUCKET, average range 3.5 ft, highest predicted tide 4.4 ft on November 26, 2026
- Provincetown tides: Provincetown, average range 9.9 ft, highest predicted tide 11.6 ft on July 6, 2027
- Plymouth tides: Plymouth, average range 10.0 ft, highest predicted tide 12.2 ft on July 6, 2027
- Boston tides: BOSTON, average range 9.9 ft, highest predicted tide 11.8 ft on November 26, 2026
- Gloucester tides: Gloucester Harbor, average range 9.4 ft, highest predicted tide 11.3 ft on July 6, 2027