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Tidal Station Locations and Ranges
MASSACHUSETTS, outer coast
Mean Spring Mean Tide 
Range Range Level
Merrimack River
Plum Island, Merrimack River Entrance 42° 49.0' 70° 49.2' 8.00 9.12 4.30 Predictions
Newburyport 42° 48.7' 70° 51.9' 7.8 9.0 4.2 Predictions
Salisbury Point 42° 50.3' 70° 54.5' 7.64 8.71 4.01 Predictions
Merrimacport 42° 49.5' 70° 59.3' 7.05 8.04 3.70 Predictions
Riverside 42° 45.8' 71° 04.6' 5.72 6.52 2.80 Predictions
Plum Island Sound (south end) 42° 42.6' 70° 47.3' 8.6 9.9 4.6 Predictions
Essex 42° 37.9' 70° 46.6' 9.18 10.47 4.90 Predictions
Annisquam, Lobster Cove 42° 39.3' 70° 40.6' 8.81 10.04 4.74 Predictions
Rockport 42° 39.5' 70° 36.9' 8.70 9.92 4.71 Predictions
Gloucester Harbor 42° 36.6' 70° 39.6' 8.80 10.03 4.73 Predictions
Salem, Salem Harbor 42° 31.4' 70° 52.6' 8.93 10.18 4.79 Predictions
Lynn, Lynn Harbor 42° 27.5' 70° 56.6' 9.16 10.44 4.92 Predictions
Boston Harbor
Mean Spring Mean Tide
Range Range Level
Boston Light 42° 19.7' 70° 53.5' 9.05 10.03 4.85 Predictions
Deer Island (south end) 42° 20.7' 70° 57.5' 9.3 10.8 4.9 Predictions
BOSTON 42° 21.3' 71° 03.1' 9.49 11.07 5.09 Predictions
Charlestown, Charles River entrance 42° 22.5' 71° 03.0' 9.5 11.0 5.0 Predictions
Amelia Earhart Dam, Mystic River 42° 23.7' 71° 04.6' 9.56 10.89 5.11 Predictions
Chelsea St. Bridge, Chelsea River 42° 23.2' 71° 01.4' 9.6 11.1 5.1 Predictions
Neponset, Neponset River 42° 17.1' 71° 02.4' 9.5 11.0 5.0 Predictions
Moon Head 42° 18.5' 70° 59.3' 9.4 10.9 5.0 Predictions
Hingham Bay
Mean Spring Mean Tide
Range Range Level
Nut Island, Quincy Bay 42° 16.8' 70° 57.3' 9.42 10.74 5.05 Predictions
Weymouth Fore River Bridge 42° 14.7' 70° 58.1' 9.5 11.0 5.0 Predictions
Crow Point, Hingham Harbor entrance 42° 15.7' 70° 53.6' 9.4 10.9 5.0 Predictions
Hingham 42° 14.8' 70° 53.1' 9.5 11.0 5.0 Predictions
Nantasket Beach, Weir River 42° 16.2' 70° 51.6' 9.4 10.9 5.0 Predictions
Hull 42° 18.2' 70° 55.2' 9.3 10.8 5.0 Predictions
Cohasset Harbor to Davis Bank
Mean Spring Mean Tide
Range Range Level
Cohasset Harbor (White Head) 42° 14.9' 70° 47.0' 8.8 10.2 4.7 Predictions
Scituate, Scituate Harbor 42° 12.1' 70° 43.6' 8.94 10.19 4.83 Predictions
Damons Point, North River 42° 09.6' 70° 44.0' 8.5 9.9 4.5 Predictions
Brant Rock, Green Harbor River 42° 05.0' 70° 38.8' 9.08 10.35 4.89 Predictions
Cape Cod Bay
Duxbury, Duxbury Harbor 42° 02.3' 70° 40.2' 9.89 11.27 5.30 Predictions
Plymouth 41° 57.6' 70° 39.7' 9.76 11.13 5.22 Predictions
Cape Cod Canal, east entrance 41° 46.3' 70° 30.4' 8.74 9.96 4.59 Predictions
Cape Cod Canal, Sagamore 41° 46.5' 70° 32.1' 7.90 9.01 4.25 Predictions
Cape Cod Canal, Bournedale 41° 46.2' 70° 33.7' 6.18 7.05 3.37 Predictions
Cape Cod Canal, Bourne Bridge 41° 44.7' 70° 35.6' 4.29 4.89 2.42 Predictions
Barnstable Harbor, Beach Point 41° 43.3' 70° 17.1' 9.5 11.0 5.0 Predictions
Sesuit Harbor, East Dennis 41° 45.1' 70° 09.3' 9.73 11.09 5.14 Predictions
Wellfleet 41° 55.8' 70° 02.5' 10.0 11.6 5.4 Predictions
Provincetown 42° 03' 70° 11' 9.1 10.6 4.8 Predictions
Cape Cod
Chatham, Stage Harbor 41° 40.0' 69° 58.0' 3.95 4.50 2.23 Predictions
Chatham Harbor, Aunt Lydias Cove 41° 41.6' 69° 57.0' 4.63 5.27 2.43 Predictions
Pleasant Bay 41° 44.2' 69° 58.9' 3.2 3.7 1.7 Predictions
Georges Shoal 41° 41.3' 69° 45.6' 4.2 4.8 2.2 Predictions
Nantucket Sound, north side
Mean Spring Mean Tide
Range Range Level
Stage Harbor 41° 39.9' 69° 58.2' 3.9 4.7 2.0 Predictions
Saquatucket Harbor 41° 40.1' 70° 03.4' 3.72 4.24 2.14 Predictions
Wychmere Harbor 41° 39.9' 70° 03.9' 3.7 4.3 1.9 Predictions
Dennisport 41° 39.5' 70° 06.9' 3.4 4.1 1.8 Predictions
South Yarmouth, Bass River 41° 39.9' 70° 11.0' 2.8 3.4 1.5 Predictions
Hyannis Port 41° 37.8' 70° 18.0' 3.1 3.7 1.6 Predictions
Cotuit Highlands 41° 36.5' 70° 26.2' 2.5 3.0 1.3 Predictions
Poponesset Island, Poponesset Bay 41° 35.2' 70° 27.8' 2.3 2.8 1.2 Predictions
Falmouth Heights 41° 32.7' 70° 35.9' 1.3 1.6 0.6 Predictions
Nantucket Island
Mean Spring Mean Tide
Range Range Level
Great Point 41° 23.2' 70° 02.8' 3.1 3.7 1.6 Predictions
NANTUCKET 41° 17.1' 70° 05.8' 3.0 3.36 1.7 Predictions
Eel Point 41° 17.5' 70° 12.5' 2.3 2.7 1.2 Predictions
Muskeget Island, north side 41° 20.2' 70° 18.3' 2.0 2.4 1.1 Predictions
Marthas Vineyard
Mean Spring Mean Tide
Range Range Level
Wasque Point, Chappaquiddick Island 41° 21.8' 70° 27.0' 1.1 1.4 0.6 Predictions
Squibnocket Point 41° 18.7' 70° 46.1' 2.9 3.7 1.6 Predictions
Nomans Land 41° 15.7' 70° 49.0' 3.0 3.6 1.6 Predictions
Gay Head 41° 21.2' 70° 49.8' 2.9 3.5 1.5 Predictions
Cedar Tree Neck 41° 26.1' 70° 41.8' 2.2 2.8 1.2 Predictions
Oak Bluffs 41° 27.5' 70° 33.3' 1.7 2.0 0.9 Predictions
Edgartown 41° 23.3' 70° 30.7' 1.9 2.3 1.0 Predictions
Vineyard Sound
Mean Spring Mean Tide
Range Range Level
Woods Hole
Little Harbor 41° 31.2' 70° 39.9' 1.4 1.8 0.8 Predictions
OCEANOGRAPHIC INSTITUTION 41° 31.4' 70° 40.3' 1.8 2.33 1.0 Predictions
Uncatena Island (south side) 41° 30.9' 70° 42.2' 3.6 4.5 1.9 Predictions
Quicks Hole, North side 41° 26.9' 70° 51.4' 3.5 4.4 1.8 Predictions
Cuttyhunk 41° 25.5' 70° 55.0' 3.37 4.25 1.81 Predictions
Buzzards Bay
Mean Spring Mean Tide
Range Range Level
Penikese Island 41° 27.0' 70° 55.3' 3.4 4.2 1.8 Predictions
Chappaquoit Point, West Falmouth Harbor 41° 36.3' 70° 39.1' 3.82 4.70 2.07 Predictions
Monument Beach 41° 42.9' 70° 37.0' 3.97 5.00 2.17 Predictions
Gray Gables 41° 44.1' 70° 37.4' 3.62 4.45 1.98 Predictions
Cape Cod Canal, RR. bridge 41° 44.5' 70° 37.0' 3.43 4.22 1.93 Predictions
Onset Beach, Onset Bay 41° 44.5' 70° 39.5' 3.50 4.41 1.97 Predictions
Great Hill 41° 42.7' 70° 42.9' 3.96 4.99 2.15 Predictions
Marion, Sippican Harbor 41° 43.2' 70° 45.6' 4.0 4.9 2.2 Predictions
Piney Point 41° 41.7' 70° 43.2' 3.91 4.81 2.13 Predictions
Mattapoisett, Mattapoisett Harbor 41° 39' 70° 49' 3.9 4.8 2.1 Predictions
Clarks Point 41° 35.6' 70° 54.0' 3.56 4.49 1.93 Predictions
New Bedford 41° 38.4' 70° 55.1' 3.7 4.6 1.9 Predictions
Round Hill Point 41° 32.3' 70° 55.7' 3.43 4.32 1.85 Predictions
Westport River
Westport Harbor 41° 31' 71° 05' 3.0 3.7 1.6 Predictions
Hix Bridge, East Branch 41° 34.2' 71° 04.4' 2.7 3.4 1.4 Predictions
RHODE ISLAND, and MASSACHUSETTS
Narragansett Bay
Mean Spring Mean Tide
Range Range Level
Sakonnet River
Sakonnet 41° 27.9' 71° 11.6' 3.17 3.99 1.70 Predictions
Sachuest, Flint Point 41° 29.2' 71° 14.3' 3.13 3.94 1.69 Predictions
The Glen 41° 33.5' 71° 14.2' 3.40 4.28 1.84 Predictions
Nannaquaket Neck 41° 37.1' 71° 12.2' 3.50 4.41 1.91 Predictions
Anthony Point 41° 38.3' 71° 12.7' 3.75 4.73 2.05 Predictions
North End, Bay Oil pier 41° 39.1' 71° 12.6' 4.17 5.25 2.24 Predictions
Castle Hill 41° 27.8' 71° 21.7' 3.25 4.10 1.77 Predictions
NEWPORT 41° 30.3' 71° 19.6' 3.47 4.38 1.87 Predictions
Conanicut Island
Beavertail Point 41° 27.1' 71° 24.1' 3.34 4.21 1.86 Predictions
West Jamestown, Dutch Island Harbor 41° 29.8' 71° 23.2' 3.46 4.36 1.87 Predictions
Conanicut Point 41° 34.4' 71° 22.3' 3.8 4.7 2.0 Predictions
Prudence Island, (south end) 41° 34.8' 71° 19.3' 3.74 4.71 2.03 Predictions
Bristol Ferry 41° 38.2' 71° 15.3' 4.08 5.14 2.20 Predictions
Bristol, Bristol Harbor 41° 40.1' 71° 16.7' 4.1 5.1 2.2 Predictions
Bristol Highlands 41° 41.8' 71° 17.6' 4.2 5.2 2.2 Predictions
Fall River, Massachusetts 41° 42.3' 71° 09.8' 4.36 5.41 2.35 Predictions
Steep Brook, Taunton River 41° 44.4' 71° 07.9' 4.51 5.68 2.44 Predictions
Bay Spring, Bullock Cove 41° 45.1' 71° 21.1' 4.25 5.23 2.30 Predictions
Pawtuxet, Pawtuxet Cove 41° 45.7' 71° 23.3' 4.35 5.35 2.35 Predictions
Providence, State Pier no.1 41° 48.4' 71° 24.1' 4.41 5.63 2.40 Predictions
Rumford, Seekonk River 41° 50.4' 71° 22.4' 4.66 5.73 2.51 Predictions
Pawtucket, Seekonk River 41° 52.1' 71° 22.8' 4.6 5.8 2.5 Predictions
East Greenwich 41° 39.9' 71° 26.7' 4.0 5.0 2.1 Predictions
Wickford 41° 34.3' 71° 26.7' 3.71 4.56 2.01 Predictions
Watson Pier, Boston Neck 41° 27.6' 71° 25.7' 3.32 4.18 1.79 Predictions
Narragansett Pier 41° 25.3' 71° 27.3' 3.2 4.0 1.7 Predictions
RHODE ISLAND, Outer Coast
Mean Spring Mean Tide
Range Range Level
Point Judith, Harbor of Refuge 41° 21.8' 71° 29.4' 3.00 3.13 1.63 Predictions
Block Island (Old Harbor) 41° 10.4' 71° 33.4' 2.85 3.51 1.54 Predictions
Southwest Point, Block Island 41° 09.8' 71° 36.6' 2.60 3.20 1.41 Predictions
Weekapaug Point, Block Island Sound 41° 19.7' 71° 45.7' 2.53 3.11 1.39 Predictions
Watch Hill Point 41° 18.3' 71° 51.6' 2.6 3.2 1.4 Predictions
Westerly, Pawcatuck River 41° 22.9' 71° 49.9' 2.6 3.1 1.5 Predictions
Revised: 16 November, 2006
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