Tides Today & Tomorrow in Woods Hole – Great Harbor, MA

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Woods Hole - Great Harbor, MA.
Next low tide (tomorrow) : 12:39 am (0.7 ft)
Next high tide : in 6h 27m at 4:02 pm (1.8 ft)
Sunset today : 7:33 pm
Sunrise tomorrow : 5:57 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8447930
Common Questions About Tides

Woods Hole – Great Harbor, MA Tides - May 1938

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:441.910:102.74:47-0.44:21-0.15:397:39New Moon1Sun
2Mon10:331.911:022.75:42-0.45:15-0.15:387:40Waxing Crescent2Mon
3Tue11:261.911:572.56:43-0.46:180.05:377:41Waxing Crescent3Tue
4Wed12:231.87:45-0.37:320.15:367:42Waxing Crescent4Wed
5Thu12:552.41:211.88:45-0.38:480.15:347:43First Quarter5Thu
6Fri1:512.22:171.89:44-0.210:050.25:337:44First Quarter6Fri
7Sat2:472.03:141.810:43-0.211:180.15:327:46First Quarter7Sat
8Sun3:441.84:141.911:38-0.15:317:47Waxing Gibbous8Sun
9Mon4:431.75:132.012:200.112:280.05:307:48Waxing Gibbous9Mon
10Tue5:381.66:052.21:200.01:160.15:287:49Waxing Gibbous10Tue
11Wed6:271.66:522.32:180.02:050.25:277:50Waxing Gibbous11Wed
12Thu7:121.67:382.43:100.02:510.35:267:51Full Moon12Thu
13Fri7:581.68:242.43:540.03:200.45:257:52Full Moon13Fri
14Sat8:431.69:092.44:320.03:080.45:247:53Full Moon14Sat
15Sun9:281.69:542.35:060.13:360.45:237:54Full Moon15Sun
16Mon10:131.610:392.25:360.24:130.55:227:55Waning Gibbous16Mon
17Tue10:591.511:252.06:070.34:540.55:217:56Waning Gibbous17Tue
18Wed11:481.46:460.35:450.65:207:57Waning Gibbous18Wed
19Thu12:131.912:381.47:290.46:480.75:197:58Waning Gibbous19Thu
20Fri1:021.71:281.48:100.47:520.75:197:59Third Quarter20Fri
21Sat1:471.62:151.48:490.48:520.75:188:00Third Quarter21Sat
22Sun2:311.63:031.59:300.49:550.75:178:01Third Quarter22Sun
23Mon3:191.53:561.610:130.410:570.55:168:01Third Quarter23Mon
24Tue4:141.54:511.910:560.311:540.45:158:02Waning Crescent24Tue
25Wed5:111.65:432.111:390.25:158:03Waning Crescent25Wed
26Thu6:021.76:322.412:490.212:230.15:148:04Waning Crescent26Thu
27Fri6:511.87:202.71:480.01:120.05:138:05Waning Crescent27Fri
28Sat7:411.98:102.92:50-0.22:090.05:138:06New Moon28Sat
29Sun8:312.09:013.03:44-0.33:09-0.15:128:07New Moon29Sun
30Mon9:232.19:533.04:35-0.44:06-0.15:128:08New Moon30Mon
31Tue10:142.110:442.95:28-0.45:03-0.15:118:08Waxing Crescent31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447930)

Common Questions About Woods Hole - Great Harbor, MA Tides

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What time does the tide turn (slack tide) in Woods Hole - Great Harbor, MA today?

Slack tide in Woods Hole - Great Harbor, MA is approximately 8:20 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Woods Hole - Great Harbor, MA?

Woods Hole - Great Harbor, MA is currently in a transitional phase. Tonight's moon is 65% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are shifting between spring and neap.

What datum are Woods Hole - Great Harbor, MA tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Woods Hole - Great Harbor, MA?

Tide predictions for Woods Hole - Great Harbor, MA come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Woods Hole - Great Harbor, MA?

Tide data for Woods Hole - Great Harbor, MA is sourced from NOAA Station #8447930. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8447930.

What is the moon phase in Woods Hole - Great Harbor, MA tonight?

Tonight the moon over Woods Hole - Great Harbor, MA is First Quarter (65% illuminated). This places Woods Hole - Great Harbor, MA in a transitional tide cycle, so tidal ranges are shifting between spring and neap this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA