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

TIDE TIMES for Friday, August 21, 2026
The tide is currently falling in Woods Hole - Great Harbor, MA.
Next low tide (tomorrow) : in 8h 10m at 12:39 am (0.7 ft)
Next high tide (tomorrow) : 4:09 am (1.2 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 - Aug 1937

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:401.74:272.510:420.35:368:00Waning Crescent1Sun
2Mon4:431.75:302.612:170.111:43 AM0.25:377:59Waning Crescent2Mon
3Tue5:431.96:252.71:140.012:420.15:387:58Waning Crescent3Tue
4Wed6:372.07:162.82:11-0.11:480.15:397:57Waning Crescent4Wed
5Thu7:292.28:052.83:04-0.12:550.05:407:56New Moon5Thu
6Fri8:202.38:532.73:52-0.23:500.05:417:55New Moon6Fri
7Sat9:102.49:392.64:35-0.14:380.15:427:53New Moon7Sat
8Sun9:582.410:252.45:160.05:270.25:437:52Waxing Crescent8Sun
9Mon10:472.411:112.25:570.16:240.35:457:51Waxing Crescent9Mon
10Tue11:362.311:581.96:380.37:290.55:467:49Waxing Crescent10Tue
11Wed12:282.27:170.58:320.65:477:48Waxing Crescent11Wed
12Thu12:481.71:202.17:390.79:390.75:487:47First Quarter12Thu
13Fri1:371.52:122.08:020.810:470.75:497:45First Quarter13Fri
14Sat2:251.43:051.98:390.811:450.75:507:44First Quarter14Sat
15Sun3:151.34:041.89:240.85:517:43First Quarter15Sun
16Mon4:121.35:051.912:310.710:18 AM0.85:527:41Waxing Gibbous16Mon
17Tue5:101.35:562.01:070.711:11 AM0.75:537:40Waxing Gibbous17Tue
18Wed6:001.56:382.11:300.712:010.65:547:38Waxing Gibbous18Wed
19Thu6:451.67:182.21:480.612:520.55:557:37Waxing Gibbous19Thu
20Fri7:281.87:582.32:210.41:490.45:567:35Full Moon20Fri
21Sat8:112.08:382.42:590.32:490.35:577:34Full Moon21Sat
22Sun8:552.19:202.43:370.23:450.25:587:32Full Moon22Sun
23Mon9:402.310:032.34:150.24:370.25:597:31Full Moon23Mon
24Tue10:252.410:482.24:550.25:330.26:007:29Waning Gibbous24Tue
25Wed11:142.511:372.15:390.26:370.26:017:28Waning Gibbous25Wed
26Thu12:082.56:300.37:460.26:027:26Waning Gibbous26Thu
27Fri12:312.01:062.57:280.38:530.26:037:25Third Quarter27Fri
28Sat1:271.92:042.48:280.410:010.26:047:23Third Quarter28Sat
29Sun2:221.83:042.49:330.411:060.26:057:21Third Quarter29Sun
30Mon3:211.84:082.410:460.36:067:20Third Quarter30Mon
31Tue4:241.85:122.412:040.111:53 AM0.36:077:18Waning 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 2:24 am — 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