Tides Today & Tomorrow in Nantucket, MA

TIDE TIMES for Sunday, August 9, 2026
The tide is currently falling in Nantucket, MA.
Next low tide : in 1h 23m at 3:10 am (0.0 ft)
Next high tide : 9:38 am (2.8 ft)
Sunset today : 7:47 pm
Sunrise tomorrow : 5:43 am
Moon phase : Waning Crescent (13% illuminated)
Tide Station Location : Station #8449130
Common Questions About Tides

Nantucket, MA Tides - Aug 2094

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:323.95:103.810:23-0.210:530.05:367:56Third Quarter1Sun
2Mon5:323.66:063.911:170.011:550.15:377:55Third Quarter2Mon
3Tue6:343.47:023.912:110.25:387:54Third Quarter3Tue
4Wed7:363.27:593.912:570.11:060.45:397:53Third Quarter4Wed
5Thu8:403.08:563.82:010.22:020.55:407:52Waning Crescent5Thu
6Fri9:422.99:503.83:040.22:590.75:417:51Waning Crescent6Fri
7Sat10:392.810:413.74:020.33:530.75:427:49Waning Crescent7Sat
8Sun11:302.811:293.74:530.34:420.75:437:48Waning Crescent8Sun
9Mon12:162.85:370.35:280.75:447:47New Moon9Mon
10Tue12:143.612:572.86:180.36:110.75:457:45New Moon10Tue
11Wed12:563.61:342.96:570.36:540.75:467:44New Moon11Wed
12Thu1:353.52:092.97:340.47:350.75:477:43New Moon12Thu
13Fri2:133.52:443.08:110.48:170.75:487:41Waxing Crescent13Fri
14Sat2:513.43:203.18:480.49:000.75:497:40Waxing Crescent14Sat
15Sun3:313.33:583.29:260.59:450.65:507:39Waxing Crescent15Sun
16Mon4:143.24:383.210:050.610:320.65:517:37Waxing Crescent16Mon
17Tue5:003.05:213.310:460.611:210.65:527:36First Quarter17Tue
18Wed5:482.96:053.411:290.75:537:34First Quarter18Wed
19Thu6:392.86:533.512:110.512:140.75:547:33First Quarter19Thu
20Fri7:332.87:453.71:040.41:030.75:557:31First Quarter20Fri
21Sat8:302.78:413.82:000.31:580.65:567:30Waxing Gibbous21Sat
22Sun9:282.89:384.02:580.22:560.55:577:28Waxing Gibbous22Sun
23Mon10:242.910:354.13:550.13:530.45:587:27Waxing Gibbous23Mon
24Tue11:193.111:324.24:49-0.14:500.25:597:25Full Moon24Tue
25Wed12:153.35:41-0.25:460.06:007:24Full Moon25Wed
26Thu12:304.31:103.56:32-0.36:42-0.26:017:22Full Moon26Thu
27Fri1:274.32:033.77:22-0.37:39-0.26:027:20Waning Gibbous27Fri
28Sat2:234.22:543.98:12-0.38:36-0.26:037:19Waning Gibbous28Sat
29Sun3:184.03:464.09:03-0.19:34-0.26:047:17Waning Gibbous29Sun
30Mon4:163.74:414.09:550.010:34-0.16:057:16Waning Gibbous30Mon
31Tue5:153.55:363.910:500.211:350.06:067:14Third Quarter31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8449130)

Common Questions About Nantucket, MA Tides

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What time does the tide turn (slack tide) in Nantucket, MA today?

Slack tide in Nantucket, MA is approximately 6:24 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 Nantucket, MA?

Nantucket, MA is currently in a spring phase. Tonight's moon is 13% 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 near their weekly maximum.

What datum are Nantucket, 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 Nantucket, MA?

Tide predictions for Nantucket, 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 Nantucket, MA?

Tide data for Nantucket, MA is sourced from NOAA Station #8449130. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8449130.

What is the moon phase in Nantucket, MA tonight?

Tonight the moon over Nantucket, MA is Waning Crescent (13% illuminated). This places Nantucket, MA in a spring tide cycle, so tidal ranges are near their weekly maximum 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