Tides Today & Tomorrow in Nantucket, MA

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Nantucket, MA.
Next low tide : in 5h 02m at 9:48 pm (0.7 ft)
Next high tide (tomorrow) : 4:17 am (3.3 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 5:12 am
Moon phase : Waning Gibbous (81% illuminated)
Tide Station Location : Station #8449130
Common Questions About Tides

Nantucket, MA Tides - Feb 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:273.18:142.212:430.71:540.46:514:55Waning Crescent1Fri
2Sat8:183.29:052.21:360.72:480.46:504:57Waning Crescent2Sat
3Sun9:073.39:542.22:270.73:350.36:494:58Waning Crescent3Sun
4Mon9:543.310:392.33:140.64:160.26:484:59Waning Crescent4Mon
5Tue10:393.411:232.43:580.54:550.16:475:01New Moon5Tue
6Wed11:243.54:410.45:330.06:465:02New Moon6Wed
7Thu12:052.612:083.55:250.36:10-0.16:455:03New Moon7Thu
8Fri12:452.812:523.56:110.16:49-0.16:445:04New Moon8Fri
9Sat1:253.01:363.46:590.07:29-0.26:435:06Waxing Crescent9Sat
10Sun2:063.22:233.37:49-0.18:11-0.26:415:07Waxing Crescent10Sun
11Mon2:503.43:133.18:43-0.28:58-0.16:405:08Waxing Crescent11Mon
12Tue3:393.54:092.99:39-0.29:480.06:395:09First Quarter12Tue
13Wed4:333.65:092.710:38-0.210:420.06:385:11First Quarter13Wed
14Thu5:303.76:112.611:39-0.211:390.16:365:12First Quarter14Thu
15Fri6:313.77:172.512:42-0.26:355:13First Quarter15Fri
16Sat7:353.78:232.512:390.21:47-0.26:345:14Waxing Gibbous16Sat
17Sun8:393.89:262.61:430.22:51-0.26:325:15Waxing Gibbous17Sun
18Mon9:393.810:242.72:450.13:47-0.26:315:17Waxing Gibbous18Mon
19Tue10:363.711:182.83:440.14:39-0.26:305:18Full Moon19Tue
20Wed11:313.64:390.05:25-0.26:285:19Full Moon20Wed
21Thu12:072.912:213.55:310.06:09-0.16:275:20Full Moon21Thu
22Fri12:503.01:073.46:21-0.16:50-0.16:255:22Full Moon22Fri
23Sat1:293.11:503.27:09-0.17:300.16:245:23Waning Gibbous23Sat
24Sun2:073.22:323.07:570.08:110.26:225:24Waning Gibbous24Sun
25Mon2:453.23:162.88:450.08:530.36:215:25Waning Gibbous25Mon
26Tue3:263.24:022.69:340.19:380.56:195:26Waning Gibbous26Tue
27Wed4:113.14:512.410:250.210:240.66:185:27Third Quarter27Wed
28Thu4:593.15:412.311:160.311:120.76:165:29Third Quarter28Thu
29Fri5:493.16:342.212:090.46:155:30Third Quarter29Fri
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 1:02 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 81% 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 Gibbous (81% 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