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 2h 32m 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 - Dec 2007

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:393.05:493.311:100.611:450.36:464:12Third Quarter1Sat
2Sun6:333.16:503.012:140.66:474:11Third Quarter2Sun
3Mon7:253.27:502.812:350.41:190.56:484:11Waning Crescent3Mon
4Tue8:123.38:462.71:250.62:210.56:494:11Waning Crescent4Tue
5Wed8:553.39:372.62:130.73:140.46:504:11Waning Crescent5Wed
6Thu9:353.410:242.52:580.73:580.36:514:11Waning Crescent6Thu
7Fri10:153.411:082.53:390.84:390.26:524:11New Moon7Fri
8Sat10:553.511:502.54:190.85:170.26:534:11New Moon8Sat
9Sun11:353.54:570.85:550.16:544:11New Moon9Sun
10Mon12:302.512:153.55:360.86:330.16:544:11New Moon10Mon
11Tue1:092.512:553.56:150.87:120.16:554:11New Moon11Tue
12Wed1:482.51:353.56:550.87:520.16:564:11Waxing Crescent12Wed
13Thu2:292.52:163.57:380.78:330.16:574:11Waxing Crescent13Thu
14Fri3:122.63:003.48:260.79:170.16:584:11Waxing Crescent14Fri
15Sat3:572.73:503.39:190.610:020.16:584:11First Quarter15Sat
16Sun4:442.94:453.210:170.510:490.16:594:12First Quarter16Sun
17Mon5:333.15:423.111:160.411:370.17:004:12First Quarter17Mon
18Tue6:223.46:432.912:170.27:004:12First Quarter18Tue
19Wed7:153.67:462.912:280.11:200.07:014:13Waxing Gibbous19Wed
20Thu8:093.98:482.81:230.12:22-0.27:014:13Waxing Gibbous20Thu
21Fri9:044.19:482.82:190.13:20-0.47:024:14Waxing Gibbous21Fri
22Sat9:594.210:482.83:140.14:16-0.57:034:14Full Moon22Sat
23Sun10:554.311:472.84:080.05:10-0.67:034:15Full Moon23Sun
24Mon11:524.35:020.06:04-0.67:034:15Full Moon24Mon
25Tue12:422.912:474.25:560.06:55-0.57:044:16Full Moon25Tue
26Wed1:352.91:394.16:500.17:46-0.47:044:17Waning Gibbous26Wed
27Thu2:262.92:313.87:450.28:36-0.27:044:17Waning Gibbous27Thu
28Fri3:172.93:253.58:420.39:26-0.17:054:18Waning Gibbous28Fri
29Sat4:093.04:203.29:410.410:160.17:054:19Third Quarter29Sat
30Sun4:593.05:152.910:420.411:030.37:054:19Third Quarter30Sun
31Mon5:483.16:112.711:420.511:490.57:054:20Third Quarter31Mon
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