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 1h 21m 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 - Nov 2007

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu6:082.96:153.811:260.67:115:36Third Quarter1Thu
2Fri7:093.07:193.612:230.112:310.67:125:35Third Quarter2Fri
3Sat8:093.08:223.41:210.31:370.77:135:33Third Quarter3Sat
4Sun8:053.18:233.21:170.41:440.66:154:32Waning Crescent4Sun
5Mon8:533.39:183.02:090.52:460.56:164:31Waning Crescent5Mon
6Tue9:353.410:082.92:550.63:370.46:174:30Waning Crescent6Tue
7Wed10:133.410:542.83:360.74:220.36:184:29Waning Crescent7Wed
8Thu10:503.511:372.74:140.75:020.26:194:28New Moon8Thu
9Fri11:263.54:510.85:400.26:214:27New Moon9Fri
10Sat12:162.712:033.55:280.86:180.26:224:26New Moon10Sat
11Sun12:542.612:403.56:050.96:560.26:234:25New Moon11Sun
12Mon1:322.61:183.56:430.97:360.26:244:24Waxing Crescent12Mon
13Tue2:112.61:573.57:220.98:170.26:254:23Waxing Crescent13Tue
14Wed2:542.52:393.58:040.99:020.36:274:22Waxing Crescent14Wed
15Thu3:392.53:253.48:500.99:490.36:284:21Waxing Crescent15Thu
16Fri4:282.54:163.49:420.910:360.36:294:20First Quarter16Fri
17Sat5:162.75:113.310:380.811:230.26:304:19First Quarter17Sat
18Sun6:052.96:073.311:360.76:314:19First Quarter18Sun
19Mon6:553.17:073.212:120.212:370.56:334:18First Quarter19Mon
20Tue7:453.48:083.11:020.21:400.26:344:17Waxing Gibbous20Tue
21Wed8:353.79:073.11:550.22:40-0.16:354:16Waxing Gibbous21Wed
22Thu9:254.010:053.12:460.13:37-0.46:364:16Waxing Gibbous22Thu
23Fri10:174.211:033.13:370.14:31-0.66:374:15Full Moon23Fri
24Sat11:104.44:280.05:25-0.76:384:15Full Moon24Sat
25Sun12:013.112:064.45:200.06:19-0.76:394:14Full Moon25Sun
26Mon12:573.01:014.46:130.17:13-0.66:414:14Waning Gibbous26Mon
27Tue1:523.01:554.37:070.18:07-0.56:424:13Waning Gibbous27Tue
28Wed2:473.02:524.18:030.39:02-0.36:434:13Waning Gibbous28Wed
29Thu3:452.93:503.89:030.49:59-0.16:444:12Third Quarter29Thu
30Fri4:433.04:503.510:060.510:530.16:454:12Third Quarter30Fri
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