Tides Today & Tomorrow in Nantucket, MA

TIDE TIMES for Thursday, July 16, 2026
The tide is currently falling in Nantucket, MA.
Next low tide : in 5h 54m at 8:02 am (-0.3 ft)
Next high tide : 2:43 pm (3.2 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 5:21 am
Moon phase : Waxing Crescent (7% illuminated)
Tide Station Location : Station #8449130
Common Questions About Tides

Nantucket, MA Tides - Sep 1992

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:043.54:214.19:360.110:21-0.16:077:13Waxing Crescent1Tue
2Wed5:023.35:164.010:290.311:210.06:087:11First Quarter2Wed
3Thu6:013.16:133.911:250.56:097:09First Quarter3Thu
4Fri7:002.97:113.712:200.212:210.66:107:08First Quarter4Fri
5Sat8:002.88:093.61:200.41:180.76:117:06First Quarter5Sat
6Sun8:592.89:063.52:210.52:170.86:127:04Waxing Gibbous6Sun
7Mon9:522.89:593.53:200.63:150.86:137:03Waxing Gibbous7Mon
8Tue10:382.910:463.44:090.64:080.76:147:01Waxing Gibbous8Tue
9Wed11:193.011:293.44:500.64:540.76:156:59Waxing Gibbous9Wed
10Thu11:583.15:270.65:370.66:166:58Full Moon10Thu
11Fri12:123.312:353.26:020.66:180.56:176:56Full Moon11Fri
12Sat12:523.21:113.36:370.66:580.56:186:54Full Moon12Sat
13Sun1:323.21:473.47:110.67:380.46:196:52Full Moon13Sun
14Mon2:113.12:223.47:460.78:180.46:206:51Waning Gibbous14Mon
15Tue2:503.02:593.58:220.79:000.36:216:49Waning Gibbous15Tue
16Wed3:312.93:383.59:010.79:450.36:226:47Waning Gibbous16Wed
17Thu4:162.94:223.69:430.710:350.36:236:46Waning Gibbous17Thu
18Fri5:052.85:133.710:310.711:270.36:246:44Third Quarter18Fri
19Sat5:572.76:073.711:230.76:256:42Third Quarter19Sat
20Sun6:532.87:063.812:210.212:200.66:266:40Third Quarter20Sun
21Mon7:512.98:073.81:180.21:210.56:276:39Waning Crescent21Mon
22Tue8:513.09:093.92:160.12:250.46:286:37Waning Crescent22Tue
23Wed9:483.310:093.93:130.13:280.26:296:35Waning Crescent23Wed
24Thu10:423.611:083.94:080.04:280.06:306:34Waning Crescent24Thu
25Fri11:353.84:59-0.15:25-0.26:316:32New Moon25Fri
26Sat12:063.812:284.05:49-0.16:21-0.46:326:30New Moon26Sat
27Sun1:043.81:204.26:38-0.17:15-0.46:336:28New Moon27Sun
28Mon1:593.62:104.27:270.08:09-0.46:346:27Waxing Crescent28Mon
29Tue2:523.53:004.28:170.29:02-0.36:356:25Waxing Crescent29Tue
30Wed3:453.33:514.09:070.39:57-0.16:366:23Waxing Crescent30Wed
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 11:22 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 7% 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 Waxing Crescent (7% 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