Tides Today & Tomorrow in Nantucket, MA

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently falling in Nantucket, MA.
Next low tide : in 2h 19m at 7:12 am (0.3 ft)
Next high tide : 1:47 pm (2.5 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 5:10 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8449130
Common Questions About Tides

Nantucket, MA Tides - Jul 2015

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:332.85:580.05:520.45:108:17Full Moon1Wed
2Thu12:353.91:222.96:43-0.16:400.35:118:17Full Moon2Thu
3Fri1:244.02:093.07:28-0.27:300.25:128:17Full Moon3Fri
4Sat2:134.02:573.28:15-0.38:220.15:128:16Waning Gibbous4Sat
5Sun3:034.03:473.49:04-0.39:170.15:138:16Waning Gibbous5Sun
6Mon3:563.94:403.59:55-0.310:150.15:138:16Waning Gibbous6Mon
7Tue4:533.75:353.710:47-0.311:160.05:148:16Third Quarter7Tue
8Wed5:523.66:313.811:41-0.25:158:15Third Quarter8Wed
9Thu6:533.47:283.912:170.012:35-0.15:158:15Third Quarter9Thu
10Fri7:563.28:264.01:190.01:310.15:168:14Waning Crescent10Fri
11Sat9:003.19:234.02:220.02:290.25:178:14Waning Crescent11Sat
12Sun10:023.010:194.03:250.03:260.35:178:14Waning Crescent12Sun
13Mon11:013.011:124.04:220.04:210.35:188:13Waning Crescent13Mon
14Tue11:573.05:150.05:120.45:198:13New Moon14Tue
15Wed12:033.912:483.06:030.06:010.45:208:12New Moon15Wed
16Thu12:523.81:343.06:490.06:480.55:218:11New Moon16Thu
17Fri1:363.82:153.07:320.17:340.55:218:11New Moon17Fri
18Sat2:183.62:543.08:140.18:200.55:228:10Waxing Crescent18Sat
19Sun2:583.53:323.18:550.29:070.65:238:09Waxing Crescent19Sun
20Mon3:393.44:133.19:370.39:550.65:248:09Waxing Crescent20Mon
21Tue4:233.24:553.210:200.410:440.65:258:08Waxing Crescent21Tue
22Wed5:103.15:403.211:040.511:350.75:268:07First Quarter22Wed
23Thu5:582.96:253.311:480.65:278:06First Quarter23Thu
24Fri6:482.87:113.312:250.712:320.75:278:05First Quarter24Fri
25Sat7:402.78:003.41:160.61:180.75:288:04First Quarter25Sat
26Sun8:342.78:493.52:080.62:060.75:298:03Waxing Gibbous26Sun
27Mon9:272.79:383.63:010.52:570.75:308:03Waxing Gibbous27Mon
28Tue10:192.710:273.83:520.33:470.65:318:02Waxing Gibbous28Tue
29Wed11:092.811:173.94:400.24:370.45:328:01Waxing Gibbous29Wed
30Thu12:003.05:270.05:270.35:337:59Full Moon30Thu
31Fri12:094.012:523.26:15-0.16:180.15:347:58Full Moon31Fri
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 10:29 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 100% 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 Full Moon (100% 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