Tides Today & Tomorrow in Nantucket, MA

TIDE TIMES for Wednesday, August 12, 2026
The tide is currently rising in Nantucket, MA.
Next low tide : 6:00 pm (0.1 ft)
Next high tide : in 6h 02m at 12:36 pm (3.2 ft)
Sunset today : 7:43 pm
Sunrise tomorrow : 5:46 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #8449130
Common Questions About Tides

Nantucket, MA Tides - Nov 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:074.111:523.24:240.25:11-0.46:114:36Full Moon1Sat
2Sun11:564.15:110.36:01-0.46:134:34Full Moon2Sun
3Mon12:443.112:434.15:580.46:50-0.36:144:33Full Moon3Mon
4Tue1:333.01:294.06:450.57:38-0.26:154:32Waning Gibbous4Tue
5Wed2:192.92:153.87:320.68:270.06:164:31Waning Gibbous5Wed
6Thu3:072.83:033.78:220.79:180.26:174:30Waning Gibbous6Thu
7Fri3:562.73:533.59:140.810:100.36:194:29Third Quarter7Fri
8Sat4:462.74:463.310:100.911:000.46:204:27Third Quarter8Sat
9Sun5:362.75:383.211:060.911:480.56:214:26Third Quarter9Sun
10Mon6:252.86:323.012:030.96:224:25Third Quarter10Mon
11Tue7:142.97:262.912:360.61:020.96:244:24Third Quarter11Tue
12Wed7:593.08:192.81:230.61:590.76:254:24Waning Crescent12Wed
13Thu8:423.29:092.82:080.72:500.66:264:23Waning Crescent13Thu
14Fri9:223.39:572.72:500.73:350.46:274:22Waning Crescent14Fri
15Sat10:013.510:442.73:290.74:160.26:284:21New Moon15Sat
16Sun10:413.611:302.74:070.74:580.16:304:20New Moon16Sun
17Mon11:243.84:460.65:400.06:314:19New Moon17Mon
18Tue12:162.712:083.95:280.66:24-0.16:324:18New Moon18Tue
19Wed1:012.712:544.06:120.57:11-0.26:334:18Waxing Crescent19Wed
20Thu1:472.71:424.06:590.57:59-0.26:344:17Waxing Crescent20Thu
21Fri2:372.72:344.07:510.48:51-0.26:354:16Waxing Crescent21Fri
22Sat3:312.83:313.98:490.49:45-0.26:374:16Waxing Crescent22Sat
23Sun4:282.94:323.79:510.410:40-0.16:384:15First Quarter23Sun
24Mon5:263.15:353.510:560.411:34-0.16:394:15First Quarter24Mon
25Tue6:243.36:393.412:010.36:404:14First Quarter25Tue
26Wed7:213.57:443.212:290.01:080.26:414:14Waxing Gibbous26Wed
27Thu8:163.78:483.11:250.12:140.06:424:13Waxing Gibbous27Thu
28Fri9:083.99:483.02:200.23:14-0.16:434:13Waxing Gibbous28Fri
29Sat9:584.010:452.93:120.34:08-0.26:444:12Full Moon29Sat
30Sun10:474.011:402.84:010.34:58-0.36:454:12Full Moon30Sun
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 3:18 pm — 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 0% 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 New Moon (0% 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