Tides Today & Tomorrow in Nantucket, MA

TIDE TIMES for Friday, August 7, 2026
The tide is currently falling in Nantucket, MA.
Next low tide (tomorrow) : in 4h 33m at 2:07 am (0.1 ft)
Next high tide (tomorrow) : 8:35 am (2.8 ft)
Sunset today : 7:50 pm
Sunrise tomorrow : 5:41 am
Moon phase : Third Quarter (32% illuminated)
Tide Station Location : Station #8449130
Common Questions About Tides

Nantucket, MA Tides - Jul 1961

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:464.33:333.48:50-0.58:590.05:108:17Waning Gibbous1Sat
2Sun3:424.14:293.59:43-0.59:580.05:118:17Waning Gibbous2Sun
3Mon4:414.05:263.610:38-0.411:010.15:118:17Third Quarter3Mon
4Tue5:413.76:233.711:33-0.25:128:16Third Quarter4Tue
5Wed6:423.57:203.712:030.112:28-0.15:138:16Third Quarter5Wed
6Thu7:453.38:173.81:060.11:220.15:138:16Third Quarter6Thu
7Fri8:483.19:133.82:100.22:180.35:148:16Waning Crescent7Fri
8Sat9:503.010:063.83:130.23:140.45:148:15Waning Crescent8Sat
9Sun10:472.910:553.84:110.14:060.55:158:15Waning Crescent9Sun
10Mon11:412.811:423.75:010.14:540.65:168:14Waning Crescent10Mon
11Tue12:302.85:470.15:390.65:178:14New Moon11Tue
12Wed12:273.71:122.86:300.16:230.65:178:13New Moon12Wed
13Thu1:083.61:512.87:100.27:060.75:188:13New Moon13Thu
14Fri1:483.62:272.97:500.27:480.75:198:12New Moon14Fri
15Sat2:263.53:042.98:290.28:310.75:208:12Waxing Crescent15Sat
16Sun3:053.43:433.09:080.39:150.75:208:11Waxing Crescent16Sun
17Mon3:463.34:243.09:490.310:020.75:218:11Waxing Crescent17Mon
18Tue4:303.25:063.110:310.410:500.75:228:10Waxing Crescent18Tue
19Wed5:163.15:503.211:130.411:390.75:238:09First Quarter19Wed
20Thu6:053.06:343.311:560.55:248:08First Quarter20Thu
21Fri6:552.97:203.412:290.612:400.55:258:08First Quarter21Fri
22Sat7:482.88:093.61:220.51:270.55:268:07First Quarter22Sat
23Sun8:442.89:013.72:170.42:190.55:268:06Waxing Gibbous23Sun
24Mon9:402.89:533.93:130.23:130.45:278:05Waxing Gibbous24Mon
25Tue10:362.910:474.14:080.04:070.35:288:04Waxing Gibbous25Tue
26Wed11:313.011:424.25:00-0.25:000.15:298:03Full Moon26Wed
27Thu12:283.25:52-0.35:550.05:308:02Full Moon27Thu
28Fri12:394.31:243.36:44-0.46:50-0.15:318:01Full Moon28Fri
29Sat1:364.42:183.57:36-0.57:46-0.25:328:00Waning Gibbous29Sat
30Sun2:314.33:113.78:28-0.58:43-0.15:337:59Waning Gibbous30Sun
31Mon3:274.14:053.89:20-0.49:42-0.15:347:58Waning Gibbous31Mon
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 5:21 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 transitional phase. Tonight's moon is 32% 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 shifting between spring and neap.

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 Third Quarter (32% illuminated). This places Nantucket, MA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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