Tides Today & Tomorrow in Nantucket, MA

TIDE TIMES for Saturday, July 25, 2026
The tide is currently rising in Nantucket, MA.
Next low tide : 3:34 pm (0.9 ft)
Next high tide : in 4h 06m at 10:20 am (2.5 ft)
Sunset today : 8:04 pm
Sunrise tomorrow : 5:29 am
Moon phase : Waxing Gibbous (86% illuminated)
Tide Station Location : Station #8449130
Common Questions About Tides

Nantucket, MA Tides - May 1983

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:393.54:322.79:52-0.19:530.65:387:36Waning Gibbous1Sun
2Mon4:253.35:192.610:420.010:430.75:367:37Waning Gibbous2Mon
3Tue5:143.26:082.511:320.111:350.75:357:39Third Quarter3Tue
4Wed6:053.16:572.512:210.25:347:40Third Quarter4Wed
5Thu6:563.07:472.612:270.81:110.35:327:41Third Quarter5Thu
6Fri7:502.98:372.71:210.82:000.45:317:42Third Quarter6Fri
7Sat8:442.99:242.82:170.72:490.45:307:43Waning Crescent7Sat
8Sun9:362.910:082.93:110.63:340.45:297:44Waning Crescent8Sun
9Mon10:262.810:493.14:010.44:150.45:287:45Waning Crescent9Mon
10Tue11:152.811:303.34:470.24:550.45:277:46Waning Crescent10Tue
11Wed12:042.85:320.05:350.45:257:47New Moon11Wed
12Thu12:123.512:532.86:17-0.26:170.35:247:48New Moon12Thu
13Fri12:563.71:412.87:03-0.37:000.35:237:49New Moon13Fri
14Sat1:413.82:292.87:50-0.57:470.25:227:50Waxing Crescent14Sat
15Sun2:293.93:182.88:40-0.58:370.25:217:51Waxing Crescent15Sun
16Mon3:194.04:112.89:32-0.59:310.25:207:52Waxing Crescent16Mon
17Tue4:153.95:092.910:27-0.510:300.25:197:53Waxing Crescent17Tue
18Wed5:153.86:072.911:24-0.411:320.25:197:54First Quarter18Wed
19Thu6:163.77:073.012:21-0.35:187:55First Quarter19Thu
20Fri7:193.68:063.212:350.21:18-0.25:177:56First Quarter20Fri
21Sat8:243.49:053.31:400.22:15-0.15:167:57Waxing Gibbous21Sat
22Sun9:283.39:593.52:470.13:110.05:157:58Waxing Gibbous22Sun
23Mon10:293.210:493.63:500.04:040.15:147:59Waxing Gibbous23Mon
24Tue11:273.111:373.74:47-0.14:520.25:147:59Waxing Gibbous24Tue
25Wed12:233.05:39-0.25:380.35:138:00Full Moon25Wed
26Thu12:233.71:142.96:27-0.26:230.45:128:01Full Moon26Thu
27Fri1:073.71:592.87:13-0.27:070.55:128:02Full Moon27Fri
28Sat1:493.62:412.77:57-0.27:510.65:118:03Full Moon28Sat
29Sun2:293.63:212.78:40-0.18:350.65:118:04Waning Gibbous29Sun
30Mon3:093.54:022.69:240.09:210.75:108:05Waning Gibbous30Mon
31Tue3:523.44:462.610:100.110:090.85:108:05Waning Gibbous31Tue
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 12:57 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 86% 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 Gibbous (86% 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