Tides Today & Tomorrow in Nantucket, MA

TIDE TIMES for Friday, July 3, 2026
The tide is currently falling in Nantucket, MA.
Next low tide : in 4h 03m at 9:01 pm (0.8 ft)
Next high tide (tomorrow) : 3:33 am (3.4 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 5:12 am
Moon phase : Waning Gibbous (88% illuminated)
Tide Station Location : Station #8449130
Common Questions About Tides

Nantucket, MA Tides - Dec 2009

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:393.911:282.73:590.44:57-0.26:464:12Full Moon1Tue
2Wed11:294.14:450.35:45-0.46:474:11Full Moon2Wed
3Thu12:192.712:204.25:340.26:35-0.46:484:11Full Moon3Thu
4Fri1:102.81:134.26:260.27:25-0.56:494:11Waning Gibbous4Fri
5Sat2:022.92:074.17:200.18:17-0.46:504:11Waning Gibbous5Sat
6Sun2:563.03:044.08:180.29:11-0.46:514:11Waning Gibbous6Sun
7Mon3:543.14:043.89:210.210:06-0.36:524:11Third Quarter7Mon
8Tue4:523.35:073.510:260.211:00-0.16:534:11Third Quarter8Tue
9Wed5:503.46:113.311:320.211:550.06:544:11Third Quarter9Wed
10Thu6:473.67:163.112:380.26:554:11Third Quarter10Thu
11Fri7:443.78:212.912:500.21:450.16:564:11Waning Crescent11Fri
12Sat8:383.89:222.81:450.32:480.06:564:11Waning Crescent12Sat
13Sun9:283.810:192.72:390.43:43-0.16:574:11Waning Crescent13Sun
14Mon10:163.811:112.73:290.44:31-0.16:584:11New Moon14Mon
15Tue11:033.711:582.64:150.55:16-0.16:594:12New Moon15Tue
16Wed11:463.75:000.55:590.06:594:12New Moon16Wed
17Thu12:402.612:283.65:430.66:390.07:004:12New Moon17Thu
18Fri1:172.61:073.56:260.67:190.17:014:13Waxing Crescent18Fri
19Sat1:542.61:453.47:100.67:580.17:014:13Waxing Crescent19Sat
20Sun2:322.62:253.37:540.78:390.27:024:13Waxing Crescent20Sun
21Mon3:132.73:083.28:410.79:210.27:024:14Waxing Crescent21Mon
22Tue3:562.83:543.09:310.710:020.37:034:14First Quarter22Tue
23Wed4:402.84:442.910:230.710:440.47:034:15First Quarter23Wed
24Thu5:243.05:342.711:150.611:260.57:044:16First Quarter24Thu
25Fri6:083.16:282.612:070.57:044:16First Quarter25Fri
26Sat6:553.27:232.512:090.51:020.47:044:17Waxing Gibbous26Sat
27Sun7:433.48:192.412:560.51:580.27:054:18Waxing Gibbous27Sun
28Mon8:323.69:132.51:470.52:520.07:054:18Waxing Gibbous28Mon
29Tue9:223.810:072.52:390.43:43-0.27:054:19Waxing Gibbous29Tue
30Wed10:144.011:022.63:300.34:34-0.37:054:20Full Moon30Wed
31Thu11:094.111:572.84:220.15:24-0.57:054:21Full Moon31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8449130)

Common Questions About Nantucket, MA Tides

Show All
What time does the tide turn (slack tide) in Nantucket, MA today?

Slack tide in Nantucket, MA is approximately 12:17 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 88% 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 Waning Gibbous (88% 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