Tides Today & Tomorrow in Nantucket, MA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently falling in Nantucket, MA.
Next low tide : in 3h 08m at 11:11 pm (0.3 ft)
Next high tide (tomorrow) : 5:35 am (3.0 ft)
Sunset today : 7:54 pm
Sunrise tomorrow : 5:38 am
Moon phase : Third Quarter (66% illuminated)
Tide Station Location : Station #8449130
Common Questions About Tides

Nantucket, MA Tides - Mar 1968

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:283.01:453.17:060.07:280.26:145:31Waxing Crescent1Fri
2Sat2:033.12:252.97:520.08:070.36:125:32Waxing Crescent2Sat
3Sun2:403.13:072.78:380.18:470.46:115:33Waxing Crescent3Sun
4Mon3:193.13:532.69:260.19:300.56:095:34Waxing Crescent4Mon
5Tue4:033.14:412.410:160.210:150.66:075:35First Quarter5Tue
6Wed4:493.05:312.311:060.311:020.76:065:36First Quarter6Wed
7Thu5:393.06:232.211:580.311:500.86:045:38First Quarter7Thu
8Fri6:323.07:192.212:530.46:035:39First Quarter8Fri
9Sat7:273.18:132.212:410.81:490.36:015:40Waxing Gibbous9Sat
10Sun8:213.29:042.31:350.72:410.35:595:41Waxing Gibbous10Sun
11Mon9:123.39:512.42:290.63:270.25:585:42Waxing Gibbous11Mon
12Tue10:013.410:362.63:200.44:090.05:565:43Waxing Gibbous12Tue
13Wed10:513.411:212.94:100.24:50-0.15:545:44Full Moon13Wed
14Thu11:413.45:00-0.15:32-0.25:535:45Full Moon14Thu
15Fri12:063.212:313.45:50-0.36:15-0.25:515:47Full Moon15Fri
16Sat12:503.41:213.36:42-0.57:00-0.25:495:48Waning Gibbous16Sat
17Sun1:363.72:123.27:34-0.67:47-0.25:485:49Waning Gibbous17Sun
18Mon2:253.83:063.08:29-0.68:37-0.15:465:50Waning Gibbous18Mon
19Tue3:183.84:052.99:27-0.59:310.05:445:51Waning Gibbous19Tue
20Wed4:163.85:062.710:27-0.410:290.15:435:52Third Quarter20Wed
21Thu5:173.76:092.611:28-0.311:290.25:415:53Third Quarter21Thu
22Fri6:213.67:152.612:32-0.15:395:54Third Quarter22Fri
23Sat7:273.58:212.612:320.31:380.05:375:55Waning Crescent23Sat
24Sun8:323.59:202.71:380.32:400.05:365:56Waning Crescent24Sun
25Mon9:323.410:132.82:420.33:340.15:345:57Waning Crescent25Mon
26Tue10:273.311:002.93:390.24:200.15:325:59Waning Crescent26Tue
27Wed11:183.211:423.04:310.15:000.15:316:00New Moon27Wed
28Thu12:043.05:190.05:390.25:296:01New Moon28Thu
29Fri12:193.112:452.96:030.06:160.35:276:02New Moon29Fri
30Sat12:533.21:242.86:460.06:530.45:266:03New Moon30Sat
31Sun1:263.22:012.77:270.07:300.55:246:04Waxing Crescent31Sun
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 2:23 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 66% 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 (66% 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