Tides Today & Tomorrow in Nantucket, MA

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently rising in Nantucket, MA.
Next low tide (tomorrow) : 2:02 am (0.5 ft)
Next high tide : in 3h 11m at 7:46 pm (3.5 ft)
Sunset today : 8:07 pm
Sunrise tomorrow : 5:26 am
Moon phase : First Quarter (62% illuminated)
Tide Station Location : Station #8449130
Common Questions About Tides

Nantucket, MA Tides - Apr 1988

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:422.811:523.05:070.25:200.45:226:05Full Moon1Fri
2Sat12:232.85:470.15:540.45:206:06Full Moon2Sat
3Sun12:273.12:032.77:260.07:290.46:197:07Full Moon3Sun
4Mon2:023.22:432.78:06-0.18:050.56:177:08Waning Gibbous4Mon
5Tue2:393.33:242.68:48-0.18:440.56:157:09Waning Gibbous5Tue
6Wed3:193.44:092.59:34-0.19:280.56:147:10Waning Gibbous6Wed
7Thu4:043.44:582.410:24-0.110:170.46:127:12Waning Gibbous7Thu
8Fri4:563.55:522.411:18-0.111:120.46:117:13Third Quarter8Fri
9Sat5:543.56:492.512:13-0.16:097:14Third Quarter9Sat
10Sun6:553.57:492.612:110.41:11-0.16:077:15Third Quarter10Sun
11Mon7:593.58:492.81:140.32:10-0.16:067:16Waning Crescent11Mon
12Tue9:043.59:463.02:200.13:08-0.26:047:17Waning Crescent12Tue
13Wed10:063.510:403.33:260.04:02-0.26:037:18Waning Crescent13Wed
14Thu11:063.411:323.54:27-0.34:53-0.26:017:19Waning Crescent14Thu
15Fri12:053.35:25-0.55:42-0.25:597:20New Moon15Fri
16Sat12:233.71:023.26:19-0.66:30-0.15:587:21New Moon16Sat
17Sun1:123.91:563.17:12-0.77:180.05:567:22New Moon17Sun
18Mon2:003.92:463.08:04-0.68:050.15:557:23Waxing Crescent18Mon
19Tue2:473.83:362.88:54-0.58:530.35:537:24Waxing Crescent19Tue
20Wed3:353.74:262.79:46-0.39:440.45:527:25Waxing Crescent20Wed
21Thu4:253.55:182.610:39-0.110:370.55:507:27Waxing Crescent21Thu
22Fri5:183.46:092.511:330.111:320.65:497:28First Quarter22Fri
23Sat6:123.27:012.512:250.25:477:29First Quarter23Sat
24Sun7:073.17:532.512:280.71:170.35:467:30First Quarter24Sun
25Mon8:022.98:442.61:260.72:090.45:457:31First Quarter25Mon
26Tue8:572.89:312.72:260.72:590.55:437:32Waxing Gibbous26Tue
27Wed9:492.810:132.93:230.63:440.55:427:33Waxing Gibbous27Wed
28Thu10:372.710:533.04:140.54:230.55:407:34Waxing Gibbous28Thu
29Fri11:252.711:313.14:580.35:000.65:397:35Waxing Gibbous29Fri
30Sat12:112.65:400.25:370.65:387:36Full Moon30Sat
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 10:54 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 transitional phase. Tonight's moon is 62% 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 First Quarter (62% 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