Tides Today & Tomorrow in Nantucket, MA

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently falling in Nantucket, MA.
Next low tide : in 57m at 1:03 am (0.4 ft)
Next high tide : 7:34 am (2.8 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 - May 2063

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:293.73:202.68:44-0.38:340.45:377:37Waxing Crescent1Tue
2Wed3:163.74:092.69:33-0.39:250.45:357:38Waxing Crescent2Wed
3Thu4:093.75:032.610:26-0.310:220.45:347:39Waxing Crescent3Thu
4Fri5:073.76:002.711:21-0.211:230.35:337:40First Quarter4Fri
5Sat6:073.66:582.812:17-0.25:327:41First Quarter5Sat
6Sun7:093.57:563.012:260.31:12-0.25:317:42First Quarter6Sun
7Mon8:143.48:543.31:320.22:08-0.15:297:43Waxing Gibbous7Mon
8Tue9:183.39:483.52:390.13:040.05:287:45Waxing Gibbous8Tue
9Wed10:203.210:403.73:43-0.13:570.05:277:46Waxing Gibbous9Wed
10Thu11:193.111:303.84:41-0.34:470.15:267:47Waxing Gibbous10Thu
11Fri12:173.05:36-0.45:350.25:257:48Full Moon11Fri
12Sat12:193.81:122.96:27-0.46:230.35:247:49Full Moon12Sat
13Sun1:073.82:012.87:16-0.47:100.45:237:50Full Moon13Sun
14Mon1:533.82:472.78:03-0.37:560.45:227:51Waning Gibbous14Mon
15Tue2:373.73:312.78:50-0.28:430.55:217:52Waning Gibbous15Tue
16Wed3:223.64:162.69:370.09:320.65:207:53Waning Gibbous16Wed
17Thu4:083.45:022.610:260.110:240.75:197:54Waning Gibbous17Thu
18Fri4:573.35:502.611:150.211:180.75:187:55Third Quarter18Fri
19Sat5:473.16:372.612:020.35:177:56Third Quarter19Sat
20Sun6:383.07:242.712:120.812:470.45:167:56Third Quarter20Sun
21Mon7:312.88:112.91:070.71:330.55:167:57Third Quarter21Mon
22Tue8:252.78:573.02:030.72:180.65:157:58Waning Crescent22Tue
23Wed9:192.69:403.12:590.63:030.65:147:59Waning Crescent23Wed
24Thu10:112.610:213.33:500.43:460.75:138:00Waning Crescent24Thu
25Fri11:002.511:033.54:360.24:270.75:138:01Waning Crescent25Fri
26Sat11:502.511:463.65:200.15:080.65:128:02New Moon26Sat
27Sun12:392.56:05-0.15:510.65:128:03New Moon27Sun
28Mon12:333.81:272.66:50-0.26:360.55:118:04New Moon28Mon
29Tue1:213.92:142.67:37-0.37:240.45:108:04New Moon29Tue
30Wed2:104.03:032.78:25-0.48:160.35:108:05Waxing Crescent30Wed
31Thu3:024.03:542.89:16-0.49:110.35:098:06Waxing Crescent31Thu
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 4:18 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 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