Tides Today & Tomorrow in Nantucket, MA

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently rising in Nantucket, MA.
Next low tide : 12:59 pm (0.7 ft)
Next high tide : in 6h 19m at 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 - Jun 2063

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:563.94:492.910:08-0.310:110.35:098:07Waxing Crescent1Fri
2Sat4:543.85:453.111:02-0.311:140.35:098:07First Quarter2Sat
3Sun5:553.66:413.311:56-0.25:088:08First Quarter3Sun
4Mon6:573.47:373.512:180.212:49-0.15:088:09First Quarter4Mon
5Tue8:003.28:333.61:230.21:420.05:078:10Waxing Gibbous5Tue
6Wed9:053.09:273.82:290.12:370.25:078:10Waxing Gibbous6Wed
7Thu10:082.910:193.83:330.03:320.35:078:11Waxing Gibbous7Thu
8Fri11:072.811:093.94:31-0.14:230.45:078:11Waxing Gibbous8Fri
9Sat12:042.85:23-0.25:120.55:078:12Full Moon9Sat
10Sun12:572.76:12-0.25:590.55:068:13Full Moon10Sun
11Mon12:463.81:442.76:59-0.16:450.65:068:13Full Moon11Mon
12Tue1:323.72:262.67:430.07:310.65:068:14Full Moon12Tue
13Wed2:143.73:062.68:260.08:170.75:068:14Waning Gibbous13Wed
14Thu2:563.53:462.79:090.19:040.75:068:14Waning Gibbous14Thu
15Fri3:383.44:282.79:530.29:530.85:068:15Waning Gibbous15Fri
16Sat4:223.35:112.810:360.310:450.85:068:15Waning Gibbous16Sat
17Sun5:093.15:552.911:190.411:380.85:068:16Third Quarter17Sun
18Mon5:583.06:393.012:010.55:068:16Third Quarter18Mon
19Tue6:492.87:233.112:300.712:430.65:078:16Third Quarter19Tue
20Wed7:412.78:083.21:220.71:250.75:078:16Third Quarter20Wed
21Thu8:362.68:533.42:160.62:100.75:078:17Waning Crescent21Thu
22Fri9:312.59:393.53:100.42:570.85:078:17Waning Crescent22Fri
23Sat10:232.510:263.74:010.33:450.75:088:17Waning Crescent23Sat
24Sun11:152.511:153.94:500.14:330.65:088:17Waning Crescent24Sun
25Mon12:072.55:38-0.15:210.55:088:17New Moon25Mon
26Tue12:074.01:002.66:26-0.26:120.45:098:17New Moon26Tue
27Wed1:014.11:522.87:16-0.37:050.35:098:17New Moon27Wed
28Thu1:544.22:432.98:05-0.48:010.25:098:17Waxing Crescent28Thu
29Fri2:484.23:353.18:55-0.48:590.25:108:17Waxing Crescent29Fri
30Sat3:434.04:293.39:47-0.310:000.25:108:17Waxing Crescent30Sat
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 10:16 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