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 5h 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 - Jun 1988

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:033.82:002.67:21-0.27:070.55:098:07Full Moon1Wed
2Thu1:513.92:462.68:07-0.37:560.45:088:07Waning Gibbous2Thu
3Fri2:404.03:352.78:56-0.38:490.35:088:08Waning Gibbous3Fri
4Sat3:333.94:282.89:47-0.39:470.35:088:09Waning Gibbous4Sat
5Sun4:293.85:233.010:40-0.310:490.35:078:09Third Quarter5Sun
6Mon5:283.76:193.211:33-0.211:520.25:078:10Third Quarter6Mon
7Tue6:293.57:143.412:26-0.15:078:11Third Quarter7Tue
8Wed7:323.38:103.612:560.21:190.05:078:11Third Quarter8Wed
9Thu8:363.19:053.82:010.12:140.15:068:12Waning Crescent9Thu
10Fri9:403.09:583.93:060.03:090.25:068:12Waning Crescent10Fri
11Sat10:412.910:493.94:07-0.14:020.35:068:13Waning Crescent11Sat
12Sun11:402.811:393.95:01-0.24:520.45:068:13New Moon12Sun
13Mon12:362.75:52-0.25:400.55:068:14New Moon13Mon
14Tue12:293.91:262.76:41-0.26:280.55:068:14New Moon14Tue
15Wed1:173.82:102.77:27-0.17:150.65:068:15New Moon15Wed
16Thu2:013.72:512.78:110.08:010.65:068:15Waxing Crescent16Thu
17Fri2:443.63:312.78:550.18:480.75:068:15Waxing Crescent17Fri
18Sat3:263.54:132.79:380.29:370.75:068:16Waxing Crescent18Sat
19Sun4:103.34:562.810:220.310:290.85:068:16Waxing Crescent19Sun
20Mon4:563.25:402.911:060.411:220.85:078:16First Quarter20Mon
21Tue5:453.06:243.011:480.55:078:17First Quarter21Tue
22Wed6:352.87:073.112:140.812:300.65:078:17First Quarter22Wed
23Thu7:272.77:523.21:070.71:120.75:078:17First Quarter23Thu
24Fri8:222.68:373.32:010.61:570.85:088:17Waxing Gibbous24Fri
25Sat9:172.59:233.52:550.52:430.85:088:17Waxing Gibbous25Sat
26Sun10:092.510:093.63:460.43:300.85:088:17Waxing Gibbous26Sun
27Mon11:002.510:573.84:350.24:170.75:098:17Waxing Gibbous27Mon
28Tue11:522.511:473.95:220.15:050.65:098:17Full Moon28Tue
29Wed12:442.66:10-0.15:540.55:108:17Full Moon29Wed
30Thu12:404.11:352.76:58-0.26:460.35:108:17Full Moon30Thu
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