Tides Today & Tomorrow in Nantucket, MA

TIDE TIMES for Thursday, July 23, 2026
The tide is currently rising in Nantucket, MA.
Next low tide (tomorrow) : 3:02 am (0.5 ft)
Next high tide : in 5h 59m at 8:37 pm (3.5 ft)
Sunset today : 8:06 pm
Sunrise tomorrow : 5:27 am
Moon phase : Waxing Gibbous (71% illuminated)
Tide Station Location : Station #8449130
Common Questions About Tides

Nantucket, MA Tides - Jun 1986

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:313.19:053.31:530.42:150.35:098:06Waning Crescent1Sun
2Mon9:322.99:533.42:590.43:060.55:088:07Waning Crescent2Mon
3Tue10:282.710:363.43:580.33:530.65:088:08Waning Crescent3Tue
4Wed11:202.611:163.44:480.24:360.75:088:08Waning Crescent4Wed
5Thu12:082.65:320.25:160.75:078:09New Moon5Thu
6Fri12:512.56:130.15:560.85:078:10New Moon6Fri
7Sat12:353.51:302.56:520.16:360.85:078:10New Moon7Sat
8Sun1:153.52:072.57:310.17:150.85:078:11New Moon8Sun
9Mon1:543.52:452.58:090.17:550.85:068:12Waxing Crescent9Mon
10Tue2:333.53:242.58:490.18:360.95:068:12Waxing Crescent10Tue
11Wed3:133.44:052.59:300.29:190.95:068:13Waxing Crescent11Wed
12Thu3:553.44:492.610:130.210:070.85:068:13Waxing Crescent12Thu
13Fri4:413.35:332.710:560.210:590.85:068:14First Quarter13Fri
14Sat5:303.36:172.911:390.211:530.65:068:14First Quarter14Sat
15Sun6:213.27:033.112:230.25:068:15First Quarter15Sun
16Mon7:163.07:503.412:490.51:100.25:068:15First Quarter16Mon
17Tue8:153.08:403.61:490.32:000.25:068:15Waxing Gibbous17Tue
18Wed9:162.99:323.92:490.12:530.25:068:16Waxing Gibbous18Wed
19Thu10:152.910:254.13:49-0.23:470.25:068:16Waxing Gibbous19Thu
20Fri11:152.911:204.34:45-0.44:400.25:078:16Full Moon20Fri
21Sat12:162.95:41-0.55:340.15:078:16Full Moon21Sat
22Sun12:184.41:152.96:36-0.66:290.15:078:17Full Moon22Sun
23Mon1:174.42:113.07:30-0.67:250.15:078:17Full Moon23Mon
24Tue2:144.33:063.08:24-0.58:210.25:088:17Waning Gibbous24Tue
25Wed3:094.24:013.19:18-0.49:200.25:088:17Waning Gibbous25Wed
26Thu4:064.04:573.210:12-0.210:210.35:088:17Waning Gibbous26Thu
27Fri5:043.75:513.211:060.011:240.45:098:17Third Quarter27Fri
28Sat6:023.46:443.311:570.25:098:17Third Quarter28Sat
29Sun7:013.17:353.412:260.412:460.45:098:17Third Quarter29Sun
30Mon8:002.98:253.41:280.41:350.65:108:17Third Quarter30Mon
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 11:49 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 71% 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 Waxing Gibbous (71% 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