Tides Today & Tomorrow in Nantucket, MA

TIDE TIMES for Sunday, July 12, 2026
The tide is currently falling in Nantucket, MA.
Next low tide : in 2h 00m at 4:17 pm (0.2 ft)
Next high tide : 11:04 pm (4.3 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 5:18 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #8449130
Common Questions About Tides

Nantucket, MA Tides - Jun 2055

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:103.66:003.011:18-0.311:300.35:098:07First Quarter1Tue
2Wed6:083.66:543.212:10-0.25:098:07First Quarter2Wed
3Thu7:083.57:503.412:310.21:04-0.25:088:08First Quarter3Thu
4Fri8:113.48:473.61:330.12:00-0.25:088:09Waxing Gibbous4Fri
5Sat9:143.39:423.82:380.02:56-0.15:078:09Waxing Gibbous5Sat
6Sun10:163.210:363.93:40-0.23:51-0.15:078:10Waxing Gibbous6Sun
7Mon11:163.211:294.04:38-0.34:440.05:078:11Waxing Gibbous7Mon
8Tue12:153.15:33-0.45:350.15:078:11Full Moon8Tue
9Wed12:224.11:113.16:25-0.56:250.15:078:12Full Moon9Wed
10Thu1:134.02:033.07:16-0.47:150.25:068:12Full Moon10Thu
11Fri2:014.02:513.08:05-0.38:050.35:068:13Waning Gibbous11Fri
12Sat2:483.83:383.08:53-0.28:540.45:068:13Waning Gibbous12Sat
13Sun3:343.74:242.99:41-0.19:450.55:068:14Waning Gibbous13Sun
14Mon4:223.55:122.910:300.110:390.65:068:14Waning Gibbous14Mon
15Tue5:113.35:582.911:180.211:330.75:068:15Third Quarter15Tue
16Wed6:013.16:453.012:050.35:068:15Third Quarter16Wed
17Thu6:513.07:313.112:270.712:510.45:068:16Third Quarter17Thu
18Fri7:432.88:183.11:210.71:370.55:068:16Third Quarter18Fri
19Sat8:372.79:053.22:170.62:240.65:078:16Waning Crescent19Sat
20Sun9:302.79:493.33:110.63:110.75:078:16Waning Crescent20Sun
21Mon10:212.610:333.44:000.43:550.75:078:17Waning Crescent21Mon
22Tue11:102.611:163.64:450.34:370.75:078:17Waning Crescent22Tue
23Wed11:582.65:280.25:190.65:078:17New Moon23Wed
24Thu12:003.712:462.76:110.06:020.65:088:17New Moon24Thu
25Fri12:463.81:332.86:55-0.16:470.55:088:17New Moon25Fri
26Sat1:323.92:182.97:39-0.27:340.45:098:17New Moon26Sat
27Sun2:193.93:053.08:25-0.38:250.35:098:17Waxing Crescent27Sun
28Mon3:083.93:543.19:13-0.39:190.35:098:17Waxing Crescent28Mon
29Tue4:003.94:463.310:04-0.310:170.25:108:17Waxing Crescent29Tue
30Wed4:563.85:413.410:56-0.311:170.25:108:17First Quarter30Wed
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 7:40 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 spring phase. Tonight's moon is 5% 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 near their weekly maximum.

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 Waning Crescent (5% illuminated). This places Nantucket, MA in a spring tide cycle, so tidal ranges are near their weekly maximum 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