Tides Today & Tomorrow in Nantucket, MA

TIDE TIMES for Friday, July 17, 2026
The tide is currently rising in Nantucket, MA.
Next low tide : 8:52 am (-0.2 ft)
Next high tide : in 2h 34m at 2:54 am (4.1 ft)
Sunset today : 8:10 pm
Sunrise tomorrow : 5:22 am
Moon phase : Waxing Crescent (14% illuminated)
Tide Station Location : Station #8449130
Common Questions About Tides

Nantucket, MA Tides - Apr 2060

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:453.61:173.56:36-0.76:56-0.46:217:06New Moon1Thu
2Fri1:353.82:123.47:31-0.87:45-0.36:197:07Waxing Crescent2Fri
3Sat2:254.03:063.38:26-0.88:35-0.26:187:08Waxing Crescent3Sat
4Sun3:174.04:023.19:22-0.79:270.06:167:09Waxing Crescent4Sun
5Mon4:113.95:012.910:19-0.610:230.16:157:10Waxing Crescent5Mon
6Tue5:093.86:012.711:19-0.411:210.36:137:11First Quarter6Tue
7Wed6:093.67:022.612:19-0.26:117:12First Quarter7Wed
8Thu7:113.48:052.612:210.41:200.06:107:13First Quarter8Thu
9Fri8:153.39:062.61:230.52:220.26:087:14First Quarter9Fri
10Sat9:163.210:002.72:270.53:210.26:067:15Waxing Gibbous10Sat
11Sun10:133.110:472.73:300.54:110.36:057:16Waxing Gibbous11Sun
12Mon11:033.011:272.94:250.44:520.36:037:18Waxing Gibbous12Mon
13Tue11:492.95:130.35:290.46:027:19Waxing Gibbous13Tue
14Wed12:043.012:322.85:560.26:040.46:007:20Full Moon14Wed
15Thu12:393.11:132.76:360.16:400.55:597:21Full Moon15Thu
16Fri1:133.11:512.77:150.17:150.55:577:22Full Moon16Fri
17Sat1:473.22:292.67:530.07:510.65:567:23Full Moon17Sat
18Sun2:223.23:082.68:320.08:280.65:547:24Waning Gibbous18Sun
19Mon2:593.33:492.59:130.09:060.75:537:25Waning Gibbous19Mon
20Tue3:383.34:332.49:570.09:480.75:517:26Waning Gibbous20Tue
21Wed4:223.35:202.410:440.110:350.75:507:27Waning Gibbous21Wed
22Thu5:113.36:102.411:340.111:270.65:487:28Third Quarter22Thu
23Fri6:053.37:022.412:250.15:477:29Third Quarter23Fri
24Sat7:023.37:562.612:230.61:180.05:457:30Third Quarter24Sat
25Sun8:023.38:502.81:230.42:130.05:447:32Waning Crescent25Sun
26Mon9:033.49:433.12:270.23:07-0.15:427:33Waning Crescent26Mon
27Tue10:043.410:343.43:300.03:59-0.15:417:34Waning Crescent27Tue
28Wed11:033.311:253.74:29-0.34:49-0.25:407:35Waning Crescent28Wed
29Thu12:023.35:26-0.65:39-0.25:387:36New Moon29Thu
30Fri12:183.91:013.26:21-0.76:29-0.25:377:37New Moon30Fri
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 5:53 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 spring phase. Tonight's moon is 14% 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 Waxing Crescent (14% 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