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 3h 31m 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 2064

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:564.12:492.98:06-0.48:000.35:098:07Waning Gibbous1Sun
2Mon2:463.93:382.88:56-0.28:520.45:088:08Waning Gibbous2Mon
3Tue3:353.74:272.89:46-0.19:450.55:088:09Waning Gibbous3Tue
4Wed4:263.55:172.810:350.110:420.65:088:09Waning Gibbous4Wed
5Thu5:173.36:042.911:240.211:390.65:078:10Third Quarter5Thu
6Fri6:093.16:513.012:100.45:078:11Third Quarter6Fri
7Sat7:012.97:373.112:360.712:550.55:078:11Third Quarter7Sat
8Sun7:552.78:223.11:330.61:400.65:078:12Third Quarter8Sun
9Mon8:502.69:083.22:310.62:270.75:068:12Waning Crescent9Mon
10Tue9:432.59:513.33:250.53:140.85:068:13Waning Crescent10Tue
11Wed10:332.410:343.44:140.43:580.85:068:13Waning Crescent11Wed
12Thu11:222.411:183.54:580.34:390.85:068:14Waning Crescent12Thu
13Fri12:092.45:400.25:200.85:068:14New Moon13Fri
14Sat12:023.612:552.56:210.16:020.75:068:15New Moon14Sat
15Sun12:473.71:392.57:030.06:450.75:068:15New Moon15Sun
16Mon1:323.82:222.67:45-0.17:310.65:068:15New Moon16Mon
17Tue2:173.83:062.78:29-0.18:200.55:068:16Waxing Crescent17Tue
18Wed3:043.83:522.99:14-0.29:130.45:078:16Waxing Crescent18Wed
19Thu3:533.74:413.110:01-0.210:110.35:078:16Waxing Crescent19Thu
20Fri4:483.65:333.310:50-0.111:110.35:078:17First Quarter20Fri
21Sat5:453.46:253.511:40-0.15:078:17First Quarter21Sat
22Sun6:453.37:183.712:130.212:310.05:078:17First Quarter22Sun
23Mon7:473.18:133.91:150.11:240.15:088:17Waxing Gibbous23Mon
24Tue8:523.09:104.02:190.02:200.25:088:17Waxing Gibbous24Tue
25Wed9:552.910:054.13:22-0.13:170.35:088:17Waxing Gibbous25Wed
26Thu10:562.811:014.14:21-0.24:130.35:098:17Waxing Gibbous26Thu
27Fri11:552.811:554.15:16-0.25:060.35:098:17Full Moon27Fri
28Sat12:522.86:09-0.25:580.45:108:17Full Moon28Sat
29Sun12:494.01:432.86:59-0.26:490.45:108:17Full Moon29Sun
30Mon1:393.92:292.97:46-0.17:390.55:118:17Full Moon30Mon
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