Tides Today & Tomorrow in Nantucket, MA

TIDE TIMES for Friday, August 7, 2026
The tide is currently rising in Nantucket, MA.
Next low tide : 1:01 pm (0.5 ft)
Next high tide : in 3h 21m at 7:31 am (2.8 ft)
Sunset today : 7:50 pm
Sunrise tomorrow : 5:41 am
Moon phase : Third Quarter (32% illuminated)
Tide Station Location : Station #8449130
Common Questions About Tides

Nantucket, MA Tides - Jan 1963

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:083.04:133.59:380.210:16-0.37:064:21First Quarter1Tue
2Wed5:013.25:133.410:390.111:08-0.27:064:22First Quarter2Wed
3Thu5:563.46:143.211:410.07:064:23First Quarter3Thu
4Fri6:533.67:193.012:02-0.212:440.07:064:24First Quarter4Fri
5Sat7:503.78:233.012:58-0.11:49-0.27:064:25Waxing Gibbous5Sat
6Sun8:463.99:252.91:550.02:50-0.37:064:25Waxing Gibbous6Sun
7Mon9:414.010:242.92:520.03:47-0.47:064:26Waxing Gibbous7Mon
8Tue10:344.011:222.83:450.14:40-0.47:064:27Full Moon8Tue
9Wed11:274.04:360.15:31-0.47:054:28Full Moon9Wed
10Thu12:152.812:173.95:270.16:19-0.47:054:29Full Moon10Thu
11Fri1:032.81:043.86:160.27:06-0.37:054:31Full Moon11Fri
12Sat1:482.81:493.67:040.37:51-0.27:054:32Waning Gibbous12Sat
13Sun2:312.82:333.47:530.38:36-0.17:044:33Waning Gibbous13Sun
14Mon3:142.83:193.28:440.49:210.17:044:34Waning Gibbous14Mon
15Tue3:592.84:073.09:370.510:070.27:044:35Waning Gibbous15Tue
16Wed4:442.94:572.810:310.510:520.37:034:36Third Quarter16Wed
17Thu5:302.95:482.711:250.511:380.47:034:37Third Quarter17Thu
18Fri6:173.06:412.512:190.57:024:38Third Quarter18Fri
19Sat7:053.17:372.412:240.51:150.57:024:40Third Quarter19Sat
20Sun7:533.28:312.41:120.62:090.47:014:41Waning Crescent20Sun
21Mon8:413.39:222.42:010.62:590.37:004:42Waning Crescent21Mon
22Tue9:273.410:102.42:480.63:450.17:004:43Waning Crescent22Tue
23Wed10:123.510:582.53:320.54:280.06:594:44Waning Crescent23Wed
24Thu10:593.611:452.64:160.45:11-0.16:584:46New Moon24Thu
25Fri11:463.75:020.25:54-0.36:584:47New Moon25Fri
26Sat12:312.712:333.85:490.16:38-0.46:574:48New Moon26Sat
27Sun1:162.81:213.86:380.07:23-0.46:564:49Waxing Crescent27Sun
28Mon2:023.02:103.87:30-0.18:10-0.56:554:50Waxing Crescent28Mon
29Tue2:513.23:033.68:25-0.29:00-0.46:544:52Waxing Crescent29Tue
30Wed3:433.34:003.49:24-0.29:52-0.36:534:53First Quarter30Wed
31Thu4:373.55:003.210:24-0.210:45-0.26:524:54First Quarter31Thu
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 10:16 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 transitional phase. Tonight's moon is 32% 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 Third Quarter (32% 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