Tides Today & Tomorrow in Nantucket, MA

TIDE TIMES for Wednesday, August 12, 2026
The tide is currently rising in Nantucket, MA.
Next low tide : 6:00 pm (0.1 ft)
Next high tide : in 48m at 12:36 pm (3.2 ft)
Sunset today : 7:43 pm
Sunrise tomorrow : 5:46 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #8449130
Common Questions About Tides

Nantucket, MA Tides - Apr 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:473.25:342.411:010.111:000.65:236:05First Quarter1Tue
2Wed5:403.16:262.311:550.311:540.75:216:06First Quarter2Wed
3Thu6:353.07:202.412:490.45:196:07First Quarter3Thu
4Fri7:312.98:122.412:510.71:440.45:186:08Waxing Gibbous4Fri
5Sat8:242.98:582.61:500.72:330.45:166:09Waxing Gibbous5Sat
6Sun9:142.99:412.72:440.63:150.45:146:10Waxing Gibbous6Sun
7Mon10:012.910:212.93:320.43:530.45:136:11Waxing Gibbous7Mon
8Tue10:472.811:003.04:150.34:290.45:116:12Full Moon8Tue
9Wed11:322.811:383.24:570.15:050.45:096:13Full Moon9Wed
10Thu12:172.85:390.05:420.45:086:14Full Moon10Thu
11Fri12:173.41:002.76:21-0.26:210.35:066:16Full Moon11Fri
12Sat12:573.51:432.77:05-0.37:030.35:056:17Waning Gibbous12Sat
13Sun1:403.62:292.67:52-0.37:480.35:036:18Waning Gibbous13Sun
14Mon2:273.73:192.68:43-0.38:390.35:016:19Waning Gibbous14Mon
15Tue3:193.74:142.69:37-0.39:350.35:006:20Third Quarter15Tue
16Wed4:183.75:132.610:34-0.310:350.34:586:21Third Quarter16Wed
17Thu5:203.66:132.711:31-0.211:370.24:576:22Third Quarter17Thu
18Fri6:233.57:142.812:30-0.24:556:23Third Quarter18Fri
19Sat7:283.58:133.112:430.21:29-0.14:546:24Waning Crescent19Sat
20Sun8:323.49:083.31:500.12:25-0.14:526:25Waning Crescent20Sun
21Mon9:333.310:003.52:54-0.13:18-0.14:516:26Waning Crescent21Mon
22Tue10:323.210:493.63:52-0.34:060.04:496:27New Moon22Tue
23Wed11:293.111:373.74:46-0.44:530.14:486:28New Moon23Wed
24Thu12:223.05:37-0.55:390.24:466:29New Moon24Thu
25Fri12:233.71:102.96:25-0.46:240.34:456:31New Moon25Fri
26Sat1:063.71:542.87:12-0.47:090.44:446:32Waxing Crescent26Sat
27Sun1:493.63:382.78:59-0.28:550.55:427:33Waxing Crescent27Sun
28Mon3:333.54:232.69:46-0.19:430.65:417:34Waxing Crescent28Mon
29Tue4:193.35:092.510:360.110:340.75:397:35Waxing Crescent29Tue
30Wed5:093.25:572.511:260.211:260.75:387:36First 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 3:18 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 0% 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 New Moon (0% 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