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 1h 35m 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 - May 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu6:003.16:462.512:140.35:377:37First Quarter1Thu
2Fri6:523.07:362.612:200.81:020.45:367:38First Quarter2Fri
3Sat7:452.98:252.71:150.81:500.45:347:39First Quarter3Sat
4Sun8:392.89:112.82:120.72:370.55:337:40Waxing Gibbous4Sun
5Mon9:322.79:543.03:070.63:220.55:327:41Waxing Gibbous5Mon
6Tue10:232.710:353.23:580.44:030.55:317:42Waxing Gibbous6Tue
7Wed11:122.711:163.34:440.24:430.55:297:43Waxing Gibbous7Wed
8Thu12:012.65:280.05:230.55:287:44Full Moon8Thu
9Fri12:492.66:13-0.26:050.45:277:45Full Moon9Fri
10Sat12:433.71:372.76:58-0.36:500.45:267:46Full Moon10Sat
11Sun1:313.82:242.77:46-0.47:370.35:257:47Waning Gibbous11Sun
12Mon2:193.93:132.78:35-0.48:280.25:247:48Waning Gibbous12Mon
13Tue3:114.04:062.79:27-0.49:230.25:237:49Waning Gibbous13Tue
14Wed4:073.95:032.810:21-0.410:220.25:227:50Waning Gibbous14Wed
15Thu5:063.86:012.911:17-0.311:250.25:217:51Third Quarter15Thu
16Fri6:083.66:593.112:13-0.25:207:52Third Quarter16Fri
17Sat7:113.57:573.312:300.21:08-0.15:197:53Third Quarter17Sat
18Sun8:153.38:543.41:350.22:030.05:187:54Waning Crescent18Sun
19Mon9:203.19:473.62:420.12:580.15:177:55Waning Crescent19Mon
20Tue10:213.010:373.73:45-0.13:510.25:167:56Waning Crescent20Tue
21Wed11:202.911:263.84:42-0.24:400.35:167:57Waning Crescent21Wed
22Thu12:162.85:33-0.25:270.45:157:58New Moon22Thu
23Fri12:133.81:072.76:22-0.26:120.55:147:59New Moon23Fri
24Sat12:583.71:522.77:07-0.26:570.55:138:00New Moon24Sat
25Sun1:423.72:332.67:51-0.17:420.65:138:01New Moon25Sun
26Mon2:233.63:132.68:350.08:260.75:128:02Waxing Crescent26Mon
27Tue3:053.53:532.69:180.19:120.75:118:02Waxing Crescent27Tue
28Wed3:473.44:362.610:040.210:010.85:118:03Waxing Crescent28Wed
29Thu4:333.35:222.610:490.210:530.85:108:04Waxing Crescent29Thu
30Fri5:213.16:072.711:340.311:460.85:108:05First Quarter30Fri
31Sat6:113.06:522.812:170.45:098:06First Quarter31Sat
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