Tides Today & Tomorrow in Nantucket, MA

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently falling in Nantucket, MA.
Next low tide : in 4h 04m at 5:06 am (-0.1 ft)
Next high tide : 11:39 am (3.0 ft)
Sunset today : 7:45 pm
Sunrise tomorrow : 5:45 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8449130
Common Questions About Tides

Nantucket, MA Tides - May 1955

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:493.29:233.22:040.22:340.15:387:36Waxing Gibbous1Sun
2Mon9:503.110:143.33:100.23:270.25:367:37Waxing Gibbous2Mon
3Tue10:472.910:593.34:090.14:150.35:357:38Waxing Gibbous3Tue
4Wed11:392.811:413.45:000.04:590.45:347:39Waxing Gibbous4Wed
5Thu12:272.75:450.05:400.55:337:40Full Moon5Thu
6Fri12:213.41:102.76:270.06:200.55:317:41Full Moon6Fri
7Sat1:003.41:482.67:070.07:000.65:307:42Full Moon7Sat
8Sun1:373.42:252.67:460.07:400.65:297:44Full Moon8Sun
9Mon2:153.43:022.68:260.08:210.65:287:45Waning Gibbous9Mon
10Tue2:543.33:422.69:070.19:030.75:277:46Waning Gibbous10Tue
11Wed3:343.34:252.69:500.19:470.75:267:47Waning Gibbous11Wed
12Thu4:183.25:102.610:340.110:350.75:257:48Waning Gibbous12Thu
13Fri5:053.25:562.611:190.211:250.75:247:49Third Quarter13Fri
14Sat5:543.16:422.712:030.25:237:50Third Quarter14Sat
15Sun6:453.07:282.912:170.612:480.25:227:51Third Quarter15Sun
16Mon7:393.08:163.11:110.51:350.25:217:52Third Quarter16Mon
17Tue8:362.99:053.42:090.32:250.25:207:53Waning Crescent17Tue
18Wed9:342.99:553.63:070.13:160.25:197:54Waning Crescent18Wed
19Thu10:312.910:453.94:04-0.24:070.15:187:55Waning Crescent19Thu
20Fri11:282.911:384.14:58-0.44:580.05:177:56New Moon20Fri
21Sat12:263.05:51-0.65:50-0.15:167:56New Moon21Sat
22Sun12:344.21:233.06:45-0.76:44-0.15:157:57New Moon22Sun
23Mon1:304.32:193.17:39-0.87:38-0.15:157:58Waxing Crescent23Mon
24Tue2:264.33:143.18:33-0.78:350.05:147:59Waxing Crescent24Tue
25Wed3:224.24:113.19:28-0.69:330.05:138:00Waxing Crescent25Wed
26Thu4:204.05:093.210:24-0.410:350.15:128:01Waxing Crescent26Thu
27Fri5:213.86:073.211:20-0.311:390.25:128:02First Quarter27Fri
28Sat6:213.57:033.312:14-0.15:118:03First Quarter28Sat
29Sun7:233.27:593.412:420.31:070.15:118:04First Quarter29Sun
30Mon8:253.08:523.41:470.32:000.35:108:04Waxing Gibbous30Mon
31Tue9:262.89:413.42:510.32:520.45:108:05Waxing Gibbous31Tue
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 8:22 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 2% 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 (2% 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