Tides Today & Tomorrow in Nantucket, MA

TIDE TIMES for Wednesday, August 5, 2026
The tide is currently falling in Nantucket, MA.
Next low tide (tomorrow) : in 18m at 12:07 am (0.2 ft)
Next high tide (tomorrow) : 6:32 am (2.9 ft)
Sunset today : 7:52 pm
Sunrise tomorrow : 5:39 am
Moon phase : Third Quarter (55% illuminated)
Tide Station Location : Station #8449130
Common Questions About Tides

Nantucket, MA Tides - Sep 1965

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:263.35:393.710:560.511:440.26:067:13First Quarter1Wed
2Thu6:233.06:323.711:480.76:077:12First Quarter2Thu
3Fri7:212.97:263.612:420.312:410.86:087:10First Quarter3Fri
4Sat8:202.88:223.51:410.41:360.96:097:08First Quarter4Sat
5Sun9:162.79:163.52:410.52:330.96:107:07Waxing Gibbous5Sun
6Mon10:072.710:063.53:370.53:280.96:117:05Waxing Gibbous6Mon
7Tue10:522.810:523.54:260.54:170.96:127:03Waxing Gibbous7Tue
8Wed11:342.811:363.55:070.55:020.86:137:02Waxing Gibbous8Wed
9Thu12:142.95:440.55:440.76:147:00Full Moon9Thu
10Fri12:193.412:523.06:190.56:240.66:156:58Full Moon10Fri
11Sat1:003.41:293.16:540.57:050.66:166:57Full Moon11Sat
12Sun1:403.42:043.27:280.57:450.56:176:55Full Moon12Sun
13Mon2:203.32:393.48:030.58:270.46:186:53Waning Gibbous13Mon
14Tue3:003.23:163.58:400.59:120.36:196:52Waning Gibbous14Tue
15Wed3:443.13:563.69:200.610:010.26:206:50Waning Gibbous15Wed
16Thu4:313.04:423.710:040.610:530.26:216:48Waning Gibbous16Thu
17Fri5:242.95:343.710:540.611:480.16:226:46Third Quarter17Fri
18Sat6:202.86:303.811:470.66:236:45Third Quarter18Sat
19Sun7:192.87:313.912:450.112:450.66:246:43Third Quarter19Sun
20Mon8:212.98:354.01:450.11:460.56:256:41Waning Crescent20Mon
21Tue9:223.09:374.02:470.02:510.46:266:40Waning Crescent21Tue
22Wed10:203.210:384.13:460.03:530.26:276:38Waning Crescent22Wed
23Thu11:163.411:364.04:40-0.14:520.16:286:36New Moon23Thu
24Fri12:103.65:31-0.15:49-0.16:296:34New Moon24Fri
25Sat12:344.01:013.86:20-0.16:44-0.26:306:33New Moon25Sat
26Sun1:303.81:503.97:080.07:38-0.26:316:31New Moon26Sun
27Mon2:233.72:363.97:550.18:30-0.26:326:29Waxing Crescent27Mon
28Tue3:143.53:223.98:420.39:23-0.16:336:28Waxing Crescent28Tue
29Wed4:063.24:103.89:300.510:170.06:346:26Waxing Crescent29Wed
30Thu4:593.05:003.710:210.711:120.26:366:24First Quarter30Thu
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 3:19 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 neap phase. Tonight's moon is 55% 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 minimum.

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 (55% illuminated). This places Nantucket, MA in a neap tide cycle, so tidal ranges are near their weekly minimum 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