Tides Today & Tomorrow in Nantucket, MA

TIDE TIMES for Saturday, July 25, 2026
The tide is currently rising in Nantucket, MA.
Next low tide (tomorrow) : 4:45 am (0.5 ft)
Next high tide : in 1h 53m at 10:15 pm (3.5 ft)
Sunset today : 8:04 pm
Sunrise tomorrow : 5:29 am
Moon phase : Waxing Gibbous (86% illuminated)
Tide Station Location : Station #8449130
Common Questions About Tides

Nantucket, MA Tides - Jun 2068

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:254.02:132.97:28-0.47:260.35:098:07New Moon1Fri
2Sat2:133.92:592.98:15-0.38:150.45:088:08Waxing Crescent2Sat
3Sun2:593.73:442.99:02-0.29:050.45:088:09Waxing Crescent3Sun
4Mon3:453.64:302.99:490.09:570.55:088:09Waxing Crescent4Mon
5Tue4:333.45:162.910:360.110:510.65:078:10Waxing Crescent5Tue
6Wed5:223.26:013.011:230.211:450.65:078:11First Quarter6Wed
7Thu6:113.06:473.012:090.45:078:11First Quarter7Thu
8Fri7:022.87:333.112:390.612:540.55:078:12First Quarter8Fri
9Sat7:552.78:203.21:330.61:400.65:068:12First Quarter9Sat
10Sun8:492.69:073.32:280.62:270.75:068:13Waxing Gibbous10Sun
11Mon9:422.69:523.43:210.53:140.75:068:13Waxing Gibbous11Mon
12Tue10:322.510:363.54:090.43:590.75:068:14Waxing Gibbous12Tue
13Wed11:212.511:213.64:540.24:420.65:068:14Waxing Gibbous13Wed
14Thu12:092.65:370.15:250.65:068:15Full Moon14Thu
15Fri12:073.712:572.76:200.06:100.55:068:15Full Moon15Fri
16Sat12:543.81:432.87:04-0.16:570.45:068:15Full Moon16Sat
17Sun1:413.92:292.97:49-0.27:470.35:068:16Waning Gibbous17Sun
18Mon2:293.93:163.18:35-0.38:390.25:078:16Waning Gibbous18Mon
19Tue3:193.94:063.29:23-0.39:350.25:078:16Waning Gibbous19Tue
20Wed4:133.84:593.410:13-0.310:340.15:078:17Waning Gibbous20Wed
21Thu5:103.65:533.611:06-0.211:350.15:078:17Third Quarter21Thu
22Fri6:103.46:483.711:58-0.25:078:17Third Quarter22Fri
23Sat7:113.37:443.912:360.012:520.05:088:17Third Quarter23Sat
24Sun8:143.18:423.91:390.01:480.15:088:17Waning Crescent24Sun
25Mon9:183.09:384.02:430.02:450.25:088:17Waning Crescent25Mon
26Tue10:202.910:334.03:44-0.13:420.35:098:17Waning Crescent26Tue
27Wed11:182.911:264.04:41-0.14:360.35:098:17Waning Crescent27Wed
28Thu12:152.95:33-0.15:270.45:108:17New Moon28Thu
29Fri12:184.01:072.96:22-0.16:160.45:108:17New Moon29Fri
30Sat1:073.91:532.97:08-0.17:040.45:118:17New Moon30Sat
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 1:30 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 86% 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 Waxing Gibbous (86% 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