Tides Today & Tomorrow in Isle au Haut, ME

TIDE TIMES for Saturday, August 15, 2026
The tide is currently falling in Isle au Haut, ME.
Next low tide : in 2h 11m at 7:10 pm (-0.2 ft)
Next high tide (tomorrow) : 1:44 am (10.4 ft)
Sunset today : 7:39 pm
Sunrise tomorrow : 5:38 am
Moon phase : Waxing Crescent (11% illuminated)
Tide Station Location : Station #8414288
Common Questions About Tides

Isle au Haut, ME Tides - Jul 1947

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:288.710:349.83:530.24:001.34:548:21Full Moon1Tue
2Wed11:118.711:149.84:360.24:421.44:558:21Full Moon2Wed
3Thu11:518.711:539.85:170.25:221.44:558:21Full Moon3Thu
4Fri12:308.75:550.36:001.54:568:21Full Moon4Fri
5Sat12:319.71:078.66:330.46:381.54:578:20Waning Gibbous5Sat
6Sun1:089.61:448.67:090.57:161.64:578:20Waning Gibbous6Sun
7Mon1:469.52:218.77:460.57:551.64:588:20Waning Gibbous7Mon
8Tue2:259.43:008.78:230.68:361.64:598:19Waning Gibbous8Tue
9Wed3:069.23:418.89:020.79:211.54:598:19Third Quarter9Wed
10Thu3:519.04:249.09:440.710:091.35:008:18Third Quarter10Thu
11Fri4:408.95:119.210:290.811:021.15:018:18Third Quarter11Fri
12Sat5:348.76:029.511:180.911:580.85:028:17Third Quarter12Sat
13Sun6:328.76:569.812:120.95:028:17Waning Crescent13Sun
14Mon7:328.87:5310.212:570.41:090.85:038:16Waning Crescent14Mon
15Tue8:339.08:5010.61:570.02:070.65:048:15Waning Crescent15Tue
16Wed9:339.39:4711.02:56-0.53:060.45:058:15New Moon16Wed
17Thu10:309.610:4311.43:53-0.94:040.25:068:14New Moon17Thu
18Fri11:269.911:3911.54:49-1.25:010.05:078:13New Moon18Fri
19Sat12:2010.15:44-1.45:57-0.25:088:13New Moon19Sat
20Sun12:3411.51:1510.26:38-1.36:54-0.25:098:12Waxing Crescent20Sun
21Mon1:3011.32:0910.27:32-1.27:51-0.15:108:11Waxing Crescent21Mon
22Tue2:2610.93:0410.28:25-0.88:490.15:118:10Waxing Crescent22Tue
23Wed3:2310.33:5910.09:19-0.49:480.35:128:09First Quarter23Wed
24Thu4:229.74:559.810:130.110:480.55:138:08First Quarter24Thu
25Fri5:229.25:519.611:090.611:490.75:148:07First Quarter25Fri
26Sat6:248.76:479.512:061.15:158:06First Quarter26Sat
27Sun7:258.47:439.412:490.71:021.45:168:05Waxing Gibbous27Sun
28Mon8:228.38:359.41:460.71:571.55:178:04Waxing Gibbous28Mon
29Tue9:168.39:249.42:390.72:481.55:188:03Waxing Gibbous29Tue
30Wed10:038.410:109.53:280.63:351.55:198:02Waxing Gibbous30Wed
31Thu10:478.510:519.64:120.54:181.45:208:01Full Moon31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8414288)

Common Questions About Isle au Haut, ME Tides

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What time does the tide turn (slack tide) in Isle au Haut, ME today?

Slack tide in Isle au Haut, ME is approximately 10:27 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 Isle au Haut, ME?

Isle au Haut, ME is currently in a spring phase. Tonight's moon is 11% 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 Isle au Haut, ME 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 Isle au Haut, ME?

Tide predictions for Isle au Haut, ME 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 Isle au Haut, ME?

Tide data for Isle au Haut, ME is sourced from NOAA Station #8414288. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8414288.

What is the moon phase in Isle au Haut, ME tonight?

Tonight the moon over Isle au Haut, ME is Waxing Crescent (11% illuminated). This places Isle au Haut, ME 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