Tides Today & Tomorrow in Isle au Haut, ME

TIDE TIMES for Sunday, August 9, 2026
The tide is currently rising in Isle au Haut, ME.
Next low tide : 1:32 pm (1.0 ft)
Next high tide : in 5h 47m at 7:58 am (8.6 ft)
Sunset today : 7:48 pm
Sunrise tomorrow : 5:31 am
Moon phase : Waning Crescent (13% illuminated)
Tide Station Location : Station #8414288
Common Questions About Tides

Isle au Haut, ME Tides - Mar 1958

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:149.16:548.412:160.56:115:22Waxing Gibbous1Sat
2Sun7:139.67:509.012:320.91:140.06:105:23Waxing Gibbous2Sun
3Mon8:1010.28:439.71:310.32:07-0.66:085:24Waxing Gibbous3Mon
4Tue9:0310.79:3310.32:25-0.32:58-1.16:065:26Full Moon4Tue
5Wed9:5411.210:2210.93:17-1.03:47-1.56:055:27Full Moon5Wed
6Thu10:4511.411:1011.34:08-1.44:35-1.76:035:28Full Moon6Thu
7Fri11:3611.44:59-1.75:24-1.66:015:29Waning Gibbous7Fri
8Sat12:0011.412:2711.25:51-1.76:14-1.45:595:31Waning Gibbous8Sat
9Sun12:5011.31:2110.76:45-1.57:07-0.95:575:32Waning Gibbous9Sun
10Mon1:4311.02:1710.17:41-1.18:02-0.35:565:33Third Quarter10Mon
11Tue2:4010.53:189.58:40-0.69:020.25:545:35Third Quarter11Tue
12Wed3:4110.04:238.99:44-0.110:070.75:525:36Third Quarter12Wed
13Thu4:469.55:318.610:500.211:140.95:505:37Third Quarter13Thu
14Fri5:549.36:368.611:560.45:495:38Waning Crescent14Fri
15Sat6:589.27:368.712:190.912:570.45:475:40Waning Crescent15Sat
16Sun7:559.38:288.91:180.81:510.35:455:41Waning Crescent16Sun
17Mon8:469.59:139.12:100.62:380.25:435:42Waning Crescent17Mon
18Tue9:309.69:539.32:560.33:200.15:415:43New Moon18Tue
19Wed10:109.610:299.53:380.23:580.15:395:45New Moon19Wed
20Thu10:479.611:039.64:150.14:320.25:385:46New Moon20Thu
21Fri11:239.511:369.64:510.15:060.35:365:47New Moon21Fri
22Sat11:579.45:250.15:380.55:345:48Waxing Crescent22Sat
23Sun12:099.612:329.26:000.26:110.75:325:49Waxing Crescent23Sun
24Mon12:439.51:088.96:350.36:460.95:305:51Waxing Crescent24Mon
25Tue1:199.41:478.77:130.57:251.15:285:52Waxing Crescent25Tue
26Wed1:599.22:318.57:550.68:081.35:275:53First Quarter26Wed
27Thu2:459.13:208.38:430.78:591.45:255:54First Quarter27Thu
28Fri3:379.04:178.39:380.89:561.35:235:56First Quarter28Fri
29Sat4:369.05:188.410:380.710:591.15:215:57First Quarter29Sat
30Sun5:409.26:208.811:400.45:195:58Waxing Gibbous30Sun
31Mon6:439.67:209.412:040.712:410.05:185:59Waxing Gibbous31Mon
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 10:45 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 Isle au Haut, ME?

Isle au Haut, ME is currently in a spring phase. Tonight's moon is 13% 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 Waning Crescent (13% 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