Tides Today & Tomorrow in Isle au Haut, ME

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently falling in Isle au Haut, ME.
Next low tide : in 3h 04m at 9:14 pm (0.5 ft)
Next high tide (tomorrow) : 3:46 am (9.1 ft)
Sunset today : 7:55 pm
Sunrise tomorrow : 5:26 am
Moon phase : Third Quarter (66% illuminated)
Tide Station Location : Station #8414288
Common Questions About Tides

Isle au Haut, ME Tides - Feb 1965

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:349.711:048.74:010.94:320.06:524:44New Moon1Mon
2Tue11:099.811:388.94:370.85:060.06:504:45New Moon2Tue
3Wed11:449.85:120.85:400.06:494:47Waxing Crescent3Wed
4Thu12:129.012:209.75:480.76:130.06:484:48Waxing Crescent4Thu
5Fri12:469.112:579.66:250.76:480.16:474:50Waxing Crescent5Fri
6Sat1:239.21:379.47:050.67:260.26:464:51Waxing Crescent6Sat
7Sun2:039.32:229.17:490.68:090.46:444:52First Quarter7Sun
8Mon2:489.33:138.88:390.68:570.66:434:54First Quarter8Mon
9Tue3:399.44:118.59:360.59:530.86:424:55First Quarter9Tue
10Wed4:369.45:168.410:390.410:550.96:404:56First Quarter10Wed
11Thu5:409.66:258.411:470.26:394:58Waxing Gibbous11Thu
12Fri6:469.97:328.712:020.812:54-0.26:384:59Waxing Gibbous12Fri
13Sat7:5110.38:349.21:090.51:57-0.76:365:01Waxing Gibbous13Sat
14Sun8:5110.89:319.72:110.12:55-1.16:355:02Full Moon14Sun
15Mon9:4711.110:2410.13:09-0.33:48-1.46:335:03Full Moon15Mon
16Tue10:4111.311:1410.44:04-0.74:39-1.66:325:05Full Moon16Tue
17Wed11:3211.34:56-0.95:28-1.56:305:06Waning Gibbous17Wed
18Thu12:0310.412:2211.05:47-0.86:16-1.16:295:07Waning Gibbous18Thu
19Fri12:5110.41:1210.56:38-0.67:04-0.76:275:09Waning Gibbous19Fri
20Sat1:3910.12:039.87:29-0.37:52-0.16:265:10Waning Gibbous20Sat
21Sun2:289.82:569.18:220.18:420.66:245:11Third Quarter21Sun
22Mon3:199.33:528.59:170.59:351.16:225:13Third Quarter22Mon
23Tue4:138.94:528.010:150.910:321.66:215:14Third Quarter23Tue
24Wed5:118.65:547.711:151.111:311.86:195:15Third Quarter24Wed
25Thu6:118.56:547.712:161.16:185:17Waning Crescent25Thu
26Fri7:088.67:497.812:301.81:121.06:165:18Waning Crescent26Fri
27Sat8:018.88:388.11:241.62:020.86:145:19Waning Crescent27Sat
28Sun8:479.19:208.42:121.32:460.56:135:21Waning Crescent28Sun
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 12:30 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 Isle au Haut, ME?

Isle au Haut, ME is currently in a transitional phase. Tonight's moon is 66% 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 shifting between spring and neap.

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 Third Quarter (66% illuminated). This places Isle au Haut, ME in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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