Tides Today & Tomorrow in Isle au Haut, ME

TIDE TIMES for Sunday, August 16, 2026
The tide is currently falling in Isle au Haut, ME.
Next low tide : in 3h 16m at 8:00 pm (0.0 ft)
Next high tide (tomorrow) : 2:33 am (9.8 ft)
Sunset today : 7:37 pm
Sunrise tomorrow : 5:39 am
Moon phase : Waxing Crescent (18% illuminated)
Tide Station Location : Station #8414288
Common Questions About Tides

Isle au Haut, ME Tides - Dec 1945

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:239.38:508.81:460.92:170.56:493:57Waning Crescent1Sat
2Sun9:039.59:318.92:280.92:580.36:503:57New Moon2Sun
3Mon9:409.710:108.93:070.93:370.26:513:57New Moon3Mon
4Tue10:169.810:478.93:441.04:140.16:523:57New Moon4Tue
5Wed10:509.811:238.84:191.14:490.16:533:56New Moon5Wed
6Thu11:269.811:598.74:541.25:250.26:543:56New Moon6Thu
7Fri12:029.75:301.36:030.26:553:56Waxing Crescent7Fri
8Sat12:378.712:419.66:091.36:420.36:563:56Waxing Crescent8Sat
9Sun1:188.61:249.56:511.47:260.36:573:56Waxing Crescent9Sun
10Mon2:038.62:129.47:381.48:130.36:583:56First Quarter10Mon
11Tue2:538.73:059.38:311.39:050.36:593:56First Quarter11Tue
12Wed3:478.94:049.29:301.110:010.37:003:56First Quarter12Wed
13Thu4:459.25:079.210:320.811:000.27:013:56First Quarter13Thu
14Fri5:449.66:119.311:360.411:590.07:013:56Waxing Gibbous14Fri
15Sat6:4210.17:149.612:38-0.27:023:56Waxing Gibbous15Sat
16Sun7:3810.68:139.912:57-0.21:37-0.87:033:57Waxing Gibbous16Sun
17Mon8:3311.19:0910.11:53-0.42:33-1.37:043:57Full Moon17Mon
18Tue9:2511.510:0310.32:47-0.53:27-1.67:043:57Full Moon18Tue
19Wed10:1711.610:5610.33:40-0.64:20-1.77:053:58Full Moon19Wed
20Thu11:0811.511:4810.14:33-0.55:11-1.67:053:58Full Moon20Thu
21Fri12:0011.25:25-0.36:03-1.37:063:59Waning Gibbous21Fri
22Sat12:409.912:5210.86:180.16:55-0.97:063:59Waning Gibbous22Sat
23Sun1:329.61:4610.27:120.47:48-0.47:074:00Waning Gibbous23Sun
24Mon2:269.22:409.68:070.88:410.17:074:00Third Quarter24Mon
25Tue3:219.03:389.19:041.19:350.67:084:01Third Quarter25Tue
26Wed4:168.74:368.610:031.310:300.97:084:01Third Quarter26Wed
27Thu5:128.75:368.311:031.311:241.27:084:02Third Quarter27Thu
28Fri6:068.76:338.212:001.37:094:03Waning Crescent28Fri
29Sat6:578.87:278.212:161.312:541.07:094:04Waning Crescent29Sat
30Sun7:449.08:178.21:061.31:430.87:094:04Waning Crescent30Sun
31Mon8:289.29:038.41:521.32:280.57:094:05Waning Crescent31Mon
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 11:16 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 18% 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 (18% 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