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 3h 49m 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 - Jan 1958

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:478.97:208.112:051.412:471.07:094:06Waxing Gibbous1Wed
2Thu7:369.38:108.412:561.31:370.57:094:07Waxing Gibbous2Thu
3Fri8:229.78:578.81:441.02:230.17:094:08Waxing Gibbous3Fri
4Sat9:0710.19:419.22:300.73:08-0.47:094:09Full Moon4Sat
5Sun9:5110.510:259.63:150.33:51-0.87:094:10Full Moon5Sun
6Mon10:3610.911:099.94:000.04:35-1.17:094:11Full Moon6Mon
7Tue11:2211.111:5510.14:46-0.25:20-1.27:094:12Waning Gibbous7Tue
8Wed12:0911.15:34-0.46:07-1.37:094:13Waning Gibbous8Wed
9Thu12:4310.31:0010.96:25-0.56:56-1.17:084:14Waning Gibbous9Thu
10Fri1:3310.31:5310.57:18-0.47:47-0.97:084:15Waning Gibbous10Fri
11Sat2:2710.32:5010.18:16-0.38:43-0.57:084:16Third Quarter11Sat
12Sun3:2410.23:529.69:18-0.19:42-0.17:074:18Third Quarter12Sun
13Mon4:2510.04:589.210:230.010:450.27:074:19Third Quarter13Mon
14Tue5:2810.06:068.911:300.011:490.47:064:20Waning Crescent14Tue
15Wed6:3210.07:128.912:35-0.17:064:21Waning Crescent15Wed
16Thu7:3310.18:129.012:520.41:36-0.37:054:22Waning Crescent16Thu
17Fri8:2910.29:069.21:510.32:30-0.57:054:24Waning Crescent17Fri
18Sat9:2010.39:559.32:440.23:20-0.67:044:25New Moon18Sat
19Sun10:0710.410:399.43:330.24:06-0.67:044:26New Moon19Sun
20Mon10:5110.311:219.44:180.24:47-0.57:034:27New Moon20Mon
21Tue11:3110.25:000.25:27-0.47:024:29New Moon21Tue
22Wed12:009.412:119.95:400.46:05-0.17:014:30Waxing Crescent22Wed
23Thu12:389.312:509.66:190.66:420.27:014:31Waxing Crescent23Thu
24Fri1:169.21:299.26:590.87:200.57:004:33Waxing Crescent24Fri
25Sat1:559.02:118.87:411.07:590.86:594:34Waxing Crescent25Sat
26Sun2:368.82:558.48:241.18:411.16:584:35First Quarter26Sun
27Mon3:208.73:448.19:121.39:271.36:574:37First Quarter27Mon
28Tue4:098.64:387.910:051.410:181.56:564:38First Quarter28Tue
29Wed5:028.65:367.811:021.311:141.56:554:39First Quarter29Wed
30Thu5:578.86:357.912:001.06:544:41Waxing Gibbous30Thu
31Fri6:539.17:318.312:111.412:560.66:534:42Waxing Gibbous31Fri
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