Tides Today & Tomorrow in Isle au Haut, ME

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently rising in Isle au Haut, ME.
Next low tide : 8:43 am (0.4 ft)
Next high tide : in 21m at 2:57 am (9.4 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 - Sep 2085

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:389.28:5810.52:01-0.12:170.45:587:09Waxing Gibbous1Sat
2Sun9:349.89:5511.02:58-0.63:16-0.26:007:07Full Moon2Sun
3Mon10:2710.510:4911.33:51-1.04:12-0.86:017:06Full Moon3Mon
4Tue11:1811.011:4211.44:42-1.35:05-1.26:027:04Full Moon4Tue
5Wed12:0811.35:32-1.45:58-1.46:037:02Waning Gibbous5Wed
6Thu12:3411.312:5711.46:21-1.26:51-1.36:047:00Waning Gibbous6Thu
7Fri1:2610.91:4811.27:11-0.87:44-1.06:056:58Waning Gibbous7Fri
8Sat2:1910.32:4010.88:03-0.38:39-0.66:066:57Waning Gibbous8Sat
9Sun3:159.73:3510.38:570.39:37-0.16:086:55Third Quarter9Sun
10Mon4:149.14:349.89:550.910:380.46:096:53Third Quarter10Mon
11Tue5:168.65:369.410:561.311:410.76:106:51Third Quarter11Tue
12Wed6:208.36:399.111:591.56:116:49Third Quarter12Wed
13Thu7:228.37:409.112:430.91:011.56:126:47Waning Crescent13Thu
14Fri8:188.48:359.21:410.91:571.46:136:45Waning Crescent14Fri
15Sat9:088.69:239.32:320.82:471.16:146:44Waning Crescent15Sat
16Sun9:518.910:069.43:170.63:320.96:156:42Waning Crescent16Sun
17Mon10:309.110:459.53:570.54:130.76:176:40New Moon17Mon
18Tue11:059.311:229.54:330.54:500.56:186:38New Moon18Tue
19Wed11:399.511:579.45:070.55:250.46:196:36New Moon19Wed
20Thu12:119.65:400.66:000.46:206:34New Moon20Thu
21Fri12:329.312:449.76:120.76:350.46:216:32Waxing Crescent21Fri
22Sat1:079.21:189.76:450.97:110.46:226:31Waxing Crescent22Sat
23Sun1:449.01:569.77:211.07:520.56:246:29Waxing Crescent23Sun
24Mon2:268.82:399.68:021.28:380.66:256:27Waxing Crescent24Mon
25Tue3:128.63:289.58:491.39:300.76:266:25First Quarter25Tue
26Wed4:068.44:249.49:431.410:290.76:276:23First Quarter26Wed
27Thu5:078.45:279.510:451.411:320.66:286:21First Quarter27Thu
28Fri6:128.56:349.611:521.26:296:20Waxing Gibbous28Fri
29Sat7:179.07:409.912:370.31:000.76:316:18Waxing Gibbous29Sat
30Sun8:179.68:4110.31:39-0.12:030.16:326:16Waxing Gibbous30Sun
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 5:50 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