Tides Today & Tomorrow in Islesboro, ME

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently falling in Islesboro, ME.
Next low tide (tomorrow) : in 6h 10m at 5:02 am (-1.2 ft)
Next high tide (tomorrow) : 11:15 am (10.7 ft)
Sunset today : 7:47 pm
Sunrise tomorrow : 5:34 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8414888
Common Questions About Tides

Islesboro, ME Tides - Oct 1950

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:468.91:489.57:431.98:181.25:335:18Waning Gibbous1Sun
2Mon2:278.52:289.28:222.39:041.65:345:16Third Quarter2Mon
3Tue3:138.13:168.99:082.69:571.95:355:14Third Quarter3Tue
4Wed4:097.84:138.810:022.810:582.05:365:12Third Quarter4Wed
5Thu5:127.85:178.911:052.811:591.85:375:10Third Quarter5Thu
6Fri6:138.16:199.112:072.55:395:08Waning Crescent6Fri
7Sat7:078.67:169.612:531.41:051.95:405:07Waning Crescent7Sat
8Sun7:559.38:0910.11:420.91:571.25:415:05Waning Crescent8Sun
9Mon8:3910.18:5810.72:280.42:460.45:425:03Waning Crescent9Mon
10Tue9:2210.99:4511.13:11-0.13:34-0.45:445:01New Moon10Tue
11Wed10:0411.610:3111.43:54-0.54:21-1.15:454:59New Moon11Wed
12Thu10:4812.111:1911.44:38-0.75:09-1.55:464:58New Moon12Thu
13Fri11:3312.45:23-0.75:58-1.75:474:56Waxing Crescent13Fri
14Sat12:0911.212:2212.46:11-0.56:50-1.65:484:54Waxing Crescent14Sat
15Sun1:0210.91:1412.17:02-0.17:46-1.25:504:53Waxing Crescent15Sun
16Mon1:5910.42:1211.67:570.48:46-0.75:514:51First Quarter16Mon
17Tue3:029.93:1711.08:590.99:52-0.25:524:49First Quarter17Tue
18Wed4:139.54:2910.610:091.311:020.25:544:48First Quarter18Wed
19Thu5:239.45:4210.311:231.45:554:46First Quarter19Thu
20Fri6:299.56:4810.212:100.312:331.25:564:44Waxing Gibbous20Fri
21Sat7:289.87:4810.31:100.31:350.95:574:43Waxing Gibbous21Sat
22Sun8:2010.28:4210.32:040.32:290.65:594:41Waxing Gibbous22Sun
23Mon9:0710.59:2910.32:520.33:170.36:004:39Waxing Gibbous23Mon
24Tue9:4810.610:1210.23:350.44:010.16:014:38Full Moon24Tue
25Wed10:2610.710:5210.04:140.54:400.06:034:36Full Moon25Wed
26Thu11:0010.611:309.84:500.85:180.16:044:35Full Moon26Thu
27Fri11:3310.45:251.15:540.26:054:33Full Moon27Fri
28Sat12:069.512:0410.25:591.46:300.46:074:32Waning Gibbous28Sat
29Sun12:419.112:379.96:331.77:080.76:084:30Waning Gibbous29Sun
30Mon1:178.81:139.67:092.17:471.16:094:29Waning Gibbous30Mon
31Tue1:568.41:539.47:492.48:311.46:114:27Waning Gibbous31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8414888)

Common Questions About Islesboro, ME Tides

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What time does the tide turn (slack tide) in Islesboro, ME today?

Slack tide in Islesboro, ME is approximately 8:08 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 Islesboro, ME?

Islesboro, ME is currently in a spring phase. Tonight's moon is 2% 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 Islesboro, 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 Islesboro, ME?

Tide predictions for Islesboro, 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 Islesboro, ME?

Tide data for Islesboro, ME is sourced from NOAA Station #8414888. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8414888.

What is the moon phase in Islesboro, ME tonight?

Tonight the moon over Islesboro, ME is New Moon (2% illuminated). This places Islesboro, 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