Tides Today & Tomorrow in Islesboro, ME

TIDE TIMES for Saturday, August 8, 2026
The tide is currently rising in Islesboro, ME.
Next low tide : 1:02 pm (1.2 ft)
Next high tide : in 5h 37m at 7:02 am (9.0 ft)
Sunset today : 7:51 pm
Sunrise tomorrow : 5:31 am
Moon phase : Waning Crescent (22% illuminated)
Tide Station Location : Station #8414888
Common Questions About Tides

Islesboro, ME Tides - Oct 1957

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:559.46:1410.011:561.46:336:17First Quarter1Tue
2Wed6:569.27:169.712:380.812:591.66:346:15First Quarter2Wed
3Thu7:539.28:129.71:370.91:581.56:356:13Waxing Gibbous3Thu
4Fri8:459.49:049.72:301.02:501.36:376:11Waxing Gibbous4Fri
5Sat9:319.69:509.93:170.93:371.16:386:10Waxing Gibbous5Sat
6Sun10:139.910:3210.03:590.84:190.86:396:08Waxing Gibbous6Sun
7Mon10:5010.111:1010.04:370.74:570.56:406:06Full Moon7Mon
8Tue11:2410.311:4510.05:120.75:330.36:416:04Full Moon8Tue
9Wed11:5410.45:450.76:080.26:436:02Full Moon9Wed
10Thu12:1810.012:2410.56:180.86:430.26:446:01Full Moon10Thu
11Fri12:509.912:5510.56:510.97:190.26:455:59Waning Gibbous11Fri
12Sat1:249.71:3010.47:271.17:570.36:465:57Waning Gibbous12Sat
13Sun2:019.52:0910.38:051.28:390.46:485:55Waning Gibbous13Sun
14Mon2:439.32:5410.28:481.49:250.66:495:54Waning Gibbous14Mon
15Tue3:329.23:4510.19:371.510:180.76:505:52Third Quarter15Tue
16Wed4:279.14:4410.010:341.611:180.76:515:50Third Quarter16Wed
17Thu5:309.35:4910.111:391.46:535:49Third Quarter17Thu
18Fri6:369.76:5810.312:220.512:471.06:545:47Waning Crescent18Fri
19Sat7:4010.38:0610.71:240.21:530.36:555:45Waning Crescent19Sat
20Sun8:4011.09:0911.22:24-0.32:55-0.56:575:44Waning Crescent20Sun
21Mon9:3611.810:0711.63:20-0.73:52-1.26:585:42New Moon21Mon
22Tue10:2912.411:0111.84:13-1.04:47-1.86:595:40New Moon22Tue
23Wed11:2012.711:5411.85:05-1.25:39-2.17:005:39New Moon23Wed
24Thu12:1012.85:56-1.16:31-2.17:025:37New Moon24Thu
25Fri12:4611.61:0012.66:46-0.97:23-1.87:035:36Waxing Crescent25Fri
26Sat1:3811.31:5112.17:38-0.48:16-1.37:045:34Waxing Crescent26Sat
27Sun1:3110.71:4411.57:300.18:09-0.76:064:33Waxing Crescent27Sun
28Mon2:2610.22:3910.88:240.79:040.06:074:31First Quarter28Mon
29Tue3:249.73:3810.19:211.310:010.66:084:30First Quarter29Tue
30Wed4:239.34:399.610:231.711:001.06:104:28First Quarter30Wed
31Thu5:219.15:399.311:251.811:561.26:114:27First Quarter31Thu
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 10:02 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 transitional phase. Tonight's moon is 22% 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 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 Waning Crescent (22% illuminated). This places Islesboro, 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