Tides Today & Tomorrow in Islesboro, ME

TIDE TIMES for Monday, August 3, 2026
The tide is currently falling in Islesboro, ME.
Next low tide : in 3h 08m at 9:02 pm (0.7 ft)
Next high tide (tomorrow) : 3:05 am (9.9 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 5:25 am
Moon phase : Waning Gibbous (75% illuminated)
Tide Station Location : Station #8414888
Common Questions About Tides

Islesboro, ME Tides - Dec 1964

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:0010.89:3010.02:440.53:180.06:513:58Waning Crescent1Tue
2Wed9:4310.910:149.93:290.74:02-0.16:523:57New Moon2Wed
3Thu10:2310.810:559.84:100.84:43-0.16:533:57New Moon3Thu
4Fri10:5910.711:359.64:481.05:210.06:543:57New Moon4Fri
5Sat11:3410.55:251.35:590.16:553:57New Moon5Sat
6Sun12:129.412:0810.36:011.56:370.36:563:57Waxing Crescent6Sun
7Mon12:499.112:4210.16:381.77:140.66:573:56Waxing Crescent7Mon
8Tue1:268.91:199.87:161.97:530.86:583:56Waxing Crescent8Tue
9Wed2:048.71:599.57:572.18:331.16:593:56Waxing Crescent9Wed
10Thu2:448.62:439.38:412.29:161.27:003:56First Quarter10Thu
11Fri3:298.73:339.29:312.310:041.37:013:56First Quarter11Fri
12Sat4:188.84:289.110:262.110:551.37:023:56First Quarter12Sat
13Sun5:109.25:269.211:251.711:471.17:033:57First Quarter13Sun
14Mon6:029.76:259.412:231.27:043:57Waxing Gibbous14Mon
15Tue6:5410.47:259.812:390.91:190.47:043:57Waxing Gibbous15Tue
16Wed7:4711.18:2310.21:320.52:14-0.37:053:57Waxing Gibbous16Wed
17Thu8:3911.89:1910.62:250.13:08-1.07:063:58Full Moon17Thu
18Fri9:3212.410:1310.93:17-0.24:01-1.67:063:58Full Moon18Fri
19Sat10:2412.811:0711.14:10-0.54:54-2.07:073:58Full Moon19Sat
20Sun11:1812.95:04-0.65:48-2.17:073:59Waning Gibbous20Sun
21Mon12:0111.212:1312.85:59-0.66:43-2.07:083:59Waning Gibbous21Mon
22Tue12:5711.11:1012.46:56-0.47:39-1.77:084:00Waning Gibbous22Tue
23Wed1:5511.02:0911.97:55-0.28:35-1.27:094:00Waning Gibbous23Wed
24Thu2:5510.83:1111.28:570.29:34-0.67:094:01Third Quarter24Thu
25Fri3:5610.64:1610.610:020.510:34-0.17:104:02Third Quarter25Fri
26Sat4:5710.45:2110.011:080.711:340.47:104:02Third Quarter26Sat
27Sun5:5610.46:239.712:120.77:104:03Third Quarter27Sun
28Mon6:5210.37:229.512:320.71:110.77:114:04Waning Crescent28Mon
29Tue7:4510.48:179.31:261.02:050.57:114:04Waning Crescent29Tue
30Wed8:3310.49:079.32:161.22:540.47:114:05Waning Crescent30Wed
31Thu9:1810.53:021.33:390.37:114:06Waning Crescent31Thu
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 12:03 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 75% 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 Gibbous (75% 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