Tides Today & Tomorrow in Islesboro, ME

TIDE TIMES for Sunday, August 9, 2026
The tide is currently falling in Islesboro, ME.
Next low tide : in 1h 55m at 2:02 am (0.1 ft)
Next high tide : 8:13 am (9.2 ft)
Sunset today : 7:50 pm
Sunrise tomorrow : 5:32 am
Moon phase : Waning Crescent (13% illuminated)
Tide Station Location : Station #8414888
Common Questions About Tides

Islesboro, ME Tides - Jan 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:5211.61:0812.46:55-0.97:30-1.77:114:06Waning Gibbous1Sun
2Mon1:4711.52:0511.87:52-0.68:23-1.27:114:07Waning Gibbous2Mon
3Tue2:4311.33:0411.08:51-0.39:18-0.57:114:08Third Quarter3Tue
4Wed3:4011.04:0510.39:520.110:140.17:114:09Third Quarter4Wed
5Thu4:3810.75:079.710:550.511:130.77:114:10Third Quarter5Thu
6Fri5:3610.46:089.311:570.77:114:11Third Quarter6Fri
7Sat6:3210.37:079.012:111.212:560.87:114:12Waning Crescent7Sat
8Sun7:2610.28:038.91:061.41:510.87:114:13Waning Crescent8Sun
9Mon8:1710.28:539.01:591.52:410.77:104:14Waning Crescent9Mon
10Tue9:0410.39:399.12:471.53:270.57:104:15Waning Crescent10Tue
11Wed9:4610.410:209.23:301.54:080.47:104:16New Moon11Wed
12Thu10:2510.510:599.44:111.34:470.37:094:17New Moon12Thu
13Fri11:0110.511:349.54:491.25:230.27:094:19New Moon13Fri
14Sat11:3510.55:251.25:570.27:094:20New Moon14Sat
15Sun12:079.512:0710.46:011.16:310.37:084:21Waxing Crescent15Sun
16Mon12:389.612:4010.26:381.17:040.47:084:22Waxing Crescent16Mon
17Tue1:109.71:1710.07:161.17:380.67:074:24Waxing Crescent17Tue
18Wed1:459.81:579.87:561.18:160.77:064:25Waxing Crescent18Wed
19Thu2:259.92:429.68:411.18:580.97:064:26First Quarter19Thu
20Fri3:1010.03:349.39:321.19:471.17:054:27First Quarter20Fri
21Sat4:0110.24:329.210:300.910:431.17:044:29First Quarter21Sat
22Sun4:5910.45:379.211:340.711:451.17:044:30First Quarter22Sun
23Mon6:0210.76:479.412:400.27:034:31Waxing Gibbous23Mon
24Tue7:0811.27:559.812:490.81:44-0.37:024:33Waxing Gibbous24Tue
25Wed8:1311.78:5910.41:540.42:45-0.97:014:34Waxing Gibbous25Wed
26Thu9:1512.39:5611.02:56-0.23:42-1.57:004:35Full Moon26Thu
27Fri10:1212.710:4911.53:54-0.74:36-1.96:594:37Full Moon27Fri
28Sat11:0612.811:4111.84:50-1.15:27-2.06:584:38Full Moon28Sat
29Sun11:5912.65:45-1.26:18-1.96:574:39Waning Gibbous29Sun
30Mon12:3211.912:5212.26:39-1.27:08-1.56:564:41Waning Gibbous30Mon
31Tue1:2311.81:4511.67:32-0.97:57-1.06:554:42Waning 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 5:07 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 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 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 (13% 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