Tides Today & Tomorrow in Islesboro, ME

TIDE TIMES for Thursday, July 16, 2026
The tide is currently falling in Islesboro, ME.
Next low tide : in 3h 10m at 7:17 pm (-0.5 ft)
Next high tide (tomorrow) : 1:31 am (12.2 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 5:07 am
Moon phase : Waxing Crescent (7% illuminated)
Tide Station Location : Station #8414888
Common Questions About Tides

Islesboro, ME Tides - Apr 1986

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:2211.04:159.49:57-0.110:121.25:166:02Third Quarter1Tue
2Wed4:3210.65:289.211:080.211:261.45:156:03Third Quarter2Wed
3Thu5:4610.46:389.312:190.35:136:04Waning Crescent3Thu
4Fri6:5710.47:419.612:381.31:230.35:116:06Waning Crescent4Fri
5Sat8:0010.58:3610.01:441.02:200.15:096:07Waning Crescent5Sat
6Sun8:5610.79:2510.42:410.63:110.05:076:08Waning Crescent6Sun
7Mon9:4510.710:0910.73:320.33:560.05:066:09New Moon7Mon
8Tue10:3010.710:4910.84:170.04:370.15:046:11New Moon8Tue
9Wed11:1110.511:2610.74:59-0.15:150.35:026:12New Moon9Wed
10Thu11:5010.25:39-0.15:510.65:006:13New Moon10Thu
11Fri12:0010.612:289.96:170.16:251.04:586:14Waxing Crescent11Fri
12Sat12:3210.31:049.46:530.37:001.44:576:15Waxing Crescent12Sat
13Sun1:0510.01:409.07:310.77:351.84:556:17Waxing Crescent13Sun
14Mon1:399.72:198.68:101.08:132.24:536:18Waxing Crescent14Mon
15Tue2:189.43:028.28:531.48:572.54:526:19First Quarter15Tue
16Wed3:049.13:538.09:431.79:482.74:506:20First Quarter16Wed
17Thu3:578.94:528.010:401.810:482.74:486:22First Quarter17Thu
18Fri4:578.95:538.211:391.711:512.44:466:23First Quarter18Fri
19Sat6:009.16:488.712:341.44:456:24Waxing Gibbous19Sat
20Sun6:599.57:389.312:501.91:251.04:436:25Waxing Gibbous20Sun
21Mon7:5510.08:2510.11:451.22:130.54:416:26Waxing Gibbous21Mon
22Tue8:4710.59:1010.92:360.42:590.04:406:28Waxing Gibbous22Tue
23Wed9:3710.99:5511.73:26-0.43:44-0.34:386:29Full Moon23Wed
24Thu10:2511.210:4012.24:14-1.14:30-0.64:376:30Full Moon24Thu
25Fri11:1511.311:2712.55:03-1.65:17-0.64:356:31Full Moon25Fri
26Sat12:0611.25:54-1.86:06-0.44:346:33Waning Gibbous26Sat
27Sun12:1712.52:0010.97:47-1.77:59-0.15:327:34Waning Gibbous27Sun
28Mon2:1112.22:5710.58:43-1.48:550.35:317:35Waning Gibbous28Mon
29Tue3:0911.74:0010.09:42-0.99:560.85:297:36Third Quarter29Tue
30Wed4:1311.15:089.710:46-0.311:051.15:287:37Third Quarter30Wed
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 10:24 pm — 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 7% 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 Waxing Crescent (7% 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