Tides Today & Tomorrow in Islesboro, ME

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently falling in Islesboro, ME.
Next low tide : in 4h 12m at 6:20 pm (-0.4 ft)
Next high tide (tomorrow) : 12:36 am (12.5 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 5:06 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8414888
Common Questions About Tides

Islesboro, ME Tides - Aug 1987

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:309.33:559.69:451.210:151.35:228:01First Quarter1Sat
2Sun4:179.14:419.810:291.411:081.25:238:00First Quarter2Sun
3Mon5:118.95:3410.011:191.55:247:58First Quarter3Mon
4Tue6:118.86:3310.312:081.012:161.65:267:57Waxing Gibbous4Tue
5Wed7:178.97:3610.71:120.71:191.45:277:56Waxing Gibbous5Wed
6Thu8:269.18:4211.22:170.22:231.15:287:54Waxing Gibbous6Thu
7Fri9:329.69:4511.73:19-0.33:260.65:297:53Waxing Gibbous7Fri
8Sat10:3110.210:4512.24:18-0.94:270.05:307:52Full Moon8Sat
9Sun11:2610.811:4112.55:14-1.45:24-0.55:317:50Full Moon9Sun
10Mon12:1911.36:06-1.76:20-0.85:327:49Full Moon10Mon
11Tue12:3512.51:1111.66:57-1.77:16-1.05:347:47Waning Gibbous11Tue
12Wed1:2912.32:0211.77:48-1.58:10-0.95:357:46Waning Gibbous12Wed
13Thu2:2311.72:5311.58:37-1.09:05-0.65:367:44Waning Gibbous13Thu
14Fri3:1811.03:4511.29:27-0.410:01-0.25:377:43Third Quarter14Fri
15Sat4:1410.34:3910.710:190.411:000.35:387:41Third Quarter15Sat
16Sun5:149.55:3610.311:151.15:397:40Third Quarter16Sun
17Mon6:169.06:359.912:010.712:141.75:407:38Third Quarter17Mon
18Tue7:188.67:349.71:041.01:142.05:427:37Waning Crescent18Tue
19Wed8:178.58:309.62:031.22:122.15:437:35Waning Crescent19Wed
20Thu9:128.59:229.82:581.13:052.05:447:33Waning Crescent20Thu
21Fri10:018.710:0910.03:481.03:531.95:457:32Waning Crescent21Fri
22Sat10:448.910:5110.24:320.84:361.65:467:30New Moon22Sat
23Sun11:229.211:2810.35:110.65:151.35:477:29New Moon23Sun
24Mon11:579.45:470.55:521.15:497:27New Moon24Mon
25Tue12:0310.412:299.66:210.46:280.95:507:25New Moon25Tue
26Wed12:3610.312:599.86:530.47:030.85:517:23Waxing Crescent26Wed
27Thu1:0810.21:299.97:240.57:390.75:527:22Waxing Crescent27Thu
28Fri1:4310.02:0210.07:570.78:180.75:537:20Waxing Crescent28Fri
29Sat2:219.72:3810.18:320.98:590.75:547:18Waxing Crescent29Sat
30Sun3:039.43:2010.19:111.29:460.85:557:16First Quarter30Sun
31Mon3:519.14:0910.19:561.410:410.95:577:15First Quarter31Mon
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 9:28 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 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