Tides Today & Tomorrow in Islesboro, ME

TIDE TIMES for Monday, June 29, 2026
The tide is currently rising in Islesboro, ME.
Next low tide (tomorrow) : 6:10 am (0.4 ft)
Next high tide : in 27m at 11:43 pm (10.3 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 4:54 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8414888
Common Questions About Tides

Islesboro, ME Tides - Aug 2009

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:378.68:509.92:241.02:311.95:238:00Waxing Gibbous1Sat
2Sun9:308.79:4110.03:170.93:231.85:247:59Waxing Gibbous2Sun
3Mon10:188.810:2610.24:050.84:091.75:257:58Waxing Gibbous3Mon
4Tue11:009.011:0710.34:490.64:521.55:267:56Full Moon4Tue
5Wed11:399.211:4410.45:280.55:311.35:287:55Full Moon5Wed
6Thu12:149.46:040.46:081.25:297:54Full Moon6Thu
7Fri12:1810.412:479.66:380.46:441.15:307:52Full Moon7Fri
8Sat12:5110.31:179.77:100.47:191.05:317:51Waning Gibbous8Sat
9Sun1:2410.11:479.87:420.67:560.95:327:49Waning Gibbous9Sun
10Mon1:589.92:209.98:140.78:350.95:337:48Waning Gibbous10Mon
11Tue2:369.72:5710.08:500.99:170.95:347:46Waning Gibbous11Tue
12Wed3:199.43:4010.09:301.210:051.05:367:45Third Quarter12Wed
13Thu4:089.14:2910.110:161.411:001.05:377:43Third Quarter13Thu
14Fri5:048.95:2610.211:101.55:387:42Third Quarter14Fri
15Sat6:088.86:3010.412:030.912:121.55:397:40Waning Crescent15Sat
16Sun7:189.07:3810.81:110.61:191.35:407:39Waning Crescent16Sun
17Mon8:289.48:4611.32:170.12:260.85:417:37Waning Crescent17Mon
18Tue9:3310.09:5011.83:20-0.53:300.25:427:36Waning Crescent18Tue
19Wed10:3010.710:4812.34:17-1.04:30-0.45:447:34New Moon19Wed
20Thu11:2311.311:4212.55:10-1.55:26-0.95:457:32New Moon20Thu
21Fri12:1411.86:01-1.76:20-1.35:467:31New Moon21Fri
22Sat12:3412.41:0312.06:50-1.67:13-1.35:477:29Waxing Crescent22Sat
23Sun1:2612.01:5211.97:39-1.38:06-1.15:487:27Waxing Crescent23Sun
24Mon2:1911.42:4211.68:27-0.78:59-0.75:497:26Waxing Crescent24Mon
25Tue3:1110.73:3311.19:160.09:52-0.15:517:24First Quarter25Tue
26Wed4:079.94:2610.510:070.810:500.55:527:22First Quarter26Wed
27Thu5:059.25:2410.011:031.411:511.05:537:21First Quarter27Thu
28Fri6:078.76:259.612:031.95:547:19First Quarter28Fri
29Sat7:098.47:249.512:531.31:042.25:557:17Waxing Gibbous29Sat
30Sun8:078.48:219.51:531.42:022.25:567:15Waxing Gibbous30Sun
31Mon9:008.59:129.72:461.32:552.05:577:14Waxing Gibbous31Mon
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 2:56 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 100% 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 Full Moon (100% 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