Tides Today & Tomorrow in Islesboro, ME

TIDE TIMES for Thursday, July 30, 2026
The tide is currently rising in Islesboro, ME.
Next low tide : 6:21 pm (1.2 ft)
Next high tide : in 1h 30m at 12:29 pm (9.4 ft)
Sunset today : 8:03 pm
Sunrise tomorrow : 5:21 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #8414888
Common Questions About Tides

Islesboro, ME Tides - Jun 1973

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:3410.911:4512.75:22-1.75:31-0.44:548:12New Moon1Fri
2Sat12:2911.16:16-1.96:26-0.54:548:13New Moon2Sat
3Sun12:4012.71:2511.17:11-2.07:23-0.54:538:14Waxing Crescent3Sun
4Mon1:3712.52:2211.08:07-1.88:22-0.34:538:14Waxing Crescent4Mon
5Tue2:3512.13:2010.99:02-1.49:220.04:528:15Waxing Crescent5Tue
6Wed3:3611.54:2010.89:59-0.910:240.24:528:16First Quarter6Wed
7Thu4:3910.95:2010.610:58-0.411:290.54:528:16First Quarter7Thu
8Fri5:4310.36:1910.511:570.14:518:17First Quarter8Fri
9Sat6:459.97:1610.512:340.612:550.64:518:18First Quarter9Sat
10Sun7:459.58:0910.41:340.61:500.94:518:18Waxing Gibbous10Sun
11Mon8:429.39:0010.42:310.52:421.14:518:19Waxing Gibbous11Mon
12Tue9:359.39:4710.43:220.53:301.34:518:19Waxing Gibbous12Tue
13Wed10:239.210:3110.44:100.44:151.44:518:20Waxing Gibbous13Wed
14Thu11:079.211:1110.54:540.34:571.44:518:20Full Moon14Thu
15Fri11:489.211:4910.45:350.35:361.54:518:21Full Moon15Fri
16Sat12:269.26:140.36:141.54:518:21Full Moon16Sat
17Sun12:2410.41:039.26:510.36:511.64:518:22Full Moon17Sun
18Mon12:5910.31:389.17:280.47:281.64:518:22Waning Gibbous18Mon
19Tue1:3310.12:139.18:030.58:071.74:518:22Waning Gibbous19Tue
20Wed2:0910.02:479.18:390.78:471.74:518:23Waning Gibbous20Wed
21Thu2:489.83:259.29:150.89:301.74:518:23Waning Gibbous21Thu
22Fri3:319.64:069.49:550.910:181.64:518:23Third Quarter22Fri
23Sat4:199.44:529.610:391.011:111.44:528:23Third Quarter23Sat
24Sun5:129.35:4410.011:291.14:528:23Third Quarter24Sun
25Mon6:119.26:3910.412:091.112:231.04:528:23Waning Crescent25Mon
26Tue7:139.37:3610.91:100.61:200.94:538:23Waning Crescent26Tue
27Wed8:189.68:3711.42:110.02:190.64:538:23Waning Crescent27Wed
28Thu9:2210.09:3712.03:12-0.63:190.34:548:23Waning Crescent28Thu
29Fri10:2310.410:3612.44:10-1.24:18-0.14:548:23New Moon29Fri
30Sat11:2010.811:3312.75:07-1.65:16-0.44:558:23New Moon30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8414888)

Common Questions About Islesboro, ME Tides

Show All
What time does the tide turn (slack tide) in Islesboro, ME today?

Slack tide in Islesboro, ME is approximately 3:25 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 99% 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 (99% 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