Tides Today & Tomorrow in Islesboro, ME

TIDE TIMES for Thursday, August 6, 2026
The tide is currently rising in Islesboro, ME.
Next low tide : 11:47 pm (0.6 ft)
Next high tide : in 34m at 5:13 pm (10.5 ft)
Sunset today : 7:54 pm
Sunrise tomorrow : 5:29 am
Moon phase : Third Quarter (44% illuminated)
Tide Station Location : Station #8414888
Common Questions About Tides

Islesboro, ME Tides - Jan 1959

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:4810.33:0510.39:010.69:270.17:114:06Third Quarter1Thu
2Fri3:4310.54:0610.110:010.610:240.27:114:07Third Quarter2Fri
3Sat4:4210.75:129.911:060.411:250.37:114:08Third Quarter3Sat
4Sun5:4510.96:2210.012:130.17:114:09Waning Crescent4Sun
5Mon6:4911.37:3010.112:280.31:18-0.47:114:10Waning Crescent5Mon
6Tue7:5211.78:3410.41:310.12:19-0.87:114:11Waning Crescent6Tue
7Wed8:5212.19:3210.82:32-0.13:17-1.37:114:12New Moon7Wed
8Thu9:4712.310:2611.03:29-0.34:11-1.57:114:13New Moon8Thu
9Fri10:4012.411:1711.14:23-0.55:03-1.67:104:14New Moon9Fri
10Sat11:3012.35:15-0.55:52-1.57:104:16New Moon10Sat
11Sun12:0711.112:2011.96:06-0.36:40-1.27:104:17Waxing Crescent11Sun
12Mon12:5510.91:0811.46:56-0.17:27-0.77:094:18Waxing Crescent12Mon
13Tue1:4310.61:5610.87:440.38:12-0.27:094:19Waxing Crescent13Tue
14Wed2:3010.32:4410.18:330.78:570.47:084:20Waxing Crescent14Wed
15Thu3:179.93:339.59:231.29:431.07:084:21First Quarter15Thu
16Fri4:069.64:269.010:161.510:321.57:074:23First Quarter16Fri
17Sat4:569.45:228.611:121.711:231.87:074:24First Quarter17Sat
18Sun5:479.36:188.412:071.77:064:25First Quarter18Sun
19Mon6:379.47:128.512:151.91:011.57:064:26Waxing Gibbous19Mon
20Tue7:279.68:048.61:061.91:521.37:054:28Waxing Gibbous20Tue
21Wed8:149.98:518.91:551.82:380.97:044:29Waxing Gibbous21Wed
22Thu8:5810.29:349.32:411.53:220.57:034:30Waxing Gibbous22Thu
23Fri9:3910.610:149.73:241.24:030.17:034:32Full Moon23Fri
24Sat10:1811.010:5210.04:060.84:42-0.37:024:33Full Moon24Sat
25Sun10:5811.311:3010.44:480.55:22-0.67:014:34Full Moon25Sun
26Mon11:3811.45:310.26:02-0.77:004:36Waning Gibbous26Mon
27Tue12:1010.712:2211.46:150.06:44-0.86:594:37Waning Gibbous27Tue
28Wed12:5310.91:0811.37:02-0.27:29-0.76:584:38Waning Gibbous28Wed
29Thu1:3911.01:5711.07:51-0.28:16-0.56:574:40Waning Gibbous29Thu
30Fri2:2811.12:5110.68:45-0.19:07-0.26:564:41Third Quarter30Fri
31Sat3:2211.03:5210.29:440.010:040.26:554:43Third Quarter31Sat
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 8:30 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 neap phase. Tonight's moon is 44% 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 minimum.

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 Third Quarter (44% illuminated). This places Islesboro, ME in a neap tide cycle, so tidal ranges are near their weekly minimum 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