Tides Today & Tomorrow in Islesboro, ME

TIDE TIMES for Sunday, August 16, 2026
The tide is currently rising in Islesboro, ME.
Next low tide : 8:41 pm (-0.2 ft)
Next high tide : in 4h 21m at 2:30 pm (11.1 ft)
Sunset today : 7:39 pm
Sunrise tomorrow : 5:40 am
Moon phase : Waxing Crescent (18% illuminated)
Tide Station Location : Station #8414888
Common Questions About Tides

Islesboro, ME Tides - Dec 1943

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:0010.62:1011.78:020.28:42-1.07:504:58Waxing Crescent1Wed
2Thu2:5510.53:0611.48:570.39:37-0.87:514:58Waxing Crescent2Thu
3Fri3:5410.44:0811.09:570.510:37-0.57:524:57First Quarter3Fri
4Sat4:5810.35:1610.711:030.611:41-0.27:544:57First Quarter4Sat
5Sun6:0410.56:2710.412:140.57:554:57First Quarter5Sun
6Mon7:0710.77:3410.412:45-0.11:210.37:564:57Waxing Gibbous6Mon
7Tue8:0711.08:3710.41:460.02:24-0.17:574:57Waxing Gibbous7Tue
8Wed9:0311.39:3510.52:430.03:22-0.57:584:56Waxing Gibbous8Wed
9Thu9:5511.610:2810.53:370.04:14-0.77:594:56Waxing Gibbous9Thu
10Fri10:4311.711:1710.54:270.05:04-0.97:594:56Full Moon10Fri
11Sat11:2911.65:140.25:50-0.98:004:56Full Moon11Sat
12Sun12:0310.412:1211.45:580.46:34-0.78:014:56Full Moon12Sun
13Mon12:4810.212:5311.16:410.67:16-0.48:024:57Waning Gibbous13Mon
14Tue1:319.91:3310.77:231.07:58-0.18:034:57Waning Gibbous14Tue
15Wed2:139.62:1210.38:041.38:380.38:044:57Waning Gibbous15Wed
16Thu2:549.32:529.98:461.69:190.78:044:57Waning Gibbous16Thu
17Fri3:369.13:339.59:291.910:011.08:054:57Waning Gibbous17Fri
18Sat4:198.94:189.110:152.110:451.38:064:58Third Quarter18Sat
19Sun5:048.85:088.911:062.211:321.58:064:58Third Quarter19Sun
20Mon5:528.96:028.712:012.18:074:58Third Quarter20Mon
21Tue6:409.16:588.812:211.612:571.88:084:59Third Quarter21Tue
22Wed7:279.57:538.91:111.51:491.48:084:59Waning Crescent22Wed
23Thu8:1510.08:469.21:591.32:400.98:095:00Waning Crescent23Thu
24Fri9:0210.59:389.62:481.13:300.28:095:00Waning Crescent24Fri
25Sat9:5011.110:2710.13:360.74:18-0.48:095:01New Moon25Sat
26Sun10:3811.711:1610.54:250.35:06-1.08:105:02New Moon26Sun
27Mon11:2512.15:130.05:55-1.48:105:02New Moon27Mon
28Tue12:0510.812:1512.46:03-0.36:44-1.68:105:03New Moon28Tue
29Wed12:5511.01:0612.46:55-0.47:35-1.78:115:04Waxing Crescent29Wed
30Thu1:4811.12:0012.27:49-0.48:28-1.68:115:05Waxing Crescent30Thu
31Fri2:4211.12:5711.98:46-0.39:24-1.28:115:05Waxing Crescent31Fri
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 5:35 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 18% 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 (18% 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