Tides Today & Tomorrow in Islesboro, ME

TIDE TIMES for Wednesday, August 12, 2026
The tide is currently rising in Islesboro, ME.
Next low tide (tomorrow) : 5:53 am (-1.4 ft)
Next high tide : in 5h 23m at 11:31 pm (12.2 ft)
Sunset today : 7:45 pm
Sunrise tomorrow : 5:35 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #8414888
Common Questions About Tides

Islesboro, ME Tides - Dec 1948

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed10:5512.011:3510.44:400.15:21-1.36:513:58New Moon1Wed
2Thu11:4111.75:280.36:09-1.06:523:58Waxing Crescent2Thu
3Fri12:2310.112:2711.36:160.76:56-0.56:533:57Waxing Crescent3Fri
4Sat1:129.71:1410.77:031.17:430.06:543:57Waxing Crescent4Sat
5Sun2:009.32:0110.27:511.68:310.56:553:57Waxing Crescent5Sun
6Mon2:509.02:509.68:401.99:191.06:563:57First Quarter6Mon
7Tue3:418.73:439.29:322.210:091.36:573:56First Quarter7Tue
8Wed4:328.64:388.910:292.310:591.66:583:56First Quarter8Wed
9Thu5:228.75:338.711:262.311:481.76:593:56First Quarter9Thu
10Fri6:098.96:268.612:202.07:003:56Waxing Gibbous10Fri
11Sat6:539.27:178.712:341.81:101.77:013:56Waxing Gibbous11Sat
12Sun7:359.68:068.81:181.71:561.27:023:56Waxing Gibbous12Sun
13Mon8:1610.08:519.12:011.62:410.77:033:57Waxing Gibbous13Mon
14Tue8:5610.49:349.32:431.43:240.37:033:57Full Moon14Tue
15Wed9:3610.810:169.53:251.24:06-0.17:043:57Full Moon15Wed
16Thu10:1811.110:599.74:071.04:50-0.47:053:57Full Moon16Thu
17Fri11:0111.411:449.94:520.95:35-0.77:063:58Full Moon17Fri
18Sat11:4811.55:380.76:22-0.87:063:58Waning Gibbous18Sat
19Sun12:319.912:3711.56:270.77:11-0.77:073:58Waning Gibbous19Sun
20Mon1:2210.01:3011.37:200.78:02-0.67:073:59Waning Gibbous20Mon
21Tue2:1610.12:2611.08:170.78:56-0.47:083:59Third Quarter21Tue
22Wed3:1310.23:2810.69:180.79:53-0.17:084:00Third Quarter22Wed
23Thu4:1410.34:3510.210:240.710:530.17:094:00Third Quarter23Thu
24Fri5:1510.65:4310.011:320.511:540.37:094:01Third Quarter24Fri
25Sat6:1610.86:509.912:380.17:104:01Waning Crescent25Sat
26Sun7:1411.17:529.912:530.51:39-0.27:104:02Waning Crescent26Sun
27Mon8:1011.48:519.91:500.52:36-0.57:104:03Waning Crescent27Mon
28Tue9:0311.59:4410.02:450.63:30-0.77:114:04New Moon28Tue
29Wed9:5311.610:3410.03:370.64:20-0.87:114:04New Moon29Wed
30Thu10:4011.511:219.94:260.75:07-0.77:114:05New Moon30Thu
31Fri11:2511.35:120.85:52-0.57:114:06New Moon31Fri
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 2:42 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 0% 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 (0% 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