Tides Today & Tomorrow in Deer Isle, Stonington, ME

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently falling in Deer Isle, Stonington, ME.
Next low tide : in 2h 40m at 9:41 am (0.8 ft)
Next high tide : 3:54 pm (10.0 ft)
Sunset today : 7:34 pm
Sunrise tomorrow : 5:41 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8414348
Common Questions About Tides

Deer Isle, Stonington, ME Tides - Sep 1929

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:339.79:5011.23:20-0.43:350.45:577:12Waning Crescent1Sun
2Mon10:2910.110:4611.54:17-0.74:320.05:587:10New Moon2Mon
3Tue11:2110.611:3911.65:10-1.05:26-0.35:597:08New Moon3Tue
4Wed12:1010.85:59-1.06:18-0.56:007:06New Moon4Wed
5Thu12:2911.412:5710.96:46-0.87:07-0.56:017:04Waxing Crescent5Thu
6Fri1:1811.11:4210.87:32-0.57:56-0.36:037:03Waxing Crescent6Fri
7Sat2:0610.62:2810.68:180.08:450.06:047:01Waxing Crescent7Sat
8Sun2:5510.03:1510.29:040.69:360.46:056:59Waxing Crescent8Sun
9Mon3:469.34:039.89:521.210:280.86:066:57First Quarter9Mon
10Tue4:408.84:569.410:431.711:241.26:076:55First Quarter10Tue
11Wed5:388.35:529.111:382.06:086:53First Quarter11Wed
12Thu6:388.16:519.012:231.412:372.26:096:52First Quarter12Thu
13Fri7:378.17:499.01:221.41:362.16:116:50Waxing Gibbous13Fri
14Sat8:318.38:429.32:171.32:301.96:126:48Waxing Gibbous14Sat
15Sun9:208.69:309.63:071.03:191.66:136:46Waxing Gibbous15Sun
16Mon10:028.910:139.93:520.74:031.26:146:44Waxing Gibbous16Mon
17Tue10:419.310:5210.24:310.44:430.96:156:42Full Moon17Tue
18Wed11:179.711:3010.45:080.25:210.66:166:40Full Moon18Wed
19Thu11:5210.15:430.15:580.36:176:39Full Moon19Thu
20Fri12:0710.512:2710.46:180.06:370.06:196:37Full Moon20Fri
21Sat12:4610.41:0410.76:540.07:17-0.16:206:35Waning Gibbous21Sat
22Sun1:2710.31:4310.87:330.28:01-0.26:216:33Waning Gibbous22Sun
23Mon2:1110.12:2710.88:150.48:49-0.16:226:31Waning Gibbous23Mon
24Tue3:009.73:1710.69:020.79:430.06:236:29Third Quarter24Tue
25Wed3:559.34:1310.49:571.010:430.26:246:27Third Quarter25Wed
26Thu4:589.05:1710.210:591.211:500.46:266:25Third Quarter26Thu
27Fri6:078.96:2710.112:081.36:276:24Third Quarter27Fri
28Sat7:179.07:3710.21:000.31:201.26:286:22Waning Crescent28Sat
29Sun7:239.47:4310.51:070.11:270.85:295:20Waning Crescent29Sun
30Mon8:229.98:4110.82:08-0.22:280.35:305:18Waning Crescent30Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8414348)

Common Questions About Deer Isle, Stonington, ME Tides

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What time does the tide turn (slack tide) in Deer Isle, Stonington, ME today?

Slack tide in Deer Isle, Stonington, ME is approximately 12:47 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 Deer Isle, Stonington, ME?

Deer Isle, Stonington, ME is currently in a transitional phase. Tonight's moon is 36% 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 shifting between spring and neap.

What datum are Deer Isle, Stonington, 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 Deer Isle, Stonington, ME?

Tide predictions for Deer Isle, Stonington, 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 Deer Isle, Stonington, ME?

Tide data for Deer Isle, Stonington, ME is sourced from NOAA Station #8414348. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8414348.

What is the moon phase in Deer Isle, Stonington, ME tonight?

Tonight the moon over Deer Isle, Stonington, ME is First Quarter (36% illuminated). This places Deer Isle, Stonington, ME in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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