Tides Today & Tomorrow in Boothbay Harbor, ME

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Boothbay Harbor, ME.
Next low tide : 12:18 pm (2.0 ft)
Next high tide : in 1h 51m at 6:29 am (7.5 ft)
Sunset today : 7:33 pm
Sunrise tomorrow : 5:49 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8416828
Common Questions About Tides

Boothbay Harbor, ME Tides - Nov 1918

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:079.29:348.72:540.93:230.46:134:30Waning Crescent1Fri
2Sat9:449.410:148.73:310.94:010.36:154:29New Moon2Sat
3Sun10:209.510:528.74:060.94:370.26:164:27New Moon3Sun
4Mon10:549.511:298.64:411.05:120.26:174:26New Moon4Mon
5Tue11:289.55:151.15:470.26:194:25New Moon5Tue
6Wed12:058.512:039.45:501.26:230.26:204:23Waxing Crescent6Wed
7Thu12:418.312:409.36:271.37:020.36:214:22Waxing Crescent7Thu
8Fri1:208.21:209.37:071.37:440.46:234:21Waxing Crescent8Fri
9Sat2:028.12:059.17:521.48:300.56:244:20Waxing Crescent9Sat
10Sun2:508.12:579.18:431.49:210.56:254:19First Quarter10Sun
11Mon3:438.33:549.09:401.310:150.56:274:17First Quarter11Mon
12Tue4:388.64:559.010:401.111:110.46:284:16First Quarter12Tue
13Wed5:359.05:589.111:420.76:294:15Waxing Gibbous13Wed
14Thu6:339.57:019.312:090.212:460.16:314:14Waxing Gibbous14Thu
15Fri7:2910.28:029.61:07-0.11:46-0.56:324:13Waxing Gibbous15Fri
16Sat8:2210.78:589.92:03-0.32:43-1.16:334:12Waxing Gibbous16Sat
17Sun9:1411.29:5310.02:56-0.53:36-1.66:354:11Full Moon17Sun
18Mon10:0611.410:4710.03:48-0.74:29-1.86:364:11Full Moon18Mon
19Tue10:5811.411:409.94:40-0.65:22-1.86:374:10Full Moon19Tue
20Wed11:5011.25:33-0.56:14-1.56:384:09Waning Gibbous20Wed
21Thu12:339.712:4310.86:25-0.27:07-1.16:404:08Waning Gibbous21Thu
22Fri1:269.41:3710.37:190.28:01-0.66:414:07Waning Gibbous22Fri
23Sat2:229.12:349.78:160.68:57-0.16:424:07Third Quarter23Sat
24Sun3:208.83:339.19:161.09:540.46:434:06Third Quarter24Sun
25Mon4:178.64:338.710:181.210:500.86:454:05Third Quarter25Mon
26Tue5:138.55:338.311:201.311:451.16:464:05Third Quarter26Tue
27Wed6:088.66:338.112:221.36:474:04Waning Crescent27Wed
28Thu7:008.77:298.112:391.21:191.16:484:04Waning Crescent28Thu
29Fri7:478.98:198.11:301.32:090.86:494:03Waning Crescent29Fri
30Sat8:319.19:048.22:151.32:540.66:514:03Waning Crescent30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8416828)

Common Questions About Boothbay Harbor, ME Tides

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What time does the tide turn (slack tide) in Boothbay Harbor, ME today?

Slack tide in Boothbay Harbor, ME is approximately 9:23 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 Boothbay Harbor, ME?

Boothbay Harbor, ME is currently in a transitional phase. Tonight's moon is 65% 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 Boothbay Harbor, 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 Boothbay Harbor, ME?

Tide predictions for Boothbay Harbor, 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 Boothbay Harbor, ME?

Tide data for Boothbay Harbor, ME is sourced from NOAA Station #8416828. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8416828.

What is the moon phase in Boothbay Harbor, ME tonight?

Tonight the moon over Boothbay Harbor, ME is First Quarter (65% illuminated). This places Boothbay Harbor, 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