Tides Today & Tomorrow in Boothbay Harbor, ME

TIDE TIMES for Thursday, August 20, 2026
The tide is currently falling in Boothbay Harbor, ME.
Next low tide : in 4h 44m at 11:22 am (1.7 ft)
Next high tide : 5:45 pm (8.7 ft)
Sunset today : 7:35 pm
Sunrise tomorrow : 5:48 am
Moon phase : First Quarter (55% illuminated)
Tide Station Location : Station #8416828
Common Questions About Tides

Boothbay Harbor, ME Tides - Nov 1920

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:559.42:0810.47:510.18:33-0.76:144:29Third Quarter1Mon
2Tue2:559.23:1110.08:510.49:34-0.46:154:28Third Quarter2Tue
3Wed3:599.14:189.79:570.510:38-0.16:174:27Third Quarter3Wed
4Thu5:049.15:269.411:050.611:430.06:184:25Third Quarter4Thu
5Fri6:089.36:339.312:150.56:194:24Waning Crescent5Fri
6Sat7:099.57:369.312:460.11:200.26:214:23Waning Crescent6Sat
7Sun8:049.88:339.41:440.12:18-0.16:224:21Waning Crescent7Sun
8Mon8:5310.09:249.42:360.13:10-0.46:234:20Waning Crescent8Mon
9Tue9:3910.110:119.33:230.23:57-0.56:254:19New Moon9Tue
10Wed10:2210.110:569.24:070.34:41-0.56:264:18New Moon10Wed
11Thu11:0210.011:389.04:480.45:22-0.46:274:17New Moon11Thu
12Fri11:419.95:280.66:01-0.26:294:16Waxing Crescent12Fri
13Sat12:188.812:209.66:060.96:400.06:304:15Waxing Crescent13Sat
14Sun12:578.612:599.46:451.17:190.36:314:14Waxing Crescent14Sun
15Mon1:398.41:409.17:261.38:010.66:334:13Waxing Crescent15Mon
16Tue2:228.22:258.88:111.68:450.86:344:12Waxing Crescent16Tue
17Wed3:098.03:148.59:001.79:321.06:354:11First Quarter17Wed
18Thu3:588.04:068.39:511.810:211.16:374:10First Quarter18Thu
19Fri4:488.15:008.210:451.711:101.16:384:09First Quarter19Fri
20Sat5:388.35:558.211:411.56:394:08First Quarter20Sat
21Sun6:278.76:518.412:011.112:371.16:404:08Waxing Gibbous21Sun
22Mon7:169.27:448.712:530.91:300.56:424:07Waxing Gibbous22Mon
23Tue8:039.78:349.01:420.62:20-0.16:434:06Waxing Gibbous23Tue
24Wed8:4810.39:239.32:300.23:08-0.76:444:06Full Moon24Wed
25Thu9:3510.710:129.63:17-0.13:56-1.26:454:05Full Moon25Thu
26Fri10:2311.111:029.84:06-0.44:45-1.56:474:04Full Moon26Fri
27Sat11:1211.311:539.94:55-0.65:35-1.76:484:04Waning Gibbous27Sat
28Sun12:0411.25:47-0.66:27-1.66:494:03Waning Gibbous28Sun
29Mon12:469.912:5811.06:40-0.57:20-1.46:504:03Waning Gibbous29Mon
30Tue1:419.81:5510.67:37-0.28:17-1.16:514:02Waning Gibbous30Tue
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 2:33 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 Boothbay Harbor, ME?

Boothbay Harbor, ME is currently in a neap phase. Tonight's moon is 55% 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 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 (55% illuminated). This places Boothbay Harbor, 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