Tides Today & Tomorrow in Boothbay Harbor, ME

TIDE TIMES for Thursday, August 20, 2026
The tide is currently rising in Boothbay Harbor, ME.
Next low tide : 11:22 am (1.7 ft)
Next high tide : in 2h 20m at 5:30 am (7.8 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 - Apr 1921

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:208.36:067.711:451.25:206:04Third Quarter1Fri
2Sat6:218.27:037.912:031.812:441.25:186:05Waning Crescent2Sat
3Sun7:188.37:548.21:031.61:381.15:166:07Waning Crescent3Sun
4Mon8:098.58:388.51:561.32:230.85:146:08Waning Crescent4Mon
5Tue8:558.89:188.92:420.93:030.65:136:09Waning Crescent5Tue
6Wed9:369.09:559.33:220.53:390.45:116:10New Moon6Wed
7Thu10:169.210:319.64:010.14:150.25:096:11New Moon7Thu
8Fri10:559.311:069.94:38-0.24:510.15:076:13New Moon8Fri
9Sat11:339.411:4310.15:17-0.55:290.05:066:14New Moon9Sat
10Sun12:139.45:57-0.76:090.05:046:15Waxing Crescent10Sun
11Mon12:2210.212:559.36:39-0.86:520.05:026:16Waxing Crescent11Mon
12Tue1:0510.21:429.27:25-0.77:390.25:006:17Waxing Crescent12Tue
13Wed1:5310.12:349.08:16-0.68:320.44:596:19First Quarter13Wed
14Thu2:479.93:348.89:13-0.49:310.64:576:20First Quarter14Thu
15Fri3:499.74:378.810:13-0.210:350.74:556:21First Quarter15Fri
16Sat4:559.55:438.911:18-0.111:430.64:546:22First Quarter16Sat
17Sun6:049.56:499.212:24-0.14:526:23Waxing Gibbous17Sun
18Mon7:139.67:499.612:530.31:27-0.24:506:25Waxing Gibbous18Mon
19Tue8:159.88:4410.11:57-0.12:24-0.44:496:26Waxing Gibbous19Tue
20Wed9:119.99:3410.42:55-0.63:16-0.54:476:27Full Moon20Wed
21Thu10:0310.010:2110.63:47-0.94:04-0.54:456:28Full Moon21Thu
22Fri10:539.911:0610.64:36-1.14:50-0.44:446:29Full Moon22Fri
23Sat11:409.811:5010.45:23-1.15:35-0.14:426:31Full Moon23Sat
24Sun1:259.57:07-0.97:180.25:417:32Waning Gibbous24Sun
25Mon1:3210.22:099.17:51-0.68:010.65:397:33Waning Gibbous25Mon
26Tue2:159.82:558.88:35-0.28:451.05:387:34Waning Gibbous26Tue
27Wed2:599.43:438.49:210.29:331.35:367:35Waning Gibbous27Wed
28Thu3:478.94:338.210:100.610:241.65:357:36Third Quarter28Thu
29Fri4:398.65:268.011:011.011:181.85:337:38Third Quarter29Fri
30Sat5:348.36:198.011:531.25:327:39Third Quarter30Sat
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 8:26 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 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