Tides Today & Tomorrow in Boothbay Harbor, ME

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently rising in Boothbay Harbor, ME.
Next low tide : 10:30 am (1.3 ft)
Next high tide : in 32m at 4:34 am (8.3 ft)
Sunset today : 7:36 pm
Sunrise tomorrow : 5:47 am
Moon phase : First Quarter (46% illuminated)
Tide Station Location : Station #8416828
Common Questions About Tides

Boothbay Harbor, ME Tides - Sep 1923

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:288.53:478.89:281.09:591.16:007:16Third Quarter1Sat
2Sun4:148.24:338.610:121.310:481.36:027:14Third Quarter2Sun
3Mon5:057.95:228.510:591.611:401.46:037:12Third Quarter3Mon
4Tue5:597.76:158.511:501.76:047:11Third Quarter4Tue
5Wed6:557.77:118.712:361.412:451.76:057:09Waning Crescent5Wed
6Thu7:537.88:078.91:341.21:431.56:067:07Waning Crescent6Thu
7Fri8:468.28:599.42:290.82:381.16:077:05Waning Crescent7Fri
8Sat9:358.79:489.83:190.43:290.66:087:03Waning Crescent8Sat
9Sun10:209.210:3510.34:05-0.24:170.16:097:02New Moon9Sun
10Mon11:059.811:2310.64:50-0.65:05-0.56:117:00New Moon10Mon
11Tue11:5010.25:35-1.05:53-0.96:126:58New Moon11Tue
12Wed12:1110.812:3610.66:20-1.26:43-1.26:136:56Waxing Crescent12Wed
13Thu1:0010.81:2410.87:07-1.27:33-1.36:146:54Waxing Crescent13Thu
14Fri1:5010.62:1310.87:56-1.08:26-1.26:156:53Waxing Crescent14Fri
15Sat2:4410.23:0610.78:47-0.79:23-0.96:166:51Waxing Crescent15Sat
16Sun3:429.84:0410.49:43-0.210:24-0.56:176:49First Quarter16Sun
17Mon4:459.35:0710.010:440.211:29-0.26:186:47First Quarter17Mon
18Tue5:519.06:139.811:480.66:206:45First Quarter18Tue
19Wed6:598.87:209.612:370.112:560.86:216:43Waxing Gibbous19Wed
20Thu8:058.88:249.61:450.12:040.76:226:41Waxing Gibbous20Thu
21Fri9:049.09:229.72:470.13:050.66:236:40Waxing Gibbous21Fri
22Sat9:569.210:139.83:410.03:580.46:246:38Waxing Gibbous22Sat
23Sun10:439.310:599.84:29-0.14:450.26:256:36Full Moon23Sun
24Mon11:259.411:429.75:110.05:280.16:266:34Full Moon24Mon
25Tue12:039.55:500.16:080.16:286:32Full Moon25Tue
26Wed12:229.512:399.56:260.26:450.26:296:30Full Moon26Wed
27Thu1:009.31:149.47:000.47:220.36:306:29Waning Gibbous27Thu
28Fri1:369.01:489.37:340.77:590.56:316:27Waning Gibbous28Fri
29Sat2:148.72:249.18:101.08:380.76:326:25Waning Gibbous29Sat
30Sun1:548.42:038.97:491.28:200.95:335:23Waning Gibbous30Sun
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 7:32 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 46% 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 (46% 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