Tides Today & Tomorrow in Boothbay Harbor, ME

TIDE TIMES for Saturday, July 18, 2026
The tide is currently rising in Boothbay Harbor, ME.
Next low tide : 9:01 pm (0.2 ft)
Next high tide : in 4h 46m at 3:00 pm (9.7 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 5:13 am
Moon phase : Waxing Crescent (23% illuminated)
Tide Station Location : Station #8416828
Common Questions About Tides

Boothbay Harbor, ME Tides - Mar 2072

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:279.88:109.01:050.41:52-0.56:135:27Waxing Gibbous1Tue
2Wed8:2910.39:079.62:08-0.22:50-1.16:115:29Waxing Gibbous2Wed
3Thu9:2610.810:0010.23:06-0.73:43-1.56:095:30Full Moon3Thu
4Fri10:2011.110:5210.64:01-1.34:34-1.86:075:31Full Moon4Fri
5Sat11:1311.211:4110.84:55-1.65:24-1.96:065:33Full Moon5Sat
6Sun12:0511.05:47-1.76:13-1.76:045:34Waning Gibbous6Sun
7Mon12:3010.912:5610.66:38-1.67:02-1.36:025:35Waning Gibbous7Mon
8Tue1:1910.61:4910.17:31-1.37:52-0.76:015:36Waning Gibbous8Tue
9Wed2:1010.22:449.48:25-0.88:450.05:595:38Waning Gibbous9Wed
10Thu3:059.73:438.89:23-0.29:410.65:575:39Third Quarter10Thu
11Fri4:029.24:448.310:240.310:411.15:555:40Third Quarter11Fri
12Sat5:038.85:488.011:280.711:451.45:535:41Third Quarter12Sat
13Sun7:058.67:517.91:330.86:526:43Third Quarter13Sun
14Mon8:078.58:488.01:501.52:340.86:506:44Waning Crescent14Mon
15Tue9:028.79:378.22:481.33:250.66:486:45Waning Crescent15Tue
16Wed9:518.910:218.53:381.14:090.56:466:46Waning Crescent16Wed
17Thu10:349.011:008.84:210.84:480.36:446:48Waning Crescent17Thu
18Fri11:149.211:369.05:000.55:230.26:436:49New Moon18Fri
19Sat11:519.35:360.35:550.16:416:50New Moon19Sat
20Sun12:109.212:269.36:110.16:270.16:396:51New Moon20Sun
21Mon12:429.31:009.26:450.06:590.16:376:52New Moon21Mon
22Tue1:149.41:359.17:20-0.17:340.26:356:54Waxing Crescent22Tue
23Wed1:479.52:129.07:58-0.18:110.36:346:55Waxing Crescent23Wed
24Thu2:239.52:538.88:39-0.18:530.56:326:56Waxing Crescent24Thu
25Fri3:059.43:408.69:260.09:410.76:306:57First Quarter25Fri
26Sat3:549.44:358.410:180.110:350.86:286:59First Quarter26Sat
27Sun4:519.35:358.311:160.211:350.96:267:00First Quarter27Sun
28Mon5:539.36:418.412:190.26:247:01First Quarter28Mon
29Tue7:019.47:488.812:400.71:260.06:237:02Waxing Gibbous29Tue
30Wed8:109.78:519.31:490.42:31-0.46:217:03Waxing Gibbous30Wed
31Thu9:1310.19:489.92:54-0.13:29-0.86:197:05Waxing Gibbous31Thu
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 6:00 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 transitional phase. Tonight's moon is 23% 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 Waxing Crescent (23% 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