Tides Today & Tomorrow in Boothbay Harbor, ME

TIDE TIMES for Saturday, July 18, 2026
The tide is currently falling in Boothbay Harbor, ME.
Next low tide : in 2h 23m at 8:40 am (-0.8 ft)
Next high tide : 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 - Dec 2071

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:438.36:018.111:461.56:524:02First Quarter1Tue
2Wed6:328.66:568.212:051.112:421.26:534:01Waxing Gibbous2Wed
3Thu7:209.07:488.412:561.01:340.76:544:01Waxing Gibbous3Thu
4Fri8:059.58:368.71:440.72:220.26:564:01Waxing Gibbous4Fri
5Sat8:4910.09:239.12:300.43:08-0.46:574:01Full Moon5Sat
6Sun9:3310.410:109.43:160.13:54-0.96:584:01Full Moon6Sun
7Mon10:1910.810:579.64:02-0.24:41-1.36:584:00Full Moon7Mon
8Tue11:0711.011:469.74:50-0.45:29-1.56:594:00Full Moon8Tue
9Wed11:5611.15:40-0.56:18-1.67:004:00Waning Gibbous9Wed
10Thu12:369.812:4810.96:31-0.57:10-1.47:014:00Waning Gibbous10Thu
11Fri1:299.81:4210.67:26-0.38:04-1.27:024:00Waning Gibbous11Fri
12Sat2:269.72:4210.28:25-0.19:02-0.87:034:01Third Quarter12Sat
13Sun3:279.63:469.79:280.110:02-0.57:044:01Third Quarter13Sun
14Mon4:299.54:529.310:340.211:04-0.17:044:01Third Quarter14Mon
15Tue5:319.55:599.011:420.27:054:01Third Quarter15Tue
16Wed6:329.67:058.912:060.112:500.17:064:01Waning Crescent16Wed
17Thu7:319.88:068.91:080.31:52-0.17:074:02Waning Crescent17Thu
18Fri8:249.99:008.92:050.32:46-0.37:074:02Waning Crescent18Fri
19Sat9:1310.09:498.92:560.43:35-0.57:084:02New Moon19Sat
20Sun9:5810.010:358.93:420.44:20-0.57:084:03New Moon20Sun
21Mon10:409.911:178.84:250.55:02-0.57:094:03New Moon21Mon
22Tue11:209.811:568.85:060.65:41-0.47:094:04New Moon22Tue
23Wed11:589.75:450.76:18-0.27:104:04Waxing Crescent23Wed
24Thu12:348.712:369.46:230.86:540.07:104:05Waxing Crescent24Thu
25Fri1:128.51:149.27:011.07:310.27:114:06Waxing Crescent25Fri
26Sat1:518.41:548.97:421.18:100.47:114:06Waxing Crescent26Sat
27Sun2:328.32:388.68:261.38:510.67:114:07First Quarter27Sun
28Mon3:158.33:258.39:131.49:360.87:114:08First Quarter28Mon
29Tue4:008.34:158.110:031.410:220.97:124:09First Quarter29Tue
30Wed4:488.45:098.010:561.311:121.07:124:09First Quarter30Wed
31Thu5:388.76:068.011:531.07:124:10Waxing 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 11:50 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 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