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 (tomorrow) : 9:30 am (-0.3 ft)
Next high tide (tomorrow) : in 5h 23m at 3:16 am (9.9 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 1976

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:008.97:248.312:341.01:160.96:534:02Waxing Gibbous1Wed
2Thu7:489.08:188.31:281.12:100.76:544:02Waxing Gibbous2Thu
3Fri8:309.29:068.32:161.12:520.46:554:01Waxing Gibbous3Fri
4Sat9:129.39:488.42:581.13:340.26:564:01Full Moon4Sat
5Sun9:549.510:308.53:401.04:160.16:574:01Full Moon5Sun
6Mon10:309.511:068.54:161.04:520.06:584:01Full Moon6Mon
7Tue11:069.611:428.54:521.05:280.06:594:01Full Moon7Tue
8Wed11:429.65:281.05:580.07:004:01Full Moon8Wed
9Thu12:188.512:189.56:041.06:340.07:014:01Waning Gibbous9Thu
10Fri12:548.512:549.46:401.07:160.07:024:01Waning Gibbous10Fri
11Sat1:368.51:369.37:220.97:580.07:024:01Waning Gibbous11Sat
12Sun2:188.62:249.28:100.98:400.17:034:01Third Quarter12Sun
13Mon3:008.83:189.09:040.89:340.17:044:01Third Quarter13Mon
14Tue3:549.04:128.99:580.710:280.27:054:01Third Quarter14Tue
15Wed4:489.35:128.810:580.411:220.27:064:01Third Quarter15Wed
16Thu5:489.66:188.912:040.17:064:02Waning Crescent16Thu
17Fri6:4810.07:249.112:220.11:10-0.47:074:02Waning Crescent17Fri
18Sat7:4210.58:249.31:22-0.12:10-0.97:074:02Waning Crescent18Sat
19Sun8:4210.99:249.62:22-0.33:04-1.47:084:03New Moon19Sun
20Mon9:3611.210:189.83:16-0.63:58-1.77:094:03New Moon20Mon
21Tue10:3011.311:129.94:10-0.74:52-1.87:094:04New Moon21Tue
22Wed11:2411.25:04-0.75:46-1.77:104:04New Moon22Wed
23Thu12:009.912:1211.05:58-0.66:34-1.57:104:05Waxing Crescent23Thu
24Fri12:549.71:0610.56:46-0.37:22-1.07:104:05Waxing Crescent24Fri
25Sat1:429.52:009.97:400.08:16-0.57:114:06Waxing Crescent25Sat
26Sun2:369.22:549.38:400.49:040.07:114:06First Quarter26Sun
27Mon3:309.03:488.79:340.79:580.57:114:07First Quarter27Mon
28Tue4:248.84:488.210:341.010:521.07:124:08First Quarter28Tue
29Wed5:188.65:487.911:341.111:461.37:124:09First Quarter29Wed
30Thu6:128.66:487.712:341.17:124:10Waxing Gibbous30Thu
31Fri7:068.77:427.812:461.41:341.07:124:10Waxing Gibbous31Fri
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 6:23 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