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 6h 12m 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 - Jun 2071

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:2411.32:0810.07:47-1.68:02-0.34:598:14Waxing Crescent1Mon
2Tue2:1911.03:049.98:42-1.48:59-0.14:588:14Waxing Crescent2Tue
3Wed3:1710.64:049.89:39-1.110:010.14:588:15First Quarter3Wed
4Thu4:1910.25:059.710:38-0.711:060.34:578:16First Quarter4Thu
5Fri5:239.76:059.711:38-0.34:578:17First Quarter5Fri
6Sat6:289.37:069.712:120.412:390.04:568:17First Quarter6Sat
7Sun7:339.18:049.71:190.41:400.34:568:18Waxing Gibbous7Sun
8Mon8:358.98:599.82:230.32:380.54:568:19Waxing Gibbous8Mon
9Tue9:328.99:489.93:200.13:300.64:568:19Waxing Gibbous9Tue
10Wed10:238.810:349.94:11-0.14:170.74:568:20Waxing Gibbous10Wed
11Thu11:108.811:179.94:57-0.15:010.84:558:20Full Moon11Thu
12Fri11:548.811:579.85:40-0.15:420.94:558:21Full Moon12Fri
13Sat12:358.76:20-0.16:211.04:558:21Full Moon13Sat
14Sun12:359.71:148.76:570.06:591.14:558:22Full Moon14Sun
15Mon1:139.61:528.67:330.17:371.24:558:22Waning Gibbous15Mon
16Tue1:509.42:308.58:100.28:161.34:558:23Waning Gibbous16Tue
17Wed2:299.23:108.58:470.48:581.44:558:23Waning Gibbous17Wed
18Thu3:109.03:518.59:270.59:431.54:558:23Waning Gibbous18Thu
19Fri3:548.84:348.510:090.610:311.54:568:24Third Quarter19Fri
20Sat4:418.65:198.710:540.711:211.44:568:24Third Quarter20Sat
21Sun5:328.56:068.911:400.84:568:24Third Quarter21Sun
22Mon6:258.46:569.212:151.212:310.84:568:24Third Quarter22Mon
23Tue7:238.57:489.61:110.81:240.74:568:24Waning Crescent23Tue
24Wed8:228.78:4210.12:090.42:200.54:578:24Waning Crescent24Wed
25Thu9:199.09:3510.63:05-0.23:140.24:578:25Waning Crescent25Thu
26Fri10:149.310:2711.13:59-0.74:08-0.14:588:25New Moon26Fri
27Sat11:099.711:2111.44:52-1.25:02-0.44:588:25New Moon27Sat
28Sun12:0310.05:45-1.65:56-0.64:588:25New Moon28Sun
29Mon12:1511.512:5710.26:39-1.86:51-0.74:598:24Waxing Crescent29Mon
30Tue1:1011.51:5210.27:31-1.87:47-0.64:598:24Waxing Crescent30Tue
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