Tides Today & Tomorrow in Boothbay Harbor, ME

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently falling in Boothbay Harbor, ME.
Next low tide : in 39m at 11:55 pm (0.9 ft)
Next high tide (tomorrow) : 6:07 am (8.1 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 5:16 am
Moon phase : First Quarter (52% illuminated)
Tide Station Location : Station #8416828
Common Questions About Tides

Boothbay Harbor, ME Tides - Nov 1975

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:1510.58:4610.11:56-0.42:30-0.96:144:30Waning Crescent1Sat
2Sun9:0711.09:4110.32:49-0.73:24-1.46:154:28New Moon2Sun
3Mon9:5811.310:3510.33:40-0.84:17-1.76:164:27New Moon3Mon
4Tue10:4811.411:2710.24:31-0.85:09-1.86:184:26New Moon4Tue
5Wed11:3911.25:22-0.66:00-1.66:194:24Waxing Crescent5Wed
6Thu12:199.912:2910.96:12-0.36:52-1.26:204:23Waxing Crescent6Thu
7Fri1:119.51:2110.47:040.17:45-0.76:224:22Waxing Crescent7Fri
8Sat2:059.12:169.87:580.68:40-0.16:234:21Waxing Crescent8Sat
9Sun3:028.83:149.38:561.09:370.46:244:19First Quarter9Sun
10Mon4:008.54:138.89:571.310:340.76:264:18First Quarter10Mon
11Tue4:578.45:138.510:581.511:311.06:274:17First Quarter11Tue
12Wed5:538.46:128.312:001.56:284:16First Quarter12Wed
13Thu6:468.57:088.312:261.212:581.36:294:15Waxing Gibbous13Thu
14Fri7:348.88:008.31:171.21:501.06:314:14Waxing Gibbous14Fri
15Sat8:189.08:468.42:021.12:360.76:324:13Waxing Gibbous15Sat
16Sun8:589.29:288.52:431.13:160.46:334:12Waxing Gibbous16Sun
17Mon9:369.410:088.63:201.03:540.26:354:11Full Moon17Mon
18Tue10:129.610:478.63:560.94:310.06:364:10Full Moon18Tue
19Wed10:489.711:258.64:330.95:08-0.16:374:09Full Moon19Wed
20Thu11:259.85:100.95:45-0.26:394:09Full Moon20Thu
21Fri12:038.612:039.85:490.86:25-0.26:404:08Waning Gibbous21Fri
22Sat12:428.612:449.86:310.87:07-0.26:414:07Waning Gibbous22Sat
23Sun1:248.61:299.77:160.87:53-0.26:424:06Waning Gibbous23Sun
24Mon2:128.72:209.68:070.88:43-0.16:444:06Third Quarter24Mon
25Tue3:048.83:179.49:030.89:370.06:454:05Third Quarter25Tue
26Wed4:019.04:189.210:030.710:340.06:464:05Third Quarter26Wed
27Thu4:599.35:239.111:070.511:330.16:474:04Third Quarter27Thu
28Fri5:599.66:299.212:120.16:484:03Waning Crescent28Fri
29Sat6:5810.07:339.312:340.01:17-0.36:494:03Waning Crescent29Sat
30Sun7:5510.58:339.51:34-0.12:17-0.86:514:03Waning Crescent30Sun
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 3:01 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 52% 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 (52% 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