Tides Today & Tomorrow in Boothbay Harbor, ME

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently falling in Boothbay Harbor, ME.
Next low tide : in 4h 49m at 10:19 pm (0.7 ft)
Next high tide (tomorrow) : 4:34 am (8.3 ft)
Sunset today : 7:38 pm
Sunrise tomorrow : 5:46 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8416828
Common Questions About Tides

Boothbay Harbor, ME Tides - Nov 1924

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:259.91:3810.87:21-0.38:01-1.16:144:29Waxing Crescent1Sat
2Sun2:239.52:3710.48:190.19:02-0.76:164:28First Quarter2Sun
3Mon3:279.23:4310.09:220.510:07-0.36:174:26First Quarter3Mon
4Tue4:339.14:519.610:300.711:13-0.16:184:25First Quarter4Tue
5Wed5:399.05:599.411:400.76:194:24First Quarter5Wed
6Thu6:429.27:059.312:190.112:480.66:214:23Waxing Gibbous6Thu
7Fri7:419.48:049.41:200.11:500.36:224:21Waxing Gibbous7Fri
8Sat8:329.68:569.42:140.12:430.06:234:20Waxing Gibbous8Sat
9Sun9:189.89:449.33:020.13:31-0.26:254:19Full Moon9Sun
10Mon10:009.910:289.23:450.24:15-0.36:264:18Full Moon10Mon
11Tue10:399.911:099.14:250.44:55-0.36:274:17Full Moon11Tue
12Wed11:169.811:488.95:020.65:33-0.26:294:16Full Moon12Wed
13Thu11:529.65:380.86:100.06:304:15Waning Gibbous13Thu
14Fri12:268.712:279.46:141.06:470.26:314:14Waning Gibbous14Fri
15Sat1:058.51:059.26:521.37:250.46:334:13Waning Gibbous15Sat
16Sun1:458.21:458.97:321.58:070.76:344:12Waning Gibbous16Sun
17Mon2:298.02:308.78:161.78:520.86:354:11Third Quarter17Mon
18Tue3:167.93:198.59:051.89:401.06:374:10Third Quarter18Tue
19Wed4:067.94:128.49:571.810:311.06:384:09Third Quarter19Wed
20Thu4:578.15:078.410:521.711:230.96:394:08Third Quarter20Thu
21Fri5:498.46:058.611:491.46:404:08Waning Crescent21Fri
22Sat6:408.87:028.812:160.712:470.86:424:07Waning Crescent22Sat
23Sun7:309.47:569.21:090.41:420.26:434:06Waning Crescent23Sun
24Mon8:1810.18:489.61:590.02:33-0.56:444:06Waning Crescent24Mon
25Tue9:0510.79:399.92:48-0.43:23-1.16:454:05New Moon25Tue
26Wed9:5311.110:3010.13:37-0.74:14-1.66:474:04New Moon26Wed
27Thu10:4311.411:2210.24:27-0.85:05-1.96:484:04New Moon27Thu
28Fri11:3411.55:18-0.95:57-1.96:494:03Waxing Crescent28Fri
29Sat12:1510.112:2711.36:10-0.76:50-1.76:504:03Waxing Crescent29Sat
30Sun1:109.91:2211.07:05-0.57:46-1.46:514:02Waxing 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 1:26 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 36% 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 First Quarter (36% 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