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 4h 14m 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 - May 2073

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:458.58:238.51:331.52:040.95:297:42Waning Crescent1Mon
2Tue8:418.59:128.82:311.32:550.95:277:43Waning Crescent2Tue
3Wed9:318.69:559.03:221.03:400.85:267:44Waning Crescent3Wed
4Thu10:168.710:349.24:060.74:190.85:247:45Waning Crescent4Thu
5Fri10:578.811:109.44:460.44:550.85:237:46New Moon5Fri
6Sat11:378.811:459.55:230.25:290.85:227:47New Moon6Sat
7Sun12:148.85:590.16:030.85:217:49New Moon7Sun
8Mon12:189.612:518.86:340.06:380.95:197:50New Moon8Mon
9Tue12:529.61:278.77:09-0.17:150.95:187:51Waxing Crescent9Tue
10Wed1:279.62:058.67:47-0.17:541.05:177:52Waxing Crescent10Wed
11Thu2:059.62:468.68:280.08:371.15:167:53Waxing Crescent11Thu
12Fri2:499.63:338.59:140.09:261.15:157:54Waxing Crescent12Fri
13Sat3:389.54:268.610:040.110:211.15:137:55First Quarter13Sat
14Sun4:349.45:228.710:590.111:201.05:127:56First Quarter14Sun
15Mon5:349.36:219.011:560.15:117:58First Quarter15Mon
16Tue6:389.47:219.412:230.812:560.05:107:59Waxing Gibbous16Tue
17Wed7:449.58:2010.01:280.41:57-0.25:098:00Waxing Gibbous17Wed
18Thu8:489.79:1610.52:32-0.22:55-0.45:088:01Waxing Gibbous18Thu
19Fri9:4710.010:0910.93:31-0.83:49-0.65:078:02Waxing Gibbous19Fri
20Sat10:4310.111:0011.24:27-1.34:42-0.75:078:03Full Moon20Sat
21Sun11:3810.211:5111.35:20-1.65:33-0.65:068:04Full Moon21Sun
22Mon12:3110.16:12-1.76:24-0.55:058:05Full Moon22Mon
23Tue12:4111.21:239.97:03-1.57:15-0.15:048:06Waning Gibbous23Tue
24Wed1:3110.92:149.67:54-1.28:060.35:038:07Waning Gibbous24Wed
25Thu2:2110.43:079.28:45-0.78:590.75:028:08Waning Gibbous25Thu
26Fri3:149.94:028.99:38-0.39:541.15:028:09Waning Gibbous26Fri
27Sat4:099.44:578.710:320.210:521.45:018:10Third Quarter27Sat
28Sun5:068.95:518.511:260.611:511.65:008:11Third Quarter28Sun
29Mon6:038.56:458.512:200.95:008:11Third Quarter29Mon
30Tue7:018.37:388.612:511.61:141.14:598:12Third Quarter30Tue
31Wed7:588.28:278.81:491.52:061.24:598:13Waning Crescent31Wed
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