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 4h 42m 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 - Jul 2071

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:0511.22:4710.28:25-1.58:45-0.45:008:24Waxing Crescent1Wed
2Thu3:0210.83:4410.19:20-1.29:45-0.25:018:24First Quarter2Thu
3Fri4:0210.24:4210.010:17-0.710:480.15:018:24First Quarter3Fri
4Sat5:049.75:409.811:14-0.311:510.35:028:24First Quarter4Sat
5Sun6:069.26:399.712:130.25:028:23First Quarter5Sun
6Mon7:098.87:379.612:560.51:120.65:038:23Waxing Gibbous6Mon
7Tue8:118.58:339.62:000.52:110.95:048:23Waxing Gibbous7Tue
8Wed9:098.49:249.62:580.43:051.05:048:22Waxing Gibbous8Wed
9Thu10:008.410:119.63:500.33:541.15:058:22Waxing Gibbous9Thu
10Fri10:478.510:549.64:360.24:381.15:068:21Full Moon10Fri
11Sat11:318.511:359.75:190.15:191.15:078:21Full Moon11Sat
12Sun12:118.65:580.15:581.15:088:20Full Moon12Sun
13Mon12:139.612:498.66:340.16:351.15:088:19Full Moon13Mon
14Tue12:509.61:258.77:080.17:121.15:098:19Waning Gibbous14Tue
15Wed1:269.52:018.77:420.27:491.15:108:18Waning Gibbous15Wed
16Thu2:029.32:368.78:160.38:281.15:118:17Waning Gibbous16Thu
17Fri2:409.13:138.88:530.39:101.15:128:17Waning Gibbous17Fri
18Sat3:218.93:538.99:330.49:561.05:138:16Third Quarter18Sat
19Sun4:068.84:379.010:160.510:461.05:148:15Third Quarter19Sun
20Mon4:558.65:249.211:030.611:390.85:158:14Third Quarter20Mon
21Tue5:498.56:169.511:540.75:168:13Third Quarter21Tue
22Wed6:488.57:139.812:360.612:490.65:178:12Waning Crescent22Wed
23Thu7:518.68:1210.21:370.21:490.45:188:12Waning Crescent23Thu
24Fri8:538.99:1110.62:39-0.22:490.15:198:11Waning Crescent24Fri
25Sat9:529.310:0811.13:37-0.83:47-0.25:208:10New Moon25Sat
26Sun10:499.711:0511.44:33-1.24:44-0.65:218:09New Moon26Sun
27Mon11:4510.15:27-1.65:40-0.85:228:07New Moon27Mon
28Tue12:0011.512:3910.46:20-1.86:36-1.05:238:06Waxing Crescent28Tue
29Wed12:5511.41:3110.57:12-1.77:31-0.95:248:05Waxing Crescent29Wed
30Thu1:4911.12:2410.58:04-1.58:26-0.75:258:04Waxing Crescent30Thu
31Fri2:4410.63:1810.38:56-1.19:24-0.45:268:03Waxing Crescent31Fri
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