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 30m 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 - Sep 2071

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:108.65:319.211:091.011:530.86:027:14First Quarter1Tue
2Wed6:108.26:298.912:071.36:037:12First Quarter2Wed
3Thu7:108.07:288.812:551.01:071.56:047:10Waxing Gibbous3Thu
4Fri8:088.08:248.91:551.02:061.56:057:09Waxing Gibbous4Fri
5Sat9:018.19:159.02:500.92:591.46:067:07Waxing Gibbous5Sat
6Sun9:488.410:009.23:370.73:451.16:087:05Waxing Gibbous6Sun
7Mon10:308.610:419.44:180.54:270.96:097:03Full Moon7Mon
8Tue11:098.911:209.54:550.45:050.76:107:01Full Moon8Tue
9Wed11:459.111:579.55:300.25:410.56:117:00Full Moon9Wed
10Thu12:199.36:030.26:180.36:126:58Full Moon10Thu
11Fri12:339.512:529.46:370.16:540.26:136:56Waning Gibbous11Fri
12Sat1:099.51:269.57:120.17:330.16:146:54Waning Gibbous12Sat
13Sun1:479.32:039.67:490.28:150.06:156:52Waning Gibbous13Sun
14Mon2:289.22:449.78:300.39:010.16:176:50Waning Gibbous14Mon
15Tue3:149.03:329.79:170.49:520.16:186:49Third Quarter15Tue
16Wed4:078.84:269.610:090.610:490.26:196:47Third Quarter16Wed
17Thu5:068.65:269.611:060.711:510.26:206:45Third Quarter17Thu
18Fri6:108.66:319.712:080.76:216:43Third Quarter18Fri
19Sat7:168.87:389.912:560.11:150.56:226:41Waning Crescent19Sat
20Sun8:229.28:4310.22:02-0.22:220.26:236:39Waning Crescent20Sun
21Mon9:219.79:4310.53:03-0.53:23-0.36:246:38Waning Crescent21Mon
22Tue10:1510.110:3810.73:58-0.94:19-0.86:266:36New Moon22Tue
23Wed11:0710.511:3110.84:50-1.15:13-1.16:276:34New Moon23Wed
24Thu11:5610.75:39-1.16:04-1.26:286:32New Moon24Thu
25Fri12:2210.712:4310.76:27-0.96:54-1.16:296:30Waxing Crescent25Fri
26Sat1:1110.31:2910.57:13-0.67:42-0.86:306:28Waxing Crescent26Sat
27Sun2:009.92:1610.28:00-0.18:32-0.46:316:26Waxing Crescent27Sun
28Mon2:509.43:049.78:470.49:230.16:336:25Waxing Crescent28Mon
29Tue3:428.83:569.39:380.910:170.56:346:23First Quarter29Tue
30Wed4:378.44:518.910:321.311:140.96:356:21First Quarter30Wed
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