Nearby Harbors
44.2759’ N, 68.3187’ W

Southwest Harbor, ME

68°
H -°
L 47°
NW
17mph
Low tide
7:31 pm
Photo Credits

Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Monday, September 14, 2026
The tide is currently falling in Southwest Harbor, ME.
Next low tide : in 3h 26m at 7:31 pm (0.0 ft)
Next high tide (tomorrow) : 2:05 am (10.4 ft)
Sunset today : 6:46 pm
Sunrise tomorrow : 6:11 am
Moon phase : Waxing Crescent (14% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Featured Local Businesses

Charles M Young Painting of Maine Coast

Clark Point Gallery
A red hull lobster yacht cruising in calm water

John Williams Boat Company
Hamilton Marine - Southwest Harbor

Hamilton Marine - Southwest Harbor
Bowden Marine

Bowden Marine
Billings Diesel & Marine - Diesel Service

Billings Diesel & Marine

Southwest Harbor, ME Tides - Oct 1899

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:159.78:3210.11:380.91:561.15:305:14Waning Crescent1Sun
2Mon8:5510.09:1310.32:200.82:390.85:325:13Waning Crescent2Mon
3Tue9:3110.39:5110.42:580.63:170.55:335:11New Moon3Tue
4Wed10:0610.610:2710.43:330.63:540.35:345:09New Moon4Wed
5Thu10:3910.811:0310.34:060.64:290.25:355:07New Moon5Thu
6Fri11:1310.911:3910.34:400.75:050.15:375:05New Moon6Fri
7Sat11:4811.05:140.85:420.15:385:03Waxing Crescent7Sat
8Sun12:1710.112:2711.05:520.96:230.25:395:02Waxing Crescent8Sun
9Mon12:599.91:1010.96:331.17:090.35:405:00Waxing Crescent9Mon
10Tue1:469.72:0010.87:211.28:010.45:414:58First Quarter10Tue
11Wed2:399.62:5610.68:151.38:590.55:434:56First Quarter11Wed
12Thu3:399.53:5910.59:171.410:020.55:444:55First Quarter12Thu
13Fri4:449.65:0610.610:251.211:070.35:454:53First Quarter13Fri
14Sat5:4910.06:1310.811:330.85:464:51Waxing Gibbous14Sat
15Sun6:5110.67:1711.112:100.012:380.25:484:49Waxing Gibbous15Sun
16Mon7:4811.28:1511.41:08-0.41:38-0.45:494:48Waxing Gibbous16Mon
17Tue8:4111.89:1011.72:03-0.62:33-1.05:504:46Full Moon17Tue
18Wed9:3112.310:0211.72:54-0.83:25-1.45:524:44Full Moon18Wed
19Thu10:1912.510:5211.63:43-0.84:15-1.55:534:43Full Moon19Thu
20Fri11:0712.411:4111.34:31-0.55:04-1.45:544:41Waning Gibbous20Fri
21Sat11:5412.15:19-0.25:53-1.05:554:40Waning Gibbous21Sat
22Sun12:3010.912:4211.66:070.36:43-0.55:574:38Waning Gibbous22Sun
23Mon1:2010.31:3111.16:570.87:340.15:584:36Waning Gibbous23Mon
24Tue2:119.82:2410.57:481.38:270.65:594:35Third Quarter24Tue
25Wed3:059.43:1910.08:431.79:221.06:014:33Third Quarter25Wed
26Thu4:029.14:179.69:411.910:181.36:024:32Third Quarter26Thu
27Fri4:599.05:169.410:402.011:131.46:034:30Third Quarter27Fri
28Sat5:549.16:139.411:381.86:054:29Waning Crescent28Sat
29Sun6:459.47:069.512:051.412:311.56:064:27Waning Crescent29Sun
30Mon7:319.77:549.612:531.21:191.26:074:26Waning Crescent30Mon
31Tue8:1310.18:379.81:361.12:030.86:094:24Waning Crescent31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8413564)

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Common Questions About Southwest Harbor, ME Tides

Collapse All
Is this week a spring tide or neap tide in Southwest Harbor, ME?

Southwest Harbor, ME is currently in a spring phase. Tonight's moon is 14% 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 maximum.

What datum are Southwest 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 Southwest Harbor, ME?

Tide predictions for Southwest 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 Southwest Harbor, ME?

Tide data for Southwest Harbor, ME is sourced from NOAA Station #8413564. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8413564.

What is the moon phase in Southwest Harbor, ME tonight?

Tonight the moon over Southwest Harbor, ME is Waxing Crescent (14% illuminated). This places Southwest Harbor, ME in a spring tide cycle, so tidal ranges are near their weekly maximum 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

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