Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Saturday, July 11, 2026
The tide is currently falling in Southwest Harbor, ME.
Next low tide : in 1h 22m at 1:45 pm (0.8 ft)
Next high tide : 8:30 pm (11.7 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 5:00 am
Moon phase : Waning Crescent (11% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Feb 2068

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:1511.38:5210.31:330.62:16-0.66:504:42Waning Crescent1Wed
2Thu9:0912.09:4411.02:29-0.13:07-1.26:494:43New Moon2Thu
3Fri10:0012.510:3311.63:22-0.63:57-1.76:484:45New Moon3Fri
4Sat10:5112.711:2212.04:14-1.14:46-1.96:474:46New Moon4Sat
5Sun11:4212.75:05-1.45:35-1.96:464:48Waxing Crescent5Sun
6Mon12:1212.212:3412.45:58-1.56:25-1.76:444:49Waxing Crescent6Mon
7Tue1:0212.21:2811.96:52-1.37:16-1.26:434:50Waxing Crescent7Tue
8Wed1:5511.92:2411.27:48-1.08:11-0.66:424:52First Quarter8Wed
9Thu2:5111.53:2410.58:48-0.59:090.16:414:53First Quarter9Thu
10Fri3:5011.04:299.89:51-0.110:110.76:394:55First Quarter10Fri
11Sat4:5410.65:369.410:570.311:161.06:384:56First Quarter11Sat
12Sun5:5910.36:429.212:030.46:364:57Waxing Gibbous12Sun
13Mon7:0310.37:439.312:201.11:040.46:354:59Waxing Gibbous13Mon
14Tue8:0010.38:369.51:201.11:590.36:335:00Waxing Gibbous14Tue
15Wed8:5110.59:229.72:130.92:470.16:325:02Waxing Gibbous15Wed
16Thu9:3510.610:039.92:590.73:290.06:315:03Full Moon16Thu
17Fri10:1510.710:4010.13:410.54:070.06:295:04Full Moon17Fri
18Sat10:5210.711:1410.24:190.44:420.06:275:06Full Moon18Sat
19Sun11:2710.611:4710.34:550.45:150.16:265:07Full Moon19Sun
20Mon12:0110.45:290.45:470.36:245:08Waning Gibbous20Mon
21Tue12:1910.312:3610.26:040.56:190.56:235:10Waning Gibbous21Tue
22Wed12:5310.31:129.96:390.66:530.76:215:11Waning Gibbous22Wed
23Thu1:2810.21:509.67:170.77:300.96:205:12Waning Gibbous23Thu
24Fri2:0710.12:339.37:590.88:121.26:185:14Third Quarter24Fri
25Sat2:5210.03:239.08:470.99:011.46:165:15Third Quarter25Sat
26Sun3:439.94:208.99:430.99:581.46:155:16Third Quarter26Sun
27Mon4:4210.05:248.910:450.811:011.36:135:18Third Quarter27Mon
28Tue5:4610.26:299.311:490.56:115:19Waning Crescent28Tue
29Wed6:5110.77:319.912:070.912:520.06:105:20Waning Crescent29Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8413564)

Common Questions About Southwest Harbor, ME Tides

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What time does the tide turn (slack tide) in Southwest Harbor, ME today?

Slack tide in Southwest Harbor, ME is approximately 5:07 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 Southwest Harbor, ME?

Southwest Harbor, ME is currently in a spring phase. Tonight's moon is 11% 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 Waning Crescent (11% 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