Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Thursday, June 4, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide (tomorrow) : 8:25 am (0.8 ft)
Next high tide (tomorrow) : in 3h 39m at 2:25 am (10.3 ft)
Sunset today : 8:12 pm
Sunrise tomorrow : 4:50 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Feb 2027

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon6:449.77:278.612:021.812:491.06:514:42Waning Crescent1Mon
2Tue7:409.88:208.71:001.81:430.86:494:43Waning Crescent2Tue
3Wed8:3010.09:079.01:521.62:310.66:484:45Waning Crescent3Wed
4Thu9:1410.39:479.22:381.43:130.46:474:46New Moon4Thu
5Fri9:5510.510:249.53:201.13:510.26:464:48New Moon5Fri
6Sat10:3210.610:599.73:580.94:260.16:454:49New Moon6Sat
7Sun11:0610.711:3110.04:330.84:590.16:434:50New Moon7Sun
8Mon11:4110.75:080.75:310.16:424:52Waxing Crescent8Mon
9Tue12:0410.112:1510.55:430.66:030.16:414:53Waxing Crescent9Tue
10Wed12:3710.312:5210.46:190.56:370.36:394:55Waxing Crescent10Wed
11Thu1:1210.41:3210.16:590.57:140.56:384:56Waxing Crescent11Thu
12Fri1:5210.52:169.77:420.57:570.76:374:57First Quarter12Fri
13Sat2:3710.43:079.48:330.58:461.06:354:59First Quarter13Sat
14Sun3:2910.44:079.19:300.69:441.26:345:00First Quarter14Sun
15Mon4:2910.35:158.910:360.610:501.36:325:02First Quarter15Mon
16Tue5:3710.46:269.011:460.46:315:03Waxing Gibbous16Tue
17Wed6:4710.77:349.512:011.112:550.06:295:04Waxing Gibbous17Wed
18Thu7:5311.38:3510.11:090.71:57-0.66:285:06Waxing Gibbous18Thu
19Fri8:5311.89:3010.82:120.12:53-1.16:265:07Full Moon19Fri
20Sat9:4812.210:2111.33:09-0.53:45-1.56:255:08Full Moon20Sat
21Sun10:4012.411:0911.74:02-1.04:34-1.66:235:10Full Moon21Sun
22Mon11:3012.311:5611.94:53-1.25:20-1.46:215:11Waning Gibbous22Mon
23Tue12:1911.95:43-1.26:07-1.16:205:12Waning Gibbous23Tue
24Wed12:4211.71:0811.36:32-0.96:53-0.56:185:14Waning Gibbous24Wed
25Thu1:2911.41:5810.67:22-0.57:400.26:165:15Waning Gibbous25Thu
26Fri2:1710.92:509.88:140.08:300.96:155:16Third Quarter26Fri
27Sat3:0710.33:469.19:080.69:241.56:135:18Third Quarter27Sat
28Sun4:039.84:468.610:071.010:231.96:115:19Third Quarter28Sun
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 5:25 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 Southwest Harbor, ME?

Southwest Harbor, ME is currently in a spring phase. Tonight's moon is 84% 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 Gibbous (84% 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