Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Saturday, June 13, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide (tomorrow) : 3:52 am (-1.1 ft)
Next high tide : in 5h 45m at 9:47 pm (12.2 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 4:48 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Oct 2035

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:1111.711:3411.74:35-0.84:59-0.86:316:14New Moon1Mon
2Tue11:5611.75:21-0.75:45-0.76:326:12New Moon2Tue
3Wed12:2011.512:3811.66:05-0.46:30-0.56:336:11Waxing Crescent3Wed
4Thu1:0411.11:2011.36:470.17:14-0.26:346:09Waxing Crescent4Thu
5Fri1:4910.62:0311.07:300.57:580.26:356:07Waxing Crescent5Fri
6Sat2:3310.12:4710.58:131.08:440.66:376:05Waxing Crescent6Sat
7Sun3:209.73:3310.18:591.59:321.06:386:03First Quarter7Sun
8Mon4:109.24:249.79:491.810:241.36:396:02First Quarter8Mon
9Tue5:048.95:199.510:432.111:201.46:406:00First Quarter9Tue
10Wed6:008.86:169.411:402.16:415:58First Quarter10Wed
11Thu6:568.97:129.512:151.412:362.06:435:56Waxing Gibbous11Thu
12Fri7:499.28:059.81:091.21:301.66:445:55Waxing Gibbous12Fri
13Sat8:369.68:5310.21:580.92:191.26:455:53Waxing Gibbous13Sat
14Sun9:2010.29:3810.62:430.63:040.76:465:51Waxing Gibbous14Sun
15Mon10:0110.710:2110.93:250.23:460.16:485:49Full Moon15Mon
16Tue10:4011.211:0311.24:05-0.14:28-0.36:495:48Full Moon16Tue
17Wed11:2011.711:4611.44:45-0.35:10-0.76:505:46Full Moon17Wed
18Thu12:0212.05:27-0.45:54-1.06:525:44Full Moon18Thu
19Fri12:3011.412:4612.26:10-0.46:41-1.16:535:43Waning Gibbous19Fri
20Sat1:1811.31:3312.16:57-0.27:31-1.06:545:41Waning Gibbous20Sat
21Sun2:0911.12:2511.97:480.08:25-0.86:555:39Waning Gibbous21Sun
22Mon3:0410.73:2211.68:440.39:24-0.56:575:38Third Quarter22Mon
23Tue4:0510.44:2511.29:460.610:28-0.26:585:36Third Quarter23Tue
24Wed5:1010.25:3210.910:530.811:350.06:595:35Third Quarter24Wed
25Thu6:1810.26:4110.812:020.77:015:33Waning Crescent25Thu
26Fri7:2310.47:4710.812:400.01:090.57:025:32Waning Crescent26Fri
27Sat8:2310.88:4811.01:42-0.12:100.17:035:30Waning Crescent27Sat
28Sun9:1711.19:4211.12:38-0.33:06-0.37:045:29Waning Crescent28Sun
29Mon10:0611.410:3211.23:28-0.33:56-0.57:065:27New Moon29Mon
30Tue10:5111.611:1711.14:15-0.34:42-0.77:075:26New Moon30Tue
31Wed11:3311.64:59-0.15:26-0.67:085:24New Moon31Wed
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 12:49 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 3% 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 New Moon (3% 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