Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide (tomorrow) : 2:40 am (0.7 ft)
Next high tide : in 3h 04m at 8:38 pm (10.4 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 4:50 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Jun 2048

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:4412.03:2610.98:45-0.99:090.44:518:10Waning Gibbous1Mon
2Tue3:4411.44:2610.89:43-0.410:110.64:518:11Third Quarter2Tue
3Wed4:4610.85:2510.610:410.011:140.74:518:12Third Quarter3Wed
4Thu5:4910.36:2310.511:390.54:508:13Third Quarter4Thu
5Fri6:519.97:2010.512:160.812:360.84:508:13Waning Crescent5Fri
6Sat7:519.78:1210.61:150.71:311.04:498:14Waning Crescent6Sat
7Sun8:469.69:0110.62:100.62:221.24:498:15Waning Crescent7Sun
8Mon9:369.69:4610.73:010.43:091.34:498:15Waning Crescent8Mon
9Tue10:229.610:2810.83:470.33:531.44:498:16New Moon9Tue
10Wed11:049.611:0810.84:290.34:341.44:498:16New Moon10Wed
11Thu11:439.611:4610.85:090.25:131.44:488:17New Moon11Thu
12Fri12:219.75:460.35:511.54:488:17New Moon12Fri
13Sat12:2310.812:589.76:230.36:281.54:488:18Waxing Crescent13Sat
14Sun12:5910.71:349.76:590.47:051.64:488:18Waxing Crescent14Sun
15Mon1:3710.62:129.87:350.47:441.54:488:19Waxing Crescent15Mon
16Tue2:1610.52:519.98:130.58:261.54:488:19Waxing Crescent16Tue
17Wed2:5810.33:3210.08:520.59:121.44:488:20First Quarter17Wed
18Thu3:4310.24:1710.29:350.610:011.24:498:20First Quarter18Thu
19Fri4:3410.05:0610.410:220.610:561.04:498:20First Quarter19Fri
20Sat5:299.95:5910.811:140.711:540.64:498:20First Quarter20Sat
21Sun6:299.86:5511.112:090.74:498:21Waxing Gibbous21Sun
22Mon7:319.97:5311.612:550.21:080.64:498:21Waxing Gibbous22Mon
23Tue8:3310.28:5112.01:56-0.32:080.44:508:21Waxing Gibbous23Tue
24Wed9:3310.59:4912.42:56-0.83:070.24:508:21Full Moon24Wed
25Thu10:3110.910:4512.73:53-1.24:050.04:508:21Full Moon25Thu
26Fri11:2711.111:4112.84:49-1.55:02-0.24:518:21Full Moon26Fri
27Sat12:2111.35:44-1.65:58-0.34:518:21Full Moon27Sat
28Sun12:3612.71:1511.46:37-1.56:55-0.24:528:21Waning Gibbous28Sun
29Mon1:3112.42:0911.47:30-1.27:51-0.14:528:21Waning Gibbous29Mon
30Tue2:2611.93:0311.28:23-0.88:480.24:538:21Waning Gibbous30Tue
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 11:39 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 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 Waxing 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