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 : 1:57 pm (1.6 ft)
Next high tide : in 4h 19m at 8:24 am (9.2 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 - Mar 2006

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:2812.511:5412.24:50-1.45:18-1.76:105:21Waxing Crescent1Wed
2Thu12:1812.25:42-1.56:06-1.46:085:22Waxing Crescent2Thu
3Fri12:4212.21:1011.76:34-1.46:55-0.86:065:23Waxing Crescent3Fri
4Sat1:3211.92:0410.97:27-1.07:46-0.16:045:25Waxing Crescent4Sat
5Sun2:2411.43:0110.18:23-0.58:410.66:035:26First Quarter5Sun
6Mon3:2010.84:039.49:230.19:411.36:015:27First Quarter6Mon
7Tue4:2110.25:098.910:280.610:461.75:595:28First Quarter7Tue
8Wed5:289.86:178.611:350.911:531.95:575:30First Quarter8Wed
9Thu6:349.67:208.712:391.05:565:31Waxing Gibbous9Thu
10Fri7:359.78:148.912:551.81:360.95:545:32Waxing Gibbous10Fri
11Sat8:279.99:009.21:491.52:240.75:525:34Waxing Gibbous11Sat
12Sun9:1310.29:409.52:371.23:060.55:505:35Waxing Gibbous12Sun
13Mon9:5310.310:169.83:180.93:430.45:485:36Full Moon13Mon
14Tue10:2910.410:4910.13:560.64:170.35:475:37Full Moon14Tue
15Wed11:0410.411:2010.34:310.54:480.45:455:39Full Moon15Wed
16Thu11:3710.311:5110.45:040.45:190.55:435:40Full Moon16Thu
17Fri12:1110.15:380.45:500.75:415:41Waning Gibbous17Fri
18Sat12:2210.412:459.86:120.46:220.95:395:42Waning Gibbous18Sat
19Sun12:5610.41:239.66:490.56:581.25:375:44Waning Gibbous19Sun
20Mon1:3410.32:069.27:300.67:401.45:365:45Waning Gibbous20Mon
21Tue2:1810.22:558.98:180.78:291.75:345:46Third Quarter21Tue
22Wed3:1010.03:538.79:140.89:271.85:325:47Third Quarter22Wed
23Thu4:119.95:008.710:180.910:351.75:305:49Third Quarter23Thu
24Fri5:1910.16:099.011:270.611:451.45:285:50Waning Crescent24Fri
25Sat6:2910.47:139.612:330.25:265:51Waning Crescent25Sat
26Sun7:3311.08:1210.412:520.71:33-0.45:255:52Waning Crescent26Sun
27Mon8:3311.59:0511.21:530.02:27-0.95:235:54Waning Crescent27Mon
28Tue9:2712.09:5411.92:49-0.83:17-1.25:215:55New Moon28Tue
29Wed10:1912.210:4212.33:42-1.44:06-1.45:195:56New Moon29Wed
30Thu11:1012.111:2912.54:33-1.74:53-1.25:175:57New Moon30Thu
31Fri12:0011.85:23-1.75:41-0.85:155:58Waxing Crescent31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8413564)

Common Questions About Southwest Harbor, ME Tides

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

Slack tide in Southwest Harbor, ME is approximately 11:10 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 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