Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide : 1:05 pm (1.3 ft)
Next high tide : in 3h 32m at 7:27 am (9.4 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 4:50 am
Moon phase : Waxing Gibbous (76% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Dec 2045

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:4110.24:0110.59:250.99:580.16:493:55Third Quarter1Fri
2Sat4:4310.45:0810.310:320.711:000.36:503:55Third Quarter2Sat
3Sun5:4410.76:1410.211:380.46:513:54Waning Crescent3Sun
4Mon6:4311.07:1710.212:000.312:410.06:523:54Waning Crescent4Mon
5Tue7:3911.38:1510.312:570.31:39-0.46:533:54Waning Crescent5Tue
6Wed8:3111.69:0910.31:520.32:32-0.76:543:54New Moon6Wed
7Thu9:2011.79:5910.32:430.43:22-0.86:553:54New Moon7Thu
8Fri10:0711.710:4510.33:310.54:09-0.86:563:54New Moon8Fri
9Sat10:5211.611:3010.14:170.64:54-0.66:573:54New Moon9Sat
10Sun11:3511.35:020.85:37-0.36:583:54Waxing Crescent10Sun
11Mon12:139.912:1811.05:451.16:200.06:593:54Waxing Crescent11Mon
12Tue12:559.71:0210.66:291.37:020.46:593:54Waxing Crescent12Tue
13Wed1:389.51:4610.27:131.57:450.77:003:54Waxing Crescent13Wed
14Thu2:229.32:319.87:591.78:281.07:013:54First Quarter14Thu
15Fri3:089.23:199.48:481.99:131.37:023:54First Quarter15Fri
16Sat3:559.24:119.09:391.910:001.57:023:55First Quarter16Sat
17Sun4:439.25:058.810:331.910:491.67:033:55First Quarter17Sun
18Mon5:339.46:018.711:281.611:391.77:043:55Waxing Gibbous18Mon
19Tue6:229.66:558.812:211.37:043:56Waxing Gibbous19Tue
20Wed7:1110.07:479.012:291.61:120.97:053:56Waxing Gibbous20Wed
21Thu7:5810.48:379.31:181.52:010.47:053:57Waxing Gibbous21Thu
22Fri8:4510.99:249.62:061.22:48-0.17:063:57Full Moon22Fri
23Sat9:3211.410:1110.02:530.93:35-0.57:063:58Full Moon23Sat
24Sun10:1911.810:5810.33:400.64:22-0.87:073:58Full Moon24Sun
25Mon11:0712.011:4610.54:290.45:10-1.07:073:59Full Moon25Mon
26Tue11:5712.15:190.25:59-1.17:074:00Waning Gibbous26Tue
27Wed12:3610.712:4911.96:120.16:49-1.07:084:01Waning Gibbous27Wed
28Thu1:2810.81:4411.57:070.17:42-0.77:084:01Waning Gibbous28Thu
29Fri2:2210.82:4211.08:060.28:37-0.47:084:02Third Quarter29Fri
30Sat3:1910.83:4410.59:090.39:350.07:084:03Third Quarter30Sat
31Sun4:1810.84:5010.010:140.310:310.37:084:04Third Quarter31Sun
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 10:16 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 transitional phase. Tonight's moon is 76% 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 shifting between spring and neap.

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 (76% illuminated). This places Southwest Harbor, ME in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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