Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Monday, June 22, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide (tomorrow) : 12:11 pm (1.0 ft)
Next high tide (tomorrow) : in 6h 33m at 6:27 am (9.7 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 4:49 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Jan 2044

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:0710.711:419.54:341.35:070.27:084:04New Moon1Fri
2Sat11:4410.75:101.35:420.27:084:05Waxing Crescent2Sat
3Sun12:169.512:2010.75:471.36:180.27:084:06Waxing Crescent3Sun
4Mon12:539.612:5910.66:251.26:550.27:084:07Waxing Crescent4Mon
5Tue1:319.81:4010.47:071.27:340.37:084:08Waxing Crescent5Tue
6Wed2:129.92:2610.17:521.18:170.47:084:09First Quarter6Wed
7Thu2:5810.13:179.88:441.09:050.67:084:10First Quarter7Thu
8Fri3:4810.24:159.69:400.89:580.87:084:11First Quarter8Fri
9Sat4:4310.45:189.410:420.610:570.97:074:12First Quarter9Sat
10Sun5:4410.76:259.411:480.27:074:13Waxing Gibbous10Sun
11Mon6:4611.07:319.612:000.912:53-0.27:074:14Waxing Gibbous11Mon
12Tue7:4811.58:3310.01:040.71:55-0.77:064:16Waxing Gibbous12Tue
13Wed8:4811.99:3110.42:060.42:54-1.17:064:17Full Moon13Wed
14Thu9:4512.210:2610.73:050.03:49-1.47:054:18Full Moon14Thu
15Fri10:3912.411:1810.94:00-0.24:41-1.57:054:19Full Moon15Fri
16Sat11:3212.34:54-0.35:32-1.47:044:20Waning Gibbous16Sat
17Sun12:0911.012:2412.05:47-0.36:22-1.17:044:22Waning Gibbous17Sun
18Mon12:5910.91:1511.56:40-0.17:11-0.77:034:23Waning Gibbous18Mon
19Tue1:4910.82:0710.87:330.18:00-0.17:034:24Waning Gibbous19Tue
20Wed2:3910.53:0110.18:270.58:490.57:024:26Third Quarter20Wed
21Thu3:3010.23:579.49:220.89:411.17:014:27Third Quarter21Thu
22Fri4:239.94:568.910:201.110:351.67:004:28Third Quarter22Fri
23Sat5:189.75:578.511:201.211:321.97:004:29Third Quarter23Sat
24Sun6:149.56:568.412:181.26:594:31Waning Crescent24Sun
25Mon7:099.67:518.512:282.01:131.16:584:32Waning Crescent25Mon
26Tue8:009.88:408.71:211.92:030.86:574:34Waning Crescent26Tue
27Wed8:4610.19:239.02:101.72:480.66:564:35Waning Crescent27Wed
28Thu9:2910.410:039.22:531.43:290.36:554:36New Moon28Thu
29Fri10:0810.610:399.53:331.24:060.16:544:38New Moon29Fri
30Sat10:4510.811:149.84:111.04:41-0.16:534:39New Moon30Sat
31Sun11:2110.911:4910.04:470.85:15-0.26:524:40New Moon31Sun
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 9:19 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 neap phase. Tonight's moon is 58% 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 minimum.

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 First Quarter (58% illuminated). This places Southwest Harbor, ME in a neap tide cycle, so tidal ranges are near their weekly minimum 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