Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Southwest Harbor, ME.
Next low tide : in 2h 18m at 11:15 am (0.6 ft)
Next high tide : 5:59 pm (10.5 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 - Nov 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:239.61:2710.56:551.57:270.67:115:22Waxing Crescent1Sat
2Sun1:039.31:0710.26:341.87:080.96:124:21Waxing Crescent2Sun
3Mon1:459.01:509.97:162.17:531.26:134:19Waxing Crescent3Mon
4Tue2:318.82:389.68:032.28:401.36:154:18First Quarter4Tue
5Wed3:208.73:299.48:542.39:311.46:164:17First Quarter5Wed
6Thu4:128.74:249.49:492.310:231.46:174:16First Quarter6Thu
7Fri5:069.05:219.410:462.011:151.26:194:14First Quarter7Fri
8Sat5:589.46:179.711:421.56:204:13Waxing Gibbous8Sat
9Sun6:4710.07:1010.012:050.912:350.96:214:12Waxing Gibbous9Sun
10Mon7:3410.78:0210.412:540.61:260.26:234:11Waxing Gibbous10Mon
11Tue8:2011.48:5110.71:410.32:15-0.56:244:10Full Moon11Tue
12Wed9:0612.09:4111.02:280.03:04-1.16:254:09Full Moon12Wed
13Thu9:5312.410:3011.13:15-0.23:53-1.46:274:08Full Moon13Thu
14Fri10:4212.711:2111.14:04-0.24:44-1.66:284:07Full Moon14Fri
15Sat11:3312.64:55-0.15:36-1.56:294:06Waning Gibbous15Sat
16Sun12:1410.912:2712.45:490.16:32-1.26:314:05Waning Gibbous16Sun
17Mon1:1010.71:2511.96:460.47:30-0.86:324:04Waning Gibbous17Mon
18Tue2:1010.42:2611.47:480.78:31-0.36:334:03Third Quarter18Tue
19Wed3:1310.13:3210.88:540.99:340.16:344:02Third Quarter19Wed
20Thu4:1810.04:4010.410:021.010:370.46:364:01Third Quarter20Thu
21Fri5:2210.15:4710.111:090.911:380.56:374:01Third Quarter21Fri
22Sat6:2210.36:4910.012:130.76:384:00Waning Crescent22Sat
23Sun7:1610.57:479.912:350.71:100.46:393:59Waning Crescent23Sun
24Mon8:0610.78:389.91:270.82:020.26:413:59Waning Crescent24Mon
25Tue8:5110.89:249.92:140.92:480.06:423:58New Moon25Tue
26Wed9:3210.910:079.82:581.03:31-0.16:433:57New Moon26Wed
27Thu10:1110.910:469.73:381.14:110.06:443:57New Moon27Thu
28Fri10:4810.811:249.64:161.24:490.16:463:56New Moon28Fri
29Sat11:2510.74:541.45:260.36:473:56New Moon29Sat
30Sun12:019.512:0210.55:301.66:030.56:483:56Waxing Crescent30Sun
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 2:37 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 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