Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide : 8:52 pm (1.3 ft)
Next high tide : in 2h 20m at 3:13 pm (10.0 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 4:55 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Apr 1993

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:5410.25:379.510:560.511:191.05:136:00First Quarter1Thu
2Fri6:0010.56:4010.111:590.15:116:01Waxing Gibbous2Fri
3Sat7:0410.97:3910.812:240.412:59-0.35:106:02Waxing Gibbous3Sat
4Sun9:0511.49:3411.51:26-0.32:55-0.86:087:04Waxing Gibbous4Sun
5Mon10:0111.810:2512.23:23-1.03:48-1.16:067:05Full Moon5Mon
6Tue10:5412.111:1512.74:17-1.64:39-1.36:047:06Full Moon6Tue
7Wed11:4612.25:09-1.95:28-1.36:027:07Full Moon7Wed
8Thu12:0412.812:3812.06:00-2.06:18-1.06:017:08Waning Gibbous8Thu
9Fri12:5412.71:2911.66:52-1.87:09-0.55:597:10Waning Gibbous9Fri
10Sat1:4512.32:2211.07:44-1.38:020.05:577:11Waning Gibbous10Sat
11Sun2:3711.73:1810.48:39-0.78:570.65:557:12Waning Gibbous11Sun
12Mon3:3311.04:169.99:36-0.19:561.15:547:13Third Quarter12Mon
13Tue4:3310.45:179.410:350.510:581.55:527:15Third Quarter13Tue
14Wed5:369.96:199.211:360.95:507:16Third Quarter14Wed
15Thu6:399.67:189.212:021.612:361.15:497:17Third Quarter15Thu
16Fri7:399.58:129.41:021.51:311.15:477:18Waning Crescent16Fri
17Sat8:339.69:009.71:571.32:211.05:457:19Waning Crescent17Sat
18Sun9:229.79:4210.02:471.03:060.95:437:21Waning Crescent18Sun
19Mon10:059.910:2110.33:310.73:460.95:427:22Waning Crescent19Mon
20Tue10:4510.010:5610.64:110.44:230.85:407:23New Moon20Tue
21Wed11:2210.111:3010.74:490.24:580.85:397:24New Moon21Wed
22Thu11:5810.15:240.15:320.95:377:26New Moon22Thu
23Fri12:0410.812:3410.06:000.06:071.05:357:27New Moon23Fri
24Sat12:3910.91:1110.06:360.06:431.15:347:28Waxing Crescent24Sat
25Sun1:1610.91:509.97:140.17:231.15:327:29Waxing Crescent25Sun
26Mon1:5710.92:339.87:560.18:071.25:317:30Waxing Crescent26Mon
27Tue2:4210.83:219.78:420.28:561.25:297:32Waxing Crescent27Tue
28Wed3:3310.64:149.89:340.29:531.25:287:33First Quarter28Wed
29Thu4:3010.55:139.910:310.310:551.15:267:34First Quarter29Thu
30Fri5:3310.56:1410.211:310.25:257:35First Quarter30Fri
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 6:02 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 transitional phase. Tonight's moon is 72% 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 Waning Gibbous (72% 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