Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Monday, June 29, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide : 4:56 pm (1.7 ft)
Next high tide : in 2h 41m at 11:28 am (9.3 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 4:52 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Feb 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:529.98:289.01:131.51:510.76:514:41Waning Crescent1Tue
2Wed8:3810.29:129.32:011.42:370.46:504:43Waning Crescent2Wed
3Thu9:2110.49:539.52:451.23:180.26:494:44New Moon3Thu
4Fri10:0010.710:309.73:261.03:560.06:484:46New Moon4Fri
5Sat10:3710.911:069.94:030.84:32-0.16:464:47New Moon5Sat
6Sun11:1311.011:4010.14:400.65:07-0.26:454:48New Moon6Sun
7Mon11:4911.05:160.55:42-0.36:444:50Waxing Crescent7Mon
8Tue12:1610.312:2711.05:530.46:18-0.36:434:51Waxing Crescent8Tue
9Wed12:5310.41:0710.86:330.36:56-0.26:414:53Waxing Crescent9Wed
10Thu1:3310.61:5110.67:160.37:390.06:404:54Waxing Crescent10Thu
11Fri2:1710.62:4010.38:050.38:260.26:394:55First Quarter11Fri
12Sat3:0710.63:369.99:000.39:200.46:374:57First Quarter12Sat
13Sun4:0310.64:399.710:010.310:200.66:364:58First Quarter13Sun
14Mon5:0510.75:479.611:080.211:260.76:345:00Waxing Gibbous14Mon
15Tue6:1110.96:559.712:16-0.16:335:01Waxing Gibbous15Tue
16Wed7:1711.28:0010.112:340.51:21-0.56:315:02Waxing Gibbous16Wed
17Thu8:1911.68:5910.61:380.22:21-1.06:305:04Waxing Gibbous17Thu
18Fri9:1712.09:5311.02:38-0.33:16-1.46:285:05Full Moon18Fri
19Sat10:1012.310:4411.33:33-0.64:08-1.66:275:06Full Moon19Sat
20Sun11:0112.311:3211.54:25-0.94:57-1.56:255:08Full Moon20Sun
21Mon11:5012.15:14-0.95:44-1.36:245:09Waning Gibbous21Mon
22Tue12:1911.412:3811.76:03-0.76:30-0.96:225:11Waning Gibbous22Tue
23Wed1:0511.21:2611.16:52-0.47:15-0.36:215:12Waning Gibbous23Wed
24Thu1:5110.82:1510.47:410.08:020.36:195:13Waning Gibbous24Thu
25Fri2:3810.43:069.88:310.58:510.96:175:15Third Quarter25Fri
26Sat3:2810.04:019.29:240.99:431.46:165:16Third Quarter26Sat
27Sun4:219.64:598.710:211.210:391.86:145:17Third Quarter27Sun
28Mon5:189.46:008.511:201.311:371.96:125:19Third Quarter28Mon
29Tue6:179.36:588.612:191.36:115:20Waning Crescent29Tue
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 2:12 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 spring phase. Tonight's moon is 100% 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 Full Moon (100% 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