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 5h 45m 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 - Feb 2009

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:0910.52:329.87:590.58:140.66:504:43First Quarter1Sun
2Mon2:5610.53:269.58:510.59:060.96:494:44First Quarter2Mon
3Tue3:5010.54:289.29:510.510:051.16:484:45First Quarter3Tue
4Wed4:5210.55:369.010:580.411:121.16:474:47Waxing Gibbous4Wed
5Thu5:5910.66:479.212:080.26:454:48Waxing Gibbous5Thu
6Fri7:0711.07:539.712:210.91:14-0.36:444:50Waxing Gibbous6Fri
7Sat8:1111.58:5310.31:280.52:15-0.86:434:51Waxing Gibbous7Sat
8Sun9:1012.09:4710.82:290.03:11-1.36:424:52Full Moon8Sun
9Mon10:0412.310:3811.33:26-0.54:02-1.56:404:54Full Moon9Mon
10Tue10:5612.411:2711.64:19-0.94:51-1.66:394:55Full Moon10Tue
11Wed11:4612.25:10-1.05:38-1.46:374:57Waning Gibbous11Wed
12Thu12:1411.612:3511.85:59-0.96:24-1.06:364:58Waning Gibbous12Thu
13Fri1:0011.51:2411.16:49-0.77:10-0.46:354:59Waning Gibbous13Fri
14Sat1:4711.12:1410.47:39-0.27:580.36:335:01Waning Gibbous14Sat
15Sun2:3510.73:069.78:310.38:471.06:325:02Third Quarter15Sun
16Mon3:2610.24:039.09:260.89:411.56:305:03Third Quarter16Mon
17Tue4:219.75:038.510:251.110:391.96:295:05Third Quarter17Tue
18Wed5:219.46:068.311:261.311:402.16:275:06Third Quarter18Wed
19Thu6:229.37:058.312:271.36:265:08Waning Crescent19Thu
20Fri7:199.57:598.612:392.01:211.16:245:09Waning Crescent20Fri
21Sat8:109.88:458.91:321.72:090.86:225:10Waning Crescent21Sat
22Sun8:5510.19:269.32:191.42:520.56:215:12Waning Crescent22Sun
23Mon9:3610.410:039.73:011.03:290.36:195:13New Moon23Mon
24Tue10:1310.610:3710.13:390.74:040.06:185:14New Moon24Tue
25Wed10:4910.811:1010.44:160.44:37-0.16:165:16New Moon25Wed
26Thu11:2510.811:4410.74:510.25:10-0.16:145:17New Moon26Thu
27Fri12:0210.85:280.05:45-0.16:135:18Waxing Crescent27Fri
28Sat12:1910.912:4110.66:07-0.26:220.16:115:20Waxing Crescent28Sat
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