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 4h 31m 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 - Jan 2009

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:219.71:3010.26:571.37:230.57:084:05Waxing Crescent1Thu
2Fri2:009.82:1210.07:401.28:030.67:084:06First Quarter2Fri
3Sat2:439.93:009.78:271.28:470.87:084:07First Quarter3Sat
4Sun3:3010.03:549.49:201.09:380.97:084:07First Quarter4Sun
5Mon4:2210.24:549.310:190.810:341.07:084:08First Quarter5Mon
6Tue5:2010.55:599.311:220.511:351.07:084:10Waxing Gibbous6Tue
7Wed6:2110.87:049.512:270.17:084:11Waxing Gibbous7Wed
8Thu7:2311.38:079.912:380.81:29-0.57:084:12Waxing Gibbous8Thu
9Fri8:2311.89:0610.31:400.42:28-1.07:074:13Full Moon9Fri
10Sat9:2012.310:0110.82:390.03:24-1.47:074:14Full Moon10Sat
11Sun10:1512.610:5411.13:36-0.44:18-1.77:074:15Full Moon11Sun
12Mon11:0912.711:4611.44:31-0.65:10-1.87:064:16Full Moon12Mon
13Tue12:0212.55:25-0.76:00-1.67:064:17Waning Gibbous13Tue
14Wed12:3811.412:5512.16:19-0.66:51-1.27:054:19Waning Gibbous14Wed
15Thu1:2911.31:4911.47:13-0.47:41-0.77:054:20Waning Gibbous15Thu
16Fri2:2111.02:4410.78:090.08:330.07:044:21Third Quarter16Fri
17Sat3:1410.73:419.99:060.49:270.67:044:22Third Quarter17Sat
18Sun4:0910.34:429.310:060.710:231.27:034:24Third Quarter18Sun
19Mon5:0610.05:448.911:070.911:211.57:024:25Third Quarter19Mon
20Tue6:049.86:458.712:071.07:024:26Waning Crescent20Tue
21Wed7:009.87:428.712:191.71:040.97:014:28Waning Crescent21Wed
22Thu7:539.98:328.81:141.71:560.77:004:29Waning Crescent22Thu
23Fri8:4110.19:179.12:041.62:420.56:594:30Waning Crescent23Fri
24Sat9:2410.49:579.32:481.33:230.36:584:32New Moon24Sat
25Sun10:0310.610:349.53:291.14:010.26:574:33New Moon25Sun
26Mon10:4010.711:099.74:061.04:360.16:574:34New Moon26Mon
27Tue11:1510.811:429.94:420.85:090.06:564:36New Moon27Tue
28Wed11:5010.75:170.75:420.06:554:37Waxing Crescent28Wed
29Thu12:1510.112:2610.65:530.66:150.16:544:38Waxing Crescent29Thu
30Fri12:5010.31:0410.46:310.66:510.26:524:40Waxing Crescent30Fri
31Sat1:2710.41:4510.27:120.57:300.46:514:41Waxing Crescent31Sat
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