Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide : 12:11 pm (1.0 ft)
Next high tide : in 1h 56m at 6:27 am (9.7 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 4:49 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - May 2044

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:3712.12:2110.57:41-1.07:550.65:227:37Waxing Crescent1Sun
2Mon2:3311.73:2010.28:39-0.78:560.95:217:39Waxing Crescent2Mon
3Tue3:3411.34:249.99:41-0.210:021.15:197:40First Quarter3Tue
4Wed4:4110.85:319.810:460.111:121.25:187:41First Quarter4Wed
5Thu5:5010.56:379.911:520.35:177:42First Quarter5Thu
6Fri6:5910.37:3810.212:211.112:540.45:157:43Waxing Gibbous6Fri
7Sat8:0310.28:3410.51:260.81:520.45:147:44Waxing Gibbous7Sat
8Sun9:0010.39:2310.82:240.42:440.45:137:46Waxing Gibbous8Sun
9Mon9:5210.310:0811.03:160.13:310.55:127:47Waxing Gibbous9Mon
10Tue10:3910.310:4911.14:03-0.24:150.75:107:48Full Moon10Tue
11Wed11:2210.211:2811.14:46-0.24:550.95:097:49Full Moon11Wed
12Thu12:0210.05:27-0.25:341.15:087:50Full Moon12Thu
13Fri12:0511.012:419.86:050.06:121.45:077:51Full Moon13Fri
14Sat12:4210.81:209.66:430.26:491.65:067:52Waning Gibbous14Sat
15Sun1:2010.51:599.47:220.57:281.85:057:54Waning Gibbous15Sun
16Mon2:0010.32:399.28:020.78:092.05:047:55Waning Gibbous16Mon
17Tue2:4210.03:229.08:441.08:542.25:037:56Waning Gibbous17Tue
18Wed3:279.84:089.09:281.19:422.25:027:57Third Quarter18Wed
19Thu4:159.64:579.010:151.210:342.15:017:58Third Quarter19Thu
20Fri5:079.55:479.211:041.211:291.95:007:59Third Quarter20Fri
21Sat6:029.56:389.611:541.24:598:00Third Quarter21Sat
22Sun6:599.67:2810.112:251.512:451.04:588:01Waning Crescent22Sun
23Mon7:549.88:1810.71:201.01:350.84:578:02Waning Crescent23Mon
24Tue8:4910.19:0611.42:130.32:260.64:568:03Waning Crescent24Tue
25Wed9:4210.49:5511.93:05-0.33:160.44:568:04New Moon25Wed
26Thu10:3410.710:4512.33:56-0.94:060.24:558:05New Moon26Thu
27Fri11:2610.911:3612.64:48-1.34:580.24:548:06New Moon27Fri
28Sat12:1910.95:41-1.45:510.24:548:07New Moon28Sat
29Sun12:2912.61:1410.96:35-1.46:470.34:538:08Waxing Crescent29Sun
30Mon1:2512.42:1010.77:31-1.27:460.54:528:09Waxing Crescent30Mon
31Tue2:2312.03:0910.68:28-0.88:470.74:528:09Waxing Crescent31Tue
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 9:19 am — 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 67% 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 First Quarter (67% 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