Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Wednesday, June 17, 2026
The tide is currently falling in Southwest Harbor, ME.
Next low tide : in 2h 03m at 6:38 am (-1.4 ft)
Next high tide : 1:16 pm (11.0 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 4:48 am
Moon phase : Waxing Crescent (9% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Jun 2014

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:3610.92:1210.07:350.27:481.44:528:10Waxing Crescent1Sun
2Mon2:1810.62:549.88:170.58:311.64:518:10Waxing Crescent2Mon
3Tue3:0210.23:389.68:590.79:171.74:518:11Waxing Crescent3Tue
4Wed3:479.94:249.69:431.010:051.84:508:12First Quarter4Wed
5Thu4:369.65:119.610:281.210:561.84:508:13First Quarter5Thu
6Fri5:279.46:009.711:161.311:491.74:508:13First Quarter6Fri
7Sat6:219.36:509.912:061.34:498:14First Quarter7Sat
8Sun7:159.37:4010.212:421.412:561.34:498:15Waxing Gibbous8Sun
9Mon8:099.58:2810.71:351.01:461.14:498:15Waxing Gibbous9Mon
10Tue9:019.89:1611.22:260.52:360.94:498:16Waxing Gibbous10Tue
11Wed9:5110.210:0411.73:15-0.13:250.64:488:16Full Moon11Wed
12Thu10:4010.610:5212.24:03-0.64:140.34:488:17Full Moon12Thu
13Fri11:2910.911:4112.54:52-1.05:030.04:488:18Full Moon13Fri
14Sat12:1911.25:41-1.35:55-0.14:488:18Full Moon14Sat
15Sun12:3112.61:1011.46:32-1.46:48-0.24:488:18Waning Gibbous15Sun
16Mon1:2412.52:0311.47:24-1.47:43-0.24:488:19Waning Gibbous16Mon
17Tue2:1912.32:5911.48:18-1.28:42-0.14:488:19Waning Gibbous17Tue
18Wed3:1711.83:5611.49:14-0.99:430.14:488:20Third Quarter18Wed
19Thu4:1711.44:5611.310:12-0.510:460.24:488:20Third Quarter19Thu
20Fri5:2110.95:5611.211:11-0.111:500.24:498:20Third Quarter20Fri
21Sat6:2510.56:5611.212:120.24:498:20Waning Crescent21Sat
22Sun7:2910.27:5511.212:540.11:120.44:498:21Waning Crescent22Sun
23Mon8:3010.18:5011.31:540.02:090.64:498:21Waning Crescent23Mon
24Tue9:2610.19:4111.32:50-0.13:020.74:508:21Waning Crescent24Tue
25Wed10:1710.210:2811.33:41-0.23:520.74:508:21New Moon25Wed
26Thu11:0310.211:1211.34:28-0.34:370.84:508:21New Moon26Thu
27Fri11:4610.211:5311.25:11-0.25:200.94:518:21New Moon27Fri
28Sat12:2710.15:52-0.16:011.14:518:21New Moon28Sat
29Sun12:3211.01:0510.16:310.16:401.24:528:21Waxing Crescent29Sun
30Mon1:1110.81:4410.07:080.37:191.34:528:21Waxing Crescent30Mon
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 9:57 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 spring phase. Tonight's moon is 9% 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 Waxing Crescent (9% 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