Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide : 1:05 pm (1.3 ft)
Next high tide : in 5h 58m at 7:27 am (9.4 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 4:50 am
Moon phase : Waxing Gibbous (76% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Oct 2045

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:219.62:3210.77:541.38:330.56:316:13Waning Gibbous1Sun
2Mon3:099.43:2310.58:431.59:270.76:326:11Third Quarter2Mon
3Tue4:059.24:2210.49:391.710:290.86:346:10Third Quarter3Tue
4Wed5:099.15:2810.410:441.711:350.76:356:08Third Quarter4Wed
5Thu6:179.36:3710.511:541.46:366:06Waning Crescent5Thu
6Fri7:239.77:4410.912:420.41:030.96:376:04Waning Crescent6Fri
7Sat8:2410.48:4611.31:430.02:070.36:396:02Waning Crescent7Sat
8Sun9:1911.19:4311.62:40-0.43:05-0.46:406:01Waning Crescent8Sun
9Mon10:1011.810:3611.83:32-0.83:59-1.06:415:59New Moon9Mon
10Tue10:5812.211:2711.84:21-0.94:50-1.36:425:57New Moon10Tue
11Wed11:4512.45:09-0.85:40-1.46:435:55New Moon11Wed
12Thu12:1711.612:3112.35:56-0.46:29-1.26:455:54Waxing Crescent12Thu
13Fri1:0611.21:1811.96:430.07:18-0.86:465:52Waxing Crescent13Fri
14Sat1:5610.62:0711.47:320.68:09-0.26:475:50Waxing Crescent14Sat
15Sun2:4710.02:5810.88:231.29:020.36:485:48Waxing Crescent15Sun
16Mon3:429.53:5310.29:171.79:590.96:505:47First Quarter16Mon
17Tue4:399.04:539.810:162.010:571.26:515:45First Quarter17Tue
18Wed5:398.85:549.511:162.211:561.46:525:43First Quarter18Wed
19Thu6:388.86:549.412:172.16:545:42First Quarter19Thu
20Fri7:329.07:499.512:511.41:131.96:555:40Waxing Gibbous20Fri
21Sat8:219.38:389.61:421.32:041.56:565:38Waxing Gibbous21Sat
22Sun9:049.79:239.82:261.12:491.16:575:37Waxing Gibbous22Sun
23Mon9:4310.110:0410.03:071.03:310.76:595:35Waxing Gibbous23Mon
24Tue10:1910.510:4310.13:440.94:090.47:005:34Full Moon24Tue
25Wed10:5310.811:2010.14:190.84:460.27:015:32Full Moon25Wed
26Thu11:2811.011:5710.14:540.85:230.07:035:31Full Moon26Thu
27Fri12:0411.15:300.96:01-0.17:045:29Full Moon27Fri
28Sat12:3610.112:4211.26:071.06:42-0.17:055:28Waning Gibbous28Sat
29Sun1:189.91:2511.16:491.17:270.07:075:26Waning Gibbous29Sun
30Mon2:049.82:1311.07:361.28:180.17:085:25Waning Gibbous30Mon
31Tue2:569.63:0810.88:291.49:140.37:095:23Third Quarter31Tue
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 10:16 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 76% 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 Waxing Gibbous (76% 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