Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Thursday, July 2, 2026
The tide is currently falling in Southwest Harbor, ME.
Next low tide : in 1h 32m at 6:49 pm (1.6 ft)
Next high tide (tomorrow) : 1:21 am (10.7 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 4:53 am
Moon phase : Waning Gibbous (94% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Oct 1996

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:1311.02:3011.47:550.28:28-0.26:316:13Waning Gibbous1Tue
2Wed3:0510.43:2110.88:460.79:210.36:326:12Third Quarter2Wed
3Thu3:589.84:1510.39:391.310:160.86:346:10Third Quarter3Thu
4Fri4:559.45:129.910:351.611:131.16:356:08Third Quarter4Fri
5Sat5:539.16:119.711:341.86:366:06Third Quarter5Sat
6Sun6:519.17:099.612:111.212:321.86:376:04Waning Crescent6Sun
7Mon7:459.28:039.71:061.21:271.66:386:03Waning Crescent7Mon
8Tue8:349.58:5210.01:561.02:171.36:406:01Waning Crescent8Tue
9Wed9:189.99:3610.22:420.83:020.96:415:59Waning Crescent9Wed
10Thu9:5810.310:1710.43:230.63:430.66:425:57New Moon10Thu
11Fri10:3510.610:5510.64:010.44:220.36:435:55New Moon11Fri
12Sat11:1111.011:3310.74:370.34:590.06:455:54New Moon12Sat
13Sun11:4611.25:130.35:36-0.26:465:52New Moon13Sun
14Mon12:1110.712:2311.45:490.36:15-0.36:475:50Waxing Crescent14Mon
15Tue12:5010.71:0311.56:280.36:57-0.36:485:49Waxing Crescent15Tue
16Wed1:3310.61:4611.47:100.47:43-0.36:505:47Waxing Crescent16Wed
17Thu2:2010.42:3511.37:570.68:33-0.26:515:45Waxing Crescent17Thu
18Fri3:1210.23:2911.18:500.89:300.06:525:44First Quarter18Fri
19Sat4:0910.14:2910.99:500.910:310.16:535:42First Quarter19Sat
20Sun5:1310.05:3510.810:560.911:360.16:555:40First Quarter20Sun
21Mon6:1910.26:4410.812:040.76:565:39Waxing Gibbous21Mon
22Tue7:2310.67:4911.012:41-0.11:110.36:575:37Waxing Gibbous22Tue
23Wed8:2411.18:5011.31:42-0.32:13-0.36:595:36Waxing Gibbous23Wed
24Thu9:1911.69:4611.52:39-0.63:10-0.87:005:34Waxing Gibbous24Thu
25Fri10:1012.010:3811.73:32-0.74:02-1.17:015:32Full Moon25Fri
26Sat10:5812.211:2811.64:22-0.84:52-1.37:025:31Full Moon26Sat
27Sun10:4412.211:1511.44:09-0.64:40-1.26:044:29Full Moon27Sun
28Mon11:2912.04:55-0.35:26-1.06:054:28Waning Gibbous28Mon
29Tue12:0211.012:1411.75:410.16:12-0.66:064:27Waning Gibbous29Tue
30Wed12:4810.61:0011.26:260.66:59-0.16:084:25Waning Gibbous30Wed
31Thu1:3510.11:4710.77:141.17:470.46:094:24Waning Gibbous31Thu
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 10:05 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 spring phase. Tonight's moon is 94% 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 Waning Gibbous (94% 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