Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Southwest Harbor, ME.
Next low tide : in 4h 10m at 8:28 am (-0.8 ft)
Next high tide : 3:09 pm (10.8 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 4:49 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Apr 2014

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:1512.212:4311.76:07-1.56:26-0.86:137:00Waxing Crescent1Tue
2Wed1:0012.11:3111.36:55-1.27:12-0.36:127:01Waxing Crescent2Wed
3Thu1:4611.72:1810.87:42-0.87:590.36:107:02Waxing Crescent3Thu
4Fri2:3311.13:0710.28:30-0.28:470.86:087:03Waxing Crescent4Fri
5Sat3:2110.63:589.69:200.39:381.36:067:05First Quarter5Sat
6Sun4:1310.04:539.210:130.810:331.76:047:06First Quarter6Sun
7Mon5:099.65:508.911:101.211:311.96:037:07First Quarter7Mon
8Tue6:089.36:488.912:071.36:017:08First Quarter8Tue
9Wed7:079.37:439.012:301.91:031.35:597:10Waxing Gibbous9Wed
10Thu8:029.48:339.41:261.61:541.25:577:11Waxing Gibbous10Thu
11Fri8:529.79:179.82:171.32:400.95:567:12Waxing Gibbous11Fri
12Sat9:3710.09:5810.23:030.93:220.75:547:13Waxing Gibbous12Sat
13Sun10:1910.210:3510.63:450.54:010.55:527:14Full Moon13Sun
14Mon10:5810.511:1211.04:240.14:390.35:507:16Full Moon14Mon
15Tue11:3710.711:4911.35:03-0.25:160.25:497:17Full Moon15Tue
16Wed12:1610.85:41-0.55:540.25:477:18Full Moon16Wed
17Thu12:2811.512:5810.86:22-0.76:350.25:457:19Waning Gibbous17Thu
18Fri1:0911.61:4210.77:05-0.77:190.35:447:21Waning Gibbous18Fri
19Sat1:5411.62:3010.67:52-0.68:080.45:427:22Waning Gibbous19Sat
20Sun2:4411.43:2310.48:44-0.59:030.65:407:23Third Quarter20Sun
21Mon3:4011.24:2210.29:41-0.310:040.75:397:24Third Quarter21Mon
22Tue4:4210.95:2610.210:43-0.111:100.75:377:25Third Quarter22Tue
23Wed5:4910.76:3210.311:480.05:357:27Third Quarter23Wed
24Thu6:5710.77:3610.712:190.512:53-0.15:347:28Waning Crescent24Thu
25Fri8:0310.88:3511.11:250.21:54-0.35:327:29Waning Crescent25Fri
26Sat9:0311.19:3011.62:26-0.32:50-0.45:317:30Waning Crescent26Sat
27Sun9:5911.310:2011.93:22-0.83:42-0.55:297:32New Moon27Sun
28Mon10:5011.411:0712.14:14-1.14:31-0.55:287:33New Moon28Mon
29Tue11:3811.311:5212.05:02-1.25:18-0.35:267:34New Moon29Tue
30Wed12:2511.15:49-1.16:030.05:257:35New Moon30Wed
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 11:48 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 27% 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 Crescent (27% 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