Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Sunday, June 28, 2026
The tide is currently falling in Southwest Harbor, ME.
Next low tide (tomorrow) : in 5h 13m at 4:52 am (0.5 ft)
Next high tide (tomorrow) : 11:28 am (9.3 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 4:51 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Sep 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:1412.11:4211.77:05-0.97:30-0.55:567:09Waxing Crescent1Fri
2Sat2:0511.52:3011.47:54-0.48:21-0.25:577:07Waxing Crescent2Sat
3Sun2:5710.93:2011.08:430.29:140.35:597:05Waxing Crescent3Sun
4Mon3:5010.24:1110.59:340.810:090.76:007:03First Quarter4Mon
5Tue4:469.65:0610.110:271.311:061.06:017:02First Quarter5Tue
6Wed5:449.26:039.911:231.76:027:00First Quarter6Wed
7Thu6:448.97:019.712:051.212:211.96:036:58First Quarter7Thu
8Fri7:428.97:569.81:021.21:181.96:046:56Waxing Gibbous8Fri
9Sat8:359.18:4810.01:561.12:111.76:056:54Waxing Gibbous9Sat
10Sun9:229.39:3410.32:450.92:581.46:076:52Waxing Gibbous10Sun
11Mon10:059.710:1610.63:290.63:411.16:086:51Waxing Gibbous11Mon
12Tue10:4310.010:5510.84:090.44:210.86:096:49Full Moon12Tue
13Wed11:2010.311:3210.94:460.24:590.66:106:47Full Moon13Wed
14Thu11:5410.65:210.15:360.46:116:45Full Moon14Thu
15Fri12:0911.012:2910.85:560.06:130.26:126:43Full Moon15Fri
16Sat12:4611.01:0611.06:310.16:520.16:146:41Waning Gibbous16Sat
17Sun1:2610.91:4511.27:090.17:350.06:156:39Waning Gibbous17Sun
18Mon2:1010.72:2811.27:510.38:220.06:166:38Waning Gibbous18Mon
19Tue2:5710.43:1611.18:380.59:140.16:176:36Third Quarter19Tue
20Wed3:5110.14:1111.09:300.810:130.26:186:34Third Quarter20Wed
21Thu4:519.85:1310.910:301.011:170.26:196:32Third Quarter21Thu
22Fri5:589.76:2010.911:371.06:216:30Third Quarter22Fri
23Sat7:069.87:2811.112:250.112:460.96:226:28Waning Crescent23Sat
24Sun8:1110.28:3211.41:31-0.11:520.56:236:26Waning Crescent24Sun
25Mon9:1110.79:3211.72:32-0.52:530.06:246:24Waning Crescent25Mon
26Tue10:0511.210:2612.03:28-0.83:49-0.56:256:23New Moon26Tue
27Wed10:5511.611:1712.14:19-1.04:41-0.86:266:21New Moon27Wed
28Thu11:4311.95:07-1.05:30-0.96:286:19New Moon28Thu
29Fri12:0611.912:2811.95:53-0.86:18-0.86:296:17Waxing Crescent29Fri
30Sat12:5311.61:1311.76:38-0.47:05-0.66:306:15Waxing Crescent30Sat
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 8:10 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 98% 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 Full Moon (98% 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