Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in Southwest Harbor, ME.
Next low tide : in 4h 26m at 8:52 pm (1.3 ft)
Next high tide (tomorrow) : 3:24 am (10.3 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 4:55 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Nov 2058

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:5012.05:15-0.35:46-1.17:105:22Full Moon1Fri
2Sat12:2211.112:3411.86:000.06:32-0.87:125:21Waning Gibbous2Sat
3Sun1:0810.712:1711.55:440.56:18-0.46:134:20Waning Gibbous3Sun
4Mon12:5410.21:0211.06:291.07:040.16:144:18Waning Gibbous4Mon
5Tue1:429.71:4910.47:161.57:530.66:164:17Waning Gibbous5Tue
6Wed2:329.32:4010.08:061.98:441.06:174:16Third Quarter6Wed
7Thu3:259.03:349.69:002.29:381.36:184:15Third Quarter7Thu
8Fri4:208.84:329.39:572.310:341.46:204:13Third Quarter8Fri
9Sat5:178.85:309.310:552.211:281.46:214:12Third Quarter9Sat
10Sun6:109.06:259.311:512.06:224:11Waning Crescent10Sun
11Mon6:599.47:169.512:181.312:431.66:244:10Waning Crescent11Mon
12Tue7:439.88:039.81:041.11:291.16:254:09Waning Crescent12Tue
13Wed8:2310.38:4610.11:460.82:120.66:264:08Waning Crescent13Wed
14Thu9:0210.89:2710.32:260.62:530.16:284:07New Moon14Thu
15Fri9:3911.210:0810.53:040.53:33-0.36:294:06New Moon15Fri
16Sat10:1811.610:5010.63:430.44:14-0.66:304:05New Moon16Sat
17Sun10:5911.811:3310.64:230.44:57-0.86:324:04New Moon17Sun
18Mon11:4211.95:060.45:43-0.86:334:03Waxing Crescent18Mon
19Tue12:2010.512:3011.85:530.66:32-0.76:344:02Waxing Crescent19Tue
20Wed1:1110.31:2211.56:450.87:27-0.46:354:01Waxing Crescent20Wed
21Thu2:0610.12:2011.27:420.98:26-0.26:374:01First Quarter21Thu
22Fri3:079.93:2410.88:461.19:290.06:384:00First Quarter22Fri
23Sat4:129.94:3210.69:541.110:330.16:393:59First Quarter23Sat
24Sun5:1810.15:4110.511:040.911:370.16:403:59First Quarter24Sun
25Mon6:2110.56:4710.512:100.56:423:58Waxing Gibbous25Mon
26Tue7:1910.97:4710.612:360.01:110.06:433:57Waxing Gibbous26Tue
27Wed8:1211.38:4210.71:310.02:06-0.56:443:57Waxing Gibbous27Wed
28Thu9:0111.69:3310.72:220.02:57-0.86:453:56Full Moon28Thu
29Fri9:4611.810:2010.73:100.13:45-0.96:463:56Full Moon29Fri
30Sat10:3011.711:0510.53:550.34:29-0.86:483:56Full Moon30Sat
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 12:08 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 72% 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 Waning Gibbous (72% 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