Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in Southwest Harbor, ME.
Next low tide : in 4h 27m at 1:57 pm (1.6 ft)
Next high tide : 8:38 pm (10.4 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 4:50 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Nov 2005

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:4610.910:1310.33:120.73:390.06:104:23New Moon1Tue
2Wed10:2211.210:5210.33:480.74:17-0.26:124:21New Moon2Wed
3Thu10:5911.411:3210.24:250.74:57-0.46:134:20New Moon3Thu
4Fri11:4011.55:040.85:39-0.46:144:19Waxing Crescent4Fri
5Sat12:1610.112:2411.45:470.96:26-0.36:164:17Waxing Crescent5Sat
6Sun1:049.91:1411.26:361.17:19-0.16:174:16Waxing Crescent6Sun
7Mon1:589.72:1010.97:311.38:170.26:184:15First Quarter7Mon
8Tue2:579.53:1310.78:331.49:200.36:204:14First Quarter8Tue
9Wed4:029.54:2110.59:411.410:250.46:214:12First Quarter9Wed
10Thu5:099.75:3110.410:521.211:290.36:224:11First Quarter10Thu
11Fri6:1310.26:3710.512:000.76:244:10Waxing Gibbous11Fri
12Sat7:1210.77:3810.712:290.11:020.16:254:09Waxing Gibbous12Sat
13Sun8:0511.38:3410.91:25-0.11:58-0.46:264:08Waxing Gibbous13Sun
14Mon8:5511.79:2610.92:16-0.22:50-0.86:284:07Full Moon14Mon
15Tue9:4111.910:1510.93:04-0.13:39-1.06:294:06Full Moon15Tue
16Wed10:2611.911:0110.73:510.14:25-1.06:304:05Full Moon16Wed
17Thu11:0911.711:4710.44:350.45:10-0.76:324:04Full Moon17Thu
18Fri11:5311.45:190.85:55-0.46:334:03Waning Gibbous18Fri
19Sat12:3210.012:3710.96:041.26:400.16:344:02Waning Gibbous19Sat
20Sun1:179.61:2210.56:491.57:260.66:354:02Waning Gibbous20Sun
21Mon2:049.22:1110.07:371.98:150.96:374:01Waning Gibbous21Mon
22Tue2:548.93:029.68:282.19:051.26:384:00Third Quarter22Tue
23Wed3:468.83:569.39:222.39:571.46:393:59Third Quarter23Wed
24Thu4:398.84:529.110:182.210:481.56:403:59Third Quarter24Thu
25Fri5:319.05:479.111:142.011:381.56:423:58Third Quarter25Fri
26Sat6:209.36:409.112:071.76:433:58Waning Crescent26Sat
27Sun7:069.77:309.312:251.412:571.26:443:57Waning Crescent27Sun
28Mon7:4910.28:169.51:091.21:420.76:453:56Waning Crescent28Mon
29Tue8:3010.69:019.81:521.12:260.26:463:56Waning Crescent29Tue
30Wed9:1011.19:4410.02:330.93:09-0.26:483:56New 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 5:17 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 84% 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 Waxing Gibbous (84% 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