Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Saturday, June 13, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide (tomorrow) : 3:52 am (-1.1 ft)
Next high tide : in 1h 31m at 9:47 pm (12.2 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 4:48 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Jul 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:2610.68:4912.01:50-0.42:060.04:538:20Waning Crescent1Fri
2Sat9:2710.89:4512.32:50-0.83:05-0.14:548:20Waning Crescent2Sat
3Sun10:2411.010:3912.53:47-1.14:01-0.24:548:20New Moon3Sun
4Mon11:1811.211:3212.54:41-1.34:55-0.24:558:20New Moon4Mon
5Tue12:0911.25:32-1.35:47-0.14:568:19New Moon5Tue
6Wed12:2212.312:5911.16:22-1.16:380.14:568:19Waxing Crescent6Wed
7Thu1:1212.01:4811.07:11-0.87:280.44:578:19Waxing Crescent7Thu
8Fri2:0111.52:3710.77:59-0.48:180.74:588:18Waxing Crescent8Fri
9Sat2:5011.03:2510.58:460.09:091.04:598:18Waxing Crescent9Sat
10Sun3:4010.44:1410.29:340.510:001.24:598:17First Quarter10Sun
11Mon4:329.95:0310.010:220.910:531.45:008:17First Quarter11Mon
12Tue5:259.55:549.911:121.311:481.55:018:16First Quarter12Tue
13Wed6:209.26:459.912:031.55:028:15First Quarter13Wed
14Thu7:159.07:3610.012:421.412:541.75:038:15Waxing Gibbous14Thu
15Fri8:099.08:2510.11:351.31:451.75:048:14Waxing Gibbous15Fri
16Sat8:599.19:1110.42:251.02:331.65:048:13Waxing Gibbous16Sat
17Sun9:469.49:5510.73:110.73:181.45:058:13Waxing Gibbous17Sun
18Mon10:299.710:3711.03:550.44:011.25:068:12Full Moon18Mon
19Tue11:1110.011:1811.34:360.14:431.05:078:11Full Moon19Tue
20Wed11:5110.311:5911.55:16-0.25:250.75:088:10Full Moon20Wed
21Thu12:3210.65:57-0.46:070.55:098:09Full Moon21Thu
22Fri12:4211.71:1410.96:38-0.66:520.35:108:08Waning Gibbous22Fri
23Sat1:2711.71:5911.17:21-0.67:400.25:118:07Waning Gibbous23Sat
24Sun2:1411.62:4611.28:07-0.68:310.15:128:06Waning Gibbous24Sun
25Mon3:0511.33:3711.38:56-0.49:260.15:138:05Third Quarter25Mon
26Tue4:0011.04:3211.49:49-0.210:250.15:148:04Third Quarter26Tue
27Wed5:0010.65:3011.410:460.011:280.05:168:03Third Quarter27Wed
28Thu6:0410.36:3211.411:470.35:178:02Waning Crescent28Thu
29Fri7:1010.27:3511.512:33-0.112:510.45:188:01Waning Crescent29Fri
30Sat8:1510.38:3611.71:38-0.31:540.45:198:00Waning Crescent30Sat
31Sun9:1610.49:3411.92:39-0.52:540.25:207:58Waning Crescent31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8413564)

Common Questions About Southwest Harbor, ME Tides

Show All
What time does the tide turn (slack tide) in Southwest Harbor, ME today?

Slack tide in Southwest Harbor, ME is approximately 12:49 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 3% 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 New Moon (3% 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