Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Saturday, June 6, 2026
The tide is currently falling in Southwest Harbor, ME.
Next low tide : in 4h 31m at 9:21 pm (1.9 ft)
Next high tide (tomorrow) : 3:54 am (10.0 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 4:50 am
Moon phase : Third Quarter (67% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Feb 2030

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:1911.89:5510.72:400.03:18-1.06:504:42New Moon1Fri
2Sat10:1011.910:4310.93:33-0.34:07-1.26:494:44New Moon2Sat
3Sun10:5811.911:2811.04:23-0.44:53-1.16:484:45New Moon3Sun
4Mon11:4411.65:09-0.45:36-0.86:474:47Waxing Crescent4Mon
5Tue12:1111.012:2811.25:54-0.36:18-0.56:464:48Waxing Crescent5Tue
6Wed12:5310.81:1110.76:390.06:590.06:444:49Waxing Crescent6Wed
7Thu1:3410.61:5510.17:230.47:400.56:434:51Waxing Crescent7Thu
8Fri2:1710.22:419.58:090.78:241.16:424:52First Quarter8Fri
9Sat3:029.93:319.08:571.19:111.56:404:54First Quarter9Sat
10Sun3:519.54:258.69:501.410:031.96:394:55First Quarter10Sun
11Mon4:459.35:248.310:481.511:002.06:384:56First Quarter11Mon
12Tue5:429.36:248.311:471.511:582.06:364:58Waxing Gibbous12Tue
13Wed6:409.47:208.512:431.26:354:59Waxing Gibbous13Wed
14Thu7:339.88:108.912:531.81:340.96:335:01Waxing Gibbous14Thu
15Fri8:2210.28:559.41:431.42:200.46:325:02Waxing Gibbous15Fri
16Sat9:0610.79:3610.02:290.93:020.06:305:03Full Moon16Sat
17Sun9:4811.110:1510.53:120.43:41-0.46:295:05Full Moon17Sun
18Mon10:2911.510:5411.03:54-0.14:20-0.86:275:06Full Moon18Mon
19Tue11:1111.711:3511.44:36-0.55:00-0.96:265:07Full Moon19Tue
20Wed11:5511.75:19-0.85:41-0.96:245:09Waning Gibbous20Wed
21Thu12:1711.712:4011.56:05-0.96:25-0.86:235:10Waning Gibbous21Thu
22Fri1:0211.71:3011.16:54-0.97:13-0.46:215:11Waning Gibbous22Fri
23Sat1:5111.62:2310.67:47-0.78:050.06:195:13Third Quarter23Sat
24Sun2:4611.33:2310.08:46-0.39:040.46:185:14Third Quarter24Sun
25Mon3:4711.04:309.69:510.010:100.86:165:16Third Quarter25Mon
26Tue4:5410.75:419.411:000.211:210.96:145:17Third Quarter26Tue
27Wed6:0510.66:519.512:100.16:135:18Waning Crescent27Wed
28Thu7:1310.77:549.812:310.81:15-0.16:115:19Waning Crescent28Thu
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 12:37 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 67% 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 Third Quarter (67% 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