Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Monday, June 8, 2026
The tide is currently falling in Southwest Harbor, ME.
Next low tide : in 5h 02m at 10:37 am (0.9 ft)
Next high tide : 5:20 pm (9.9 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 4:49 am
Moon phase : Third Quarter (47% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Feb 2020

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:299.43:528.89:191.59:341.66:514:42First Quarter1Sat
2Sun4:179.34:468.610:121.610:251.86:504:43First Quarter2Sun
3Mon5:099.45:458.511:091.511:211.86:494:44First Quarter3Mon
4Tue6:059.66:458.612:081.26:474:46Waxing Gibbous4Tue
5Wed7:009.97:419.012:181.71:040.76:464:47Waxing Gibbous5Wed
6Thu7:5410.58:349.51:131.31:570.16:454:49Waxing Gibbous6Thu
7Fri8:4611.19:2310.02:060.82:47-0.56:444:50Full Moon7Fri
8Sat9:3511.710:1110.62:560.33:35-1.06:424:51Full Moon8Sat
9Sun10:2412.210:5811.13:46-0.24:22-1.46:414:53Full Moon9Sun
10Mon11:1312.511:4511.54:35-0.75:10-1.76:404:54Full Moon10Mon
11Tue12:0312.55:25-0.95:58-1.76:384:56Waning Gibbous11Tue
12Wed12:3411.712:5412.26:17-1.06:47-1.46:374:57Waning Gibbous12Wed
13Thu1:2411.71:4811.77:11-0.97:38-1.06:364:58Waning Gibbous13Thu
14Fri2:1711.62:4511.18:08-0.78:33-0.46:345:00Third Quarter14Fri
15Sat3:1311.33:4610.49:09-0.39:310.26:335:01Third Quarter15Sat
16Sun4:1310.94:539.810:140.010:350.76:315:03Third Quarter16Sun
17Mon5:1710.66:019.411:210.211:411.06:305:04Third Quarter17Mon
18Tue6:2310.57:089.312:270.26:285:05Waning Crescent18Tue
19Wed7:2610.58:089.412:451.01:290.16:275:07Waning Crescent19Wed
20Thu8:2310.69:019.61:440.92:240.06:255:08Waning Crescent20Thu
21Fri9:1410.89:489.82:370.83:12-0.26:235:09New Moon21Fri
22Sat9:5910.910:2910.03:240.63:55-0.26:225:11New Moon22Sat
23Sun10:4010.911:0710.14:060.54:34-0.26:205:12New Moon23Sun
24Mon11:1810.811:4210.14:450.45:100.06:195:13New Moon24Mon
25Tue11:5410.75:220.55:440.16:175:15Waxing Crescent25Tue
26Wed12:1610.112:3010.45:570.66:170.46:155:16Waxing Crescent26Wed
27Thu12:5010.11:0610.16:330.76:500.76:145:17Waxing Crescent27Thu
28Fri1:2410.01:439.77:100.87:261.06:125:19Waxing Crescent28Fri
29Sat2:019.92:249.37:501.08:041.36:105:20Waxing Crescent29Sat
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 1:58 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 neap phase. Tonight's moon is 47% 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 minimum.

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 (47% illuminated). This places Southwest Harbor, ME in a neap tide cycle, so tidal ranges are near their weekly minimum 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