Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Saturday, June 6, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide : 9:21 pm (1.9 ft)
Next high tide : in 1h 34m at 3:46 pm (9.4 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 2023

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:3510.08:178.912:551.61:390.66:514:42Waxing Gibbous1Wed
2Thu8:2710.19:059.01:481.52:290.56:504:43Waxing Gibbous2Thu
3Fri9:1310.39:489.22:361.43:130.36:484:45Full Moon3Fri
4Sat9:5410.510:269.43:191.23:530.26:474:46Full Moon4Sat
5Sun10:3310.611:029.63:581.14:300.16:464:48Full Moon5Sun
6Mon11:0810.611:369.74:351.05:040.16:454:49Full Moon6Mon
7Tue11:4310.65:100.95:360.26:434:50Full Moon7Tue
8Wed12:099.812:1710.55:440.96:080.36:424:52Waning Gibbous8Wed
9Thu12:419.912:5210.36:190.86:410.46:414:53Waning Gibbous9Thu
10Fri1:1510.01:3010.06:570.87:160.66:394:55Waning Gibbous10Fri
11Sat1:5210.12:119.77:380.87:550.86:384:56Waning Gibbous11Sat
12Sun2:3310.12:589.48:240.88:391.06:374:57Third Quarter12Sun
13Mon3:2110.13:539.09:170.89:311.36:354:59Third Quarter13Mon
14Tue4:1610.14:568.810:180.810:321.46:345:00Third Quarter14Tue
15Wed5:1810.26:058.911:250.611:391.36:325:02Waning Crescent15Wed
16Thu6:2510.57:139.212:340.26:315:03Waning Crescent16Thu
17Fri7:3111.08:179.712:471.01:38-0.36:295:04Waning Crescent17Fri
18Sat8:3311.69:1410.41:510.52:37-0.96:285:06Waning Crescent18Sat
19Sun9:3012.110:0711.02:51-0.23:31-1.46:265:07New Moon19Sun
20Mon10:2412.510:5811.53:46-0.74:22-1.76:255:08New Moon20Mon
21Tue11:1612.611:4711.84:39-1.15:11-1.76:235:10New Moon21Tue
22Wed12:0712.35:30-1.25:59-1.56:215:11Waxing Crescent22Wed
23Thu12:3511.812:5811.86:22-1.16:47-1.06:205:12Waxing Crescent23Thu
24Fri1:2311.61:5011.17:14-0.87:35-0.36:185:14Waxing Crescent24Fri
25Sat2:1311.22:4410.38:07-0.38:260.46:175:15First Quarter25Sat
26Sun3:0510.73:419.69:040.29:211.16:155:16First Quarter26Sun
27Mon4:0010.14:428.910:030.710:201.76:135:18First Quarter27Mon
28Tue5:009.75:478.611:061.011:222.06:115:19First Quarter28Tue
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 6:33 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 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