Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Southwest Harbor, ME.
Next low tide : in 34m at 8:28 am (-0.8 ft)
Next high tide : 3:09 pm (10.8 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 4:49 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Jan 2014

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:5612.710:3311.53:17-0.63:56-1.87:084:04New Moon1Wed
2Thu10:4913.011:2611.74:11-0.94:48-2.07:084:05New Moon2Thu
3Fri11:4212.95:05-1.05:40-2.07:084:06Waxing Crescent3Fri
4Sat12:1811.812:3612.75:59-1.06:33-1.87:084:07Waxing Crescent4Sat
5Sun1:1211.71:3112.26:56-0.87:27-1.37:084:08Waxing Crescent5Sun
6Mon2:0711.52:2911.57:54-0.58:23-0.87:084:09First Quarter6Mon
7Tue3:0411.23:3010.88:55-0.19:21-0.27:084:10First Quarter7Tue
8Wed4:0410.94:3310.29:580.210:210.37:084:11First Quarter8Wed
9Thu5:0410.75:389.711:010.411:210.77:074:13First Quarter9Thu
10Fri6:0510.56:419.512:040.47:074:14Waxing Gibbous10Fri
11Sat7:0310.57:399.512:210.91:020.37:074:15Waxing Gibbous11Sat
12Sun7:5610.58:329.51:160.91:560.27:064:16Waxing Gibbous12Sun
13Mon8:4510.79:189.62:070.92:430.17:064:17Waxing Gibbous13Mon
14Tue9:2810.810:009.82:520.83:260.07:054:18Full Moon14Tue
15Wed10:0810.810:389.93:340.84:05-0.17:054:20Full Moon15Wed
16Thu10:4610.911:149.94:130.74:41-0.17:044:21Full Moon16Thu
17Fri11:2110.811:4910.04:490.75:160.07:044:22Full Moon17Fri
18Sat11:5610.75:240.85:490.17:034:23Waning Gibbous18Sat
19Sun12:2310.012:3210.56:000.86:230.27:024:25Waning Gibbous19Sun
20Mon12:5810.01:0810.36:360.96:580.37:024:26Waning Gibbous20Mon
21Tue1:3410.01:4710.17:150.97:360.57:014:27Waning Gibbous21Tue
22Wed2:1410.12:319.87:580.98:170.67:004:29Third Quarter22Wed
23Thu2:5810.13:209.58:470.99:050.86:594:30Third Quarter23Thu
24Fri3:4810.14:169.49:410.89:590.96:594:31Third Quarter24Fri
25Sat4:4410.35:189.310:420.610:590.96:584:33Third Quarter25Sat
26Sun5:4410.66:249.511:460.36:574:34Waning Crescent26Sun
27Mon6:4711.07:279.912:020.712:49-0.26:564:35Waning Crescent27Mon
28Tue7:4811.68:2710.51:050.31:50-0.86:554:37Waning Crescent28Tue
29Wed8:4612.19:2311.12:05-0.32:46-1.46:544:38New Moon29Wed
30Thu9:4112.610:1611.63:02-0.83:40-1.96:534:39New Moon30Thu
31Fri10:3512.911:0812.03:57-1.24:31-2.16:524:41New Moon31Fri
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 11:48 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 27% 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 Waxing Crescent (27% 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