Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Friday, July 3, 2026
The tide is currently falling in Southwest Harbor, ME.
Next low tide : in 2h 58m at 7:27 pm (1.6 ft)
Next high tide (tomorrow) : 1:59 am (10.6 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 4:54 am
Moon phase : Waning Gibbous (88% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Jun 1996

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:5510.911:0812.34:18-0.94:300.04:518:10Full Moon1Sat
2Sun11:4411.211:5712.65:07-1.25:20-0.24:518:11Full Moon2Sun
3Mon12:3511.45:57-1.56:11-0.24:518:11Waning Gibbous3Mon
4Tue12:4812.71:2711.46:49-1.57:05-0.24:508:12Waning Gibbous4Tue
5Wed1:4212.52:2211.47:42-1.48:02-0.14:508:13Waning Gibbous5Wed
6Thu2:3812.23:1911.38:38-1.19:020.14:498:14Waning Gibbous6Thu
7Fri3:3711.74:1811.29:36-0.810:050.24:498:14Third Quarter7Fri
8Sat4:4011.25:2011.110:35-0.411:090.34:498:15Third Quarter8Sat
9Sun5:4410.86:2111.111:36-0.14:498:16Third Quarter9Sun
10Mon6:4910.57:2111.112:140.312:370.24:488:16Waning Crescent10Mon
11Tue7:5210.38:1711.21:160.21:350.44:488:17Waning Crescent11Tue
12Wed8:5110.29:1011.32:150.02:300.54:488:17Waning Crescent12Wed
13Thu9:4410.29:5911.33:08-0.23:210.64:488:18Waning Crescent13Thu
14Fri10:3310.210:4311.33:57-0.34:080.74:488:18New Moon14Fri
15Sat11:1710.211:2511.34:42-0.34:510.84:488:19New Moon15Sat
16Sun11:5910.25:24-0.25:331.04:488:19New Moon16Sun
17Mon12:0511.112:3910.16:040.06:121.14:488:19New Moon17Mon
18Tue12:4411.01:1710.06:420.16:511.34:488:20Waxing Crescent18Tue
19Wed1:2210.81:569.97:200.37:311.44:488:20Waxing Crescent19Wed
20Thu2:0110.52:359.97:580.58:111.54:498:20Waxing Crescent20Thu
21Fri2:4110.33:159.88:360.78:531.64:498:20Waxing Crescent21Fri
22Sat3:2410.03:579.89:170.89:381.64:498:21First Quarter22Sat
23Sun4:099.84:429.910:001.010:271.64:498:21First Quarter23Sun
24Mon4:589.65:3010.010:461.111:191.44:508:21First Quarter24Mon
25Tue5:519.56:2010.311:351.14:508:21First Quarter25Tue
26Wed6:479.57:1310.612:141.112:281.04:518:21Waxing Gibbous26Wed
27Thu7:459.78:0611.11:100.71:220.84:518:21Waxing Gibbous27Thu
28Fri8:4210.09:0011.62:060.12:170.64:518:21Waxing Gibbous28Fri
29Sat9:3710.59:5312.23:00-0.43:120.24:528:21Full Moon29Sat
30Sun10:3110.910:4612.63:54-1.04:06-0.14:528:21Full Moon30Sun
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 10:43 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 spring phase. Tonight's moon is 88% 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 Waning Gibbous (88% 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