Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Friday, July 3, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide : 7:27 pm (1.6 ft)
Next high tide : in 4h 23m at 1:55 pm (9.7 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 - Jan 2055

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:3910.012:4610.76:151.06:440.17:084:04Waxing Crescent1Fri
2Sat1:209.81:2810.36:561.27:240.57:084:05Waxing Crescent2Sat
3Sun2:019.62:119.97:401.48:060.87:084:06Waxing Crescent3Sun
4Mon2:459.42:579.58:261.68:501.07:084:07First Quarter4Mon
5Tue3:309.33:479.29:151.79:361.37:084:08First Quarter5Tue
6Wed4:199.34:408.910:081.710:261.47:084:09First Quarter6Wed
7Thu5:109.45:368.811:031.611:181.57:084:10First Quarter7Thu
8Fri6:029.66:338.911:591.37:084:11Waxing Gibbous8Fri
9Sat6:5410.07:289.212:111.412:530.87:074:13Waxing Gibbous9Sat
10Sun7:4410.58:199.61:031.11:440.27:074:14Waxing Gibbous10Sun
11Mon8:3211.19:0810.01:530.82:33-0.37:074:15Waxing Gibbous11Mon
12Tue9:2011.69:5610.52:410.43:20-0.97:064:16Full Moon12Tue
13Wed10:0812.110:4310.93:300.04:07-1.37:064:17Full Moon13Wed
14Thu10:5612.411:3211.24:18-0.34:55-1.67:054:18Full Moon14Thu
15Fri11:4612.55:08-0.65:44-1.77:054:20Waning Gibbous15Fri
16Sat12:2111.412:3712.46:00-0.66:35-1.67:044:21Waning Gibbous16Sat
17Sun1:1311.41:3112.16:54-0.67:27-1.37:044:22Waning Gibbous17Sun
18Mon2:0611.42:2811.57:52-0.48:22-0.97:034:23Third Quarter18Mon
19Tue3:0311.23:2910.98:53-0.29:21-0.47:024:25Third Quarter19Tue
20Wed4:0311.04:3310.49:570.010:220.17:024:26Third Quarter20Wed
21Thu5:0510.95:4010.011:030.111:250.47:014:27Third Quarter21Thu
22Fri6:0810.86:469.812:080.07:004:29Waning Crescent22Fri
23Sat7:0910.87:489.812:270.61:10-0.16:594:30Waning Crescent23Sat
24Sun8:0610.98:439.91:260.62:06-0.36:584:31Waning Crescent24Sun
25Mon8:5711.19:3310.02:200.52:56-0.46:574:33Waning Crescent25Mon
26Tue9:4411.110:1710.13:080.53:42-0.46:574:34New Moon26Tue
27Wed10:2711.110:5810.13:520.54:23-0.46:564:35New Moon27Wed
28Thu11:0611.111:3610.14:330.55:02-0.36:554:37New Moon28Thu
29Fri11:4410.95:120.65:39-0.16:544:38New Moon29Fri
30Sat12:1210.012:2110.75:500.76:140.16:534:39Waxing Crescent30Sat
31Sun12:4810.012:5910.46:270.86:500.46:514:41Waxing Crescent31Sun
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 4:41 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