Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Thursday, July 2, 2026
The tide is currently falling in Southwest Harbor, ME.
Next low tide : in 33m at 6:49 pm (1.6 ft)
Next high tide (tomorrow) : 1:21 am (10.7 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 4:53 am
Moon phase : Waning Gibbous (94% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Sep 1996

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:4512.02:1012.07:33-0.98:02-0.85:567:09Waning Gibbous1Sun
2Mon2:3811.43:0211.68:24-0.38:57-0.35:577:07Waning Gibbous2Mon
3Tue3:3310.73:5611.19:170.39:540.25:597:05Third Quarter3Tue
4Wed4:3010.14:5210.610:130.910:520.66:007:04Third Quarter4Wed
5Thu5:309.65:5210.211:111.311:520.96:017:02Third Quarter5Thu
6Fri6:319.36:5110.012:111.56:027:00Third Quarter6Fri
7Sat7:309.27:4810.012:511.01:091.66:036:58Waning Crescent7Sat
8Sun8:249.38:4110.11:470.92:031.46:046:56Waning Crescent8Sun
9Mon9:139.59:2810.32:370.82:521.26:056:54Waning Crescent9Mon
10Tue9:569.810:1010.53:210.63:361.06:076:53Waning Crescent10Tue
11Wed10:3510.110:5010.74:020.44:160.76:086:51New Moon11Wed
12Thu11:1210.411:2610.84:390.34:530.56:096:49New Moon12Thu
13Fri11:4610.65:130.35:290.46:106:47New Moon13Fri
14Sat12:0210.812:2010.75:470.36:050.36:116:45New Moon14Sat
15Sun12:3810.712:5410.96:210.36:410.26:126:43Waxing Crescent15Sun
16Mon1:1510.61:3111.06:560.47:200.26:146:41Waxing Crescent16Mon
17Tue1:5410.52:1111.07:350.58:030.26:156:39Waxing Crescent17Tue
18Wed2:3810.22:5610.98:180.78:520.36:166:38Waxing Crescent18Wed
19Thu3:2810.03:4710.99:080.99:460.36:176:36First Quarter19Thu
20Fri4:239.84:4510.810:041.010:470.36:186:34First Quarter20Fri
21Sat5:269.85:4910.811:071.011:520.26:196:32First Quarter21Sat
22Sun6:329.96:5611.012:140.86:206:30Waxing Gibbous22Sun
23Mon7:3710.38:0111.312:570.01:210.46:226:28Waxing Gibbous23Mon
24Tue8:3910.89:0211.71:59-0.42:23-0.26:236:26Waxing Gibbous24Tue
25Wed9:3511.49:5912.12:57-0.83:21-0.76:246:25Full Moon25Wed
26Thu10:2812.010:5312.33:50-1.24:16-1.26:256:23Full Moon26Thu
27Fri11:1812.311:4412.34:41-1.35:07-1.46:266:21Full Moon27Fri
28Sat12:0612.45:30-1.25:58-1.46:286:19Full Moon28Sat
29Sun12:3412.012:5312.26:18-0.96:47-1.16:296:17Waning Gibbous29Sun
30Mon1:2311.61:4111.97:06-0.47:37-0.76:306:15Waning Gibbous30Mon
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 10:05 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 94% 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 (94% 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