Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently falling in Southwest Harbor, ME.
Next low tide : in 1h 27m at 10:33 pm (0.9 ft)
Next high tide (tomorrow) : 5:06 am (9.8 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 4:57 am
Moon phase : Third Quarter (52% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Aug 2062

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:349.37:5211.212:560.41:061.25:217:57Waning Crescent1Tue
2Wed8:399.68:5511.62:010.02:110.95:227:56Waning Crescent2Wed
3Thu9:4010.19:5512.13:03-0.43:130.55:237:55New Moon3Thu
4Fri10:3810.610:5312.44:01-0.94:120.15:247:54New Moon4Fri
5Sat11:3211.011:4812.64:55-1.25:09-0.25:257:52New Moon5Sat
6Sun12:2411.35:48-1.36:04-0.45:277:51Waxing Crescent6Sun
7Mon12:4112.51:1611.56:39-1.36:58-0.55:287:50Waxing Crescent7Mon
8Tue1:3412.12:0611.57:28-1.07:52-0.35:297:48Waxing Crescent8Tue
9Wed2:2811.52:5711.48:18-0.58:47-0.15:307:47Waxing Crescent9Wed
10Thu3:2210.93:4811.19:090.19:430.35:317:45First Quarter10Thu
11Fri4:1810.14:4210.710:010.810:410.65:327:44First Quarter11Fri
12Sat5:179.55:3710.310:561.411:400.95:337:42First Quarter12Sat
13Sun6:189.06:3510.011:541.85:357:41First Quarter13Sun
14Mon7:208.87:339.912:411.112:522.05:367:39Waxing Gibbous14Mon
15Tue8:188.78:2910.01:391.11:492.05:377:38Waxing Gibbous15Tue
16Wed9:108.99:1910.12:331.02:411.95:387:36Waxing Gibbous16Wed
17Thu9:579.110:0510.43:210.83:281.75:397:35Waxing Gibbous17Thu
18Fri10:399.310:4510.64:040.74:101.45:407:33Full Moon18Fri
19Sat11:169.611:2310.74:430.54:491.25:417:31Full Moon19Sat
20Sun11:519.911:5910.85:180.45:261.15:437:30Full Moon20Sun
21Mon12:2510.15:510.36:020.95:447:28Full Moon21Mon
22Tue12:3410.712:5810.36:240.36:370.85:457:26Waning Gibbous22Tue
23Wed1:1010.61:3110.56:560.47:150.75:467:25Waning Gibbous23Wed
24Thu1:4710.52:0710.77:310.57:550.65:477:23Waning Gibbous24Thu
25Fri2:2810.22:4710.78:090.78:400.65:487:21Waning Gibbous25Fri
26Sat3:139.93:3310.78:520.99:300.65:497:20Third Quarter26Sat
27Sun4:059.64:2510.79:421.210:270.75:517:18Third Quarter27Sun
28Mon5:049.35:2410.610:391.411:320.65:527:16Third Quarter28Mon
29Tue6:109.16:3110.711:441.55:537:14Waning Crescent29Tue
30Wed7:209.27:3911.012:400.512:541.35:547:13Waning Crescent30Wed
31Thu8:269.68:4511.41:470.12:020.95:557:11Waning Crescent31Thu
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 1:49 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 neap phase. Tonight's moon is 52% 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 minimum.

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 (52% illuminated). This places Southwest Harbor, ME in a neap tide cycle, so tidal ranges are near their weekly minimum 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