Nearby Harbors
44.2759’ N, 68.3187’ W

Southwest Harbor, ME

60°
H 63°
L 38°
NNE
13mph
High tide
6:55 pm
Photo Credits

Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Tuesday, October 20, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide (tomorrow) : 12:52 am (1.4 ft)
Next high tide : in 3h 55m at 6:55 pm (9.4 ft)
Sunset today : 5:41 pm
Sunrise tomorrow : 6:54 am
Moon phase : First Quarter (69% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Featured Local Businesses

Charles M Young Painting of Maine Coast

Clark Point Gallery
Hamilton Marine - Southwest Harbor

Hamilton Marine - Southwest Harbor
A red hull lobster yacht cruising in calm water

John Williams Boat Company
Bowden Marine

Bowden Marine
Billings Diesel & Marine - Diesel Service

Billings Diesel & Marine

Southwest Harbor, ME Tides - Apr 1837

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:5310.67:3610.012:111.112:550.05:186:04Waning Crescent1Sat
2Sun7:5711.18:3310.61:170.51:54-0.45:166:05Waning Crescent2Sun
3Mon8:5411.49:2411.22:16-0.22:46-0.85:146:06New Moon3Mon
4Tue9:4711.710:1111.73:10-0.73:35-0.95:126:07New Moon4Tue
5Wed10:3611.710:5611.94:00-1.14:21-0.85:106:09New Moon5Wed
6Thu11:2311.511:3911.94:47-1.25:05-0.55:096:10New Moon6Thu
7Fri12:0911.15:33-1.15:48-0.15:076:11Waxing Crescent7Fri
8Sat12:2211.612:5510.66:19-0.76:320.55:056:12Waxing Crescent8Sat
9Sun1:0511.11:4210.07:05-0.27:171.15:036:13Waxing Crescent9Sun
10Mon1:5110.62:319.47:530.38:061.65:016:15Waxing Crescent10Mon
11Tue2:4010.03:248.98:440.88:582.15:006:16First Quarter11Tue
12Wed3:339.54:218.59:391.39:562.34:586:17First Quarter12Wed
13Thu4:339.25:208.410:381.510:572.44:566:18First Quarter13Thu
14Fri5:349.16:188.511:361.611:562.24:556:19First Quarter14Fri
15Sat6:339.27:118.812:311.44:536:21Waxing Gibbous15Sat
16Sun7:269.47:579.312:501.91:191.24:516:22Waxing Gibbous16Sun
17Mon8:149.78:389.81:391.42:020.94:496:23Waxing Gibbous17Mon
18Tue8:5610.09:1610.32:220.92:410.74:486:24Waxing Gibbous18Tue
19Wed9:3710.39:5210.73:030.53:180.54:466:26Full Moon19Wed
20Thu10:1610.410:2811.13:410.13:540.44:446:27Full Moon20Thu
21Fri10:5510.511:0511.44:20-0.34:310.44:436:28Full Moon21Fri
22Sat11:3610.511:4511.55:00-0.55:100.54:416:29Waning Gibbous22Sat
23Sun12:2010.45:43-0.65:530.64:406:30Waning Gibbous23Sun
24Mon12:2811.51:0710.26:29-0.56:400.94:386:32Waning Gibbous24Mon
25Tue1:1711.42:009.97:20-0.37:331.14:366:33Waning Gibbous25Tue
26Wed2:1211.12:599.68:18-0.18:341.34:356:34Third Quarter26Wed
27Thu3:1310.74:049.59:210.29:421.44:336:35Third Quarter27Thu
28Fri4:2110.55:129.610:280.310:531.34:326:36Third Quarter28Fri
29Sat5:3210.46:1810.011:340.24:306:38Waning Crescent29Sat
30Sun6:4010.57:1810.512:020.912:360.14:296:39Waning Crescent30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8413564)

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The US Harbors tide chart design is protected by copyright. It may be printed for personal use only.
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Common Questions About Southwest Harbor, ME Tides

Collapse All
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 69% 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 First Quarter (69% 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

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