Nearby Harbors
44.2759’ N, 68.3187’ W

Southwest Harbor, ME

49°
H -°
L 44°
NE
4mph
High tide
7:48 pm
Photo Credits

Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Wednesday, October 21, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide (tomorrow) : 1:40 am (1.1 ft)
Next high tide : in 1h 35m at 7:48 pm (9.6 ft)
Sunset today : 5:39 pm
Sunrise tomorrow : 6:56 am
Moon phase : Waxing Gibbous (78% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Featured Local Businesses

A red hull lobster yacht cruising in calm water

John Williams Boat Company
Hamilton Marine - Southwest Harbor

Hamilton Marine - Southwest Harbor
Charles M Young Painting of Maine Coast

Clark Point Gallery
Bowden Marine

Bowden Marine
Billings Diesel & Marine - Diesel Service

Billings Diesel & Marine

Southwest Harbor, ME Tides - Mar 1835

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:0110.85:280.25:500.06:155:24Waxing Crescent1Sun
2Mon12:2210.412:3910.56:060.36:250.36:135:25Waxing Crescent2Mon
3Tue12:5810.21:1810.16:450.57:010.76:115:27Waxing Crescent3Tue
4Wed1:3510.11:579.67:240.87:381.16:105:28Waxing Crescent4Wed
5Thu2:139.82:409.18:061.08:191.56:085:29First Quarter5Thu
6Fri2:569.63:288.78:521.39:041.96:065:31First Quarter6Fri
7Sat3:439.34:228.49:441.59:562.26:045:32First Quarter7Sat
8Sun4:379.25:218.210:421.510:542.26:035:33First Quarter8Sun
9Mon5:379.26:238.311:421.411:552.16:015:34Waxing Gibbous9Mon
10Tue6:379.57:208.712:411.05:595:36Waxing Gibbous10Tue
11Wed7:3310.08:129.312:531.71:350.55:575:37Waxing Gibbous11Wed
12Thu8:2510.69:009.91:471.12:24-0.15:555:38Waxing Gibbous12Thu
13Fri9:1411.39:4510.72:360.43:09-0.65:545:40Full Moon13Fri
14Sat10:0111.810:2811.33:24-0.33:54-1.15:525:41Full Moon14Sat
15Sun10:4812.111:1311.84:10-0.94:38-1.35:505:42Full Moon15Sun
16Mon11:3512.211:5812.14:58-1.35:22-1.35:485:43Waning Gibbous16Mon
17Tue12:2412.05:47-1.46:09-1.15:465:45Waning Gibbous17Tue
18Wed12:4512.21:1511.56:38-1.46:58-0.75:445:46Waning Gibbous18Wed
19Thu1:3512.02:1010.97:32-1.17:51-0.15:435:47Waning Gibbous19Thu
20Fri2:3011.63:1010.38:31-0.68:500.55:415:48Third Quarter20Fri
21Sat3:3011.04:169.79:35-0.29:561.05:395:50Third Quarter21Sat
22Sun4:3610.65:279.310:440.211:061.35:375:51Third Quarter22Sun
23Mon5:4710.36:379.311:530.45:355:52Waning Crescent23Mon
24Tue6:5610.37:409.512:161.312:580.35:335:53Waning Crescent24Tue
25Wed7:5810.48:359.81:191.01:560.25:315:54Waning Crescent25Wed
26Thu8:5210.69:2310.12:150.72:460.05:305:56Waning Crescent26Thu
27Fri9:3910.810:0410.43:040.43:300.05:285:57New Moon27Fri
28Sat10:2110.810:4210.53:470.24:090.05:265:58New Moon28Sat
29Sun11:0010.711:1710.64:270.14:450.25:245:59New Moon29Sun
30Mon11:3710.511:5010.65:040.15:190.45:226:01New Moon30Mon
31Tue12:1310.25:400.25:520.75:206:02Waxing Crescent31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8413564)

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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 78% 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 Waxing Gibbous (78% 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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