Nearby Harbors
44.2759’ N, 68.3187’ W

Southwest Harbor, ME

66°
H -°
L 56°
SSW
10mph
Low tide
6:00 pm
Photo Credits

Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Saturday, September 12, 2026
The tide is currently falling in Southwest Harbor, ME.
Next low tide : in 1h 23m at 6:00 pm (-0.5 ft)
Next high tide (tomorrow) : 12:35 am (11.4 ft)
Sunset today : 6:49 pm
Sunrise tomorrow : 6:09 am
Moon phase : New Moon (3% 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
Charles M Young Painting of Maine Coast

Clark Point Gallery
Hamilton Marine - Southwest Harbor

Hamilton Marine - Southwest Harbor
Bowden Marine

Bowden Marine
Billings Diesel & Marine - Diesel Service

Billings Diesel & Marine

Southwest Harbor, ME Tides - Feb 1904

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon9:5412.610:2911.63:15-0.73:53-1.86:524:41Full Moon1Mon
2Tue10:4712.911:2012.04:09-1.14:44-2.16:514:42Full Moon2Tue
3Wed11:3912.95:02-1.45:34-2.16:504:43Waning Gibbous3Wed
4Thu12:1112.112:3212.65:55-1.46:25-1.86:494:45Waning Gibbous4Thu
5Fri1:0312.11:2612.16:50-1.27:18-1.46:484:46Waning Gibbous5Fri
6Sat1:5611.82:2211.57:46-0.98:12-0.86:464:48Third Quarter6Sat
7Sun2:5211.43:2210.78:45-0.49:10-0.26:454:49Third Quarter7Sun
8Mon3:5111.04:2510.19:480.010:100.46:444:50Third Quarter8Mon
9Tue4:5310.65:309.610:520.311:130.86:434:52Third Quarter9Tue
10Wed5:5610.36:359.311:560.46:414:53Waning Crescent10Wed
11Thu6:5610.37:359.312:151.012:570.46:404:55Waning Crescent11Thu
12Fri7:5210.38:289.51:131.01:510.36:384:56Waning Crescent12Fri
13Sat8:4310.59:159.72:050.92:390.16:374:57Waning Crescent13Sat
14Sun9:2710.69:569.82:520.73:220.06:364:59New Moon14Sun
15Mon10:0710.710:3410.03:330.64:01-0.16:345:00New Moon15Mon
16Tue10:4510.811:0910.14:120.54:36-0.16:335:02New Moon16Tue
17Wed11:2010.811:4210.24:480.55:100.06:315:03New Moon17Wed
18Thu11:5410.65:220.55:430.16:305:04Waxing Crescent18Thu
19Fri12:1510.212:2910.55:570.56:150.26:285:06Waxing Crescent19Fri
20Sat12:4910.31:0410.36:320.66:490.46:275:07Waxing Crescent20Sat
21Sun1:2410.21:4310.07:100.67:260.66:255:08Waxing Crescent21Sun
22Mon2:0310.22:269.77:520.78:080.86:235:10First Quarter22Mon
23Tue2:4710.13:149.48:390.78:561.06:225:11First Quarter23Tue
24Wed3:3710.14:119.39:340.79:511.16:205:12First Quarter24Wed
25Thu4:3410.25:139.210:350.610:531.06:195:14First Quarter25Thu
26Fri5:3810.46:199.511:400.311:580.86:175:15Waxing Gibbous26Fri
27Sat6:4210.87:2310.012:44-0.26:155:16Waxing Gibbous27Sat
28Sun7:4511.48:2210.61:030.31:44-0.86:145:18Waxing Gibbous28Sun
29Mon8:4312.09:1711.32:03-0.42:40-1.36:125:19Full Moon29Mon
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 spring phase. Tonight's moon is 3% 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 New Moon (3% 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

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