Nearby Harbors
44.2759’ N, 68.3187’ W

Southwest Harbor, ME

54°
H 66°
L 51°
N
4mph
Low tide
7:45 am
Photo Credits

Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Tuesday, September 15, 2026
The tide is currently falling in Southwest Harbor, ME.
Next low tide : in 15m at 7:45 am (0.8 ft)
Next high tide : 2:20 pm (10.8 ft)
Sunset today : 6:44 pm
Sunrise tomorrow : 6:12 am
Moon phase : Waxing Crescent (21% 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 1898

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:359.57:168.412:391.26:514:43Waxing Gibbous1Tue
2Wed7:299.68:088.612:491.91:321.06:494:44Waxing Gibbous2Wed
3Thu8:199.98:558.91:401.72:200.76:484:45Waxing Gibbous3Thu
4Fri9:0310.29:369.32:261.43:020.46:474:47Waxing Gibbous4Fri
5Sat9:4310.610:139.63:081.13:400.16:464:48Full Moon5Sat
6Sun10:2110.810:4810.03:470.84:16-0.16:454:50Full Moon6Sun
7Mon10:5711.011:2310.34:230.54:50-0.26:434:51Full Moon7Mon
8Tue11:3411.011:5810.65:000.35:24-0.36:424:52Waning Gibbous8Tue
9Wed12:1211.05:380.15:59-0.36:414:54Waning Gibbous9Wed
10Thu12:3410.812:5210.86:180.06:38-0.26:394:55Waning Gibbous10Thu
11Fri1:1411.01:3710.57:02-0.17:200.16:384:57Waning Gibbous11Fri
12Sat1:5911.02:2610.17:510.08:070.46:364:58Third Quarter12Sat
13Sun2:4810.93:229.68:460.19:020.76:354:59Third Quarter13Sun
14Mon3:4610.74:269.39:490.310:051.06:345:01Third Quarter14Mon
15Tue4:5010.65:379.110:580.311:151.16:325:02Third Quarter15Tue
16Wed6:0110.66:499.312:090.16:315:04Waning Crescent16Wed
17Thu7:1010.97:559.712:260.91:15-0.26:295:05Waning Crescent17Thu
18Fri8:1311.38:5310.31:320.42:15-0.76:275:06Waning Crescent18Fri
19Sat9:1111.79:4610.82:32-0.13:09-1.06:265:08New Moon19Sat
20Sun10:0412.010:3411.23:26-0.53:58-1.26:245:09New Moon20Sun
21Mon10:5312.011:2011.44:17-0.84:44-1.26:235:10New Moon21Mon
22Tue11:3911.85:04-0.95:28-1.06:215:12Waxing Crescent22Tue
23Wed12:0311.412:2511.35:50-0.76:11-0.56:205:13Waxing Crescent23Wed
24Thu12:4611.21:1010.86:36-0.46:540.06:185:14Waxing Crescent24Thu
25Fri1:2910.91:5610.17:220.07:370.66:165:16Waxing Crescent25Fri
26Sat2:1310.42:449.58:090.58:231.26:155:17First Quarter26Sat
27Sun3:0010.03:358.98:590.99:121.76:135:18First Quarter27Sun
28Mon3:519.54:328.49:551.310:082.16:115:20First Quarter28Mon
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.
Any commercial use, modification, redistribution, or repackaging without written permission is strictly prohibited.

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 21% 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 Crescent (21% 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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