Nearby Harbors
44.2759’ N, 68.3187’ W

Southwest Harbor, ME

64°
H 65°
L 55°
SW
13mph
Low tide
9:04 pm
Photo Credits

Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Wednesday, September 16, 2026
The tide is currently falling in Southwest Harbor, ME.
Next low tide : in 5h 57m at 9:04 pm (0.8 ft)
Next high tide (tomorrow) : 3:40 am (9.2 ft)
Sunset today : 6:42 pm
Sunrise tomorrow : 6:13 am
Moon phase : Waxing Crescent (30% 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 1895

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:239.82:449.38:111.18:251.26:514:42First Quarter1Fri
2Sat3:069.83:348.99:001.29:121.46:504:44First Quarter2Sat
3Sun3:569.84:318.79:561.110:071.66:494:45First Quarter3Sun
4Mon4:539.95:368.610:581.011:091.66:474:47First Quarter4Mon
5Tue5:5610.16:438.812:040.66:464:48Waxing Gibbous5Tue
6Wed7:0110.67:479.312:151.41:090.16:454:49Waxing Gibbous6Wed
7Thu8:0311.28:469.91:190.92:09-0.56:444:51Waxing Gibbous7Thu
8Fri9:0111.89:4010.62:200.33:04-1.16:424:52Full Moon8Fri
9Sat9:5612.310:3211.23:16-0.33:56-1.66:414:53Full Moon9Sat
10Sun10:4912.611:2211.64:10-0.84:46-1.86:404:55Full Moon10Sun
11Mon11:4012.65:03-1.15:34-1.86:384:56Waning Gibbous11Mon
12Tue12:1111.912:3212.35:55-1.26:23-1.46:374:58Waning Gibbous12Tue
13Wed1:0011.91:2411.76:48-1.17:12-0.96:354:59Waning Gibbous13Wed
14Thu1:5011.62:1810.97:42-0.78:03-0.26:345:00Third Quarter14Thu
15Fri2:4211.23:1610.18:39-0.38:580.56:325:02Third Quarter15Fri
16Sat3:3810.74:179.49:390.29:561.26:315:03Third Quarter16Sat
17Sun4:3810.25:238.810:430.711:001.66:295:05Third Quarter17Sun
18Mon5:429.86:298.611:480.96:285:06Waning Crescent18Mon
19Tue6:459.77:318.612:041.812:510.96:265:07Waning Crescent19Tue
20Wed7:449.88:258.81:041.81:470.86:255:09Waning Crescent20Wed
21Thu8:3610.09:119.11:581.52:350.66:235:10Waning Crescent21Thu
22Fri9:2110.29:519.42:441.33:170.46:225:11New Moon22Fri
23Sat10:0010.410:279.63:261.03:540.36:205:13New Moon23Sat
24Sun10:3710.511:019.94:030.84:280.26:185:14New Moon24Sun
25Mon11:1110.511:3210.14:390.75:000.26:175:15New Moon25Mon
26Tue11:4510.45:120.65:310.36:155:17New Moon26Tue
27Wed12:0310.212:1810.25:460.56:010.56:135:18Waxing Crescent27Wed
28Thu12:3510.312:5310.06:210.56:340.76:125:19Waxing Crescent28Thu
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 30% 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 (30% 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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