Nearby Harbors
44.2759’ N, 68.3187’ W

Southwest Harbor, ME

47°
H 64°
L 51°
N
5mph
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 1h 50m 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
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 - Apr 1898

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:009.26:408.712:001.45:136:00Waxing Gibbous1Fri
2Sat6:569.47:309.212:191.912:511.15:116:01Waxing Gibbous2Sat
3Sun7:479.88:149.81:101.41:380.85:106:02Waxing Gibbous3Sun
4Mon8:3310.28:5610.41:580.82:200.45:086:04Waxing Gibbous4Mon
5Tue9:1710.69:3611.02:420.23:010.15:066:05Full Moon5Tue
6Wed10:0110.910:1611.53:25-0.43:41-0.25:046:06Full Moon6Wed
7Thu10:4411.110:5811.94:08-0.84:23-0.35:026:07Full Moon7Thu
8Fri11:2911.111:4212.14:52-1.15:06-0.25:016:08Waning Gibbous8Fri
9Sat12:1611.05:39-1.25:53-0.14:596:10Waning Gibbous9Sat
10Sun12:2912.11:0710.76:29-1.16:430.24:576:11Waning Gibbous10Sun
11Mon1:2111.82:0210.37:23-0.87:390.64:556:12Waning Gibbous11Mon
12Tue2:1811.43:0310.08:23-0.48:420.94:546:13Third Quarter12Tue
13Wed3:2111.04:109.79:270.09:501.14:526:15Third Quarter13Wed
14Thu4:3010.65:189.710:350.211:021.04:506:16Third Quarter14Thu
15Fri5:4110.46:2410.011:410.24:486:17Waning Crescent15Fri
16Sat6:4810.57:2410.412:100.712:430.24:476:18Waning Crescent16Sat
17Sun7:4910.68:1810.81:120.31:380.14:456:19Waning Crescent17Sun
18Mon8:4410.79:0611.12:07-0.12:280.04:436:21Waning Crescent18Mon
19Tue9:3310.89:4911.32:57-0.43:140.14:426:22New Moon19Tue
20Wed10:1810.710:2911.33:42-0.63:560.24:406:23New Moon20Wed
21Thu11:0010.511:0811.24:25-0.54:360.54:386:24New Moon21Thu
22Fri11:4010.311:4611.05:05-0.45:140.84:376:26New Moon22Fri
23Sat12:1910.05:44-0.15:531.14:356:27Waxing Crescent23Sat
24Sun12:2410.712:599.76:230.26:321.44:346:28Waxing Crescent24Sun
25Mon1:0310.41:409.47:040.57:131.74:326:29Waxing Crescent25Mon
26Tue1:4610.12:249.17:460.97:572.04:316:30Waxing Crescent26Tue
27Wed2:319.83:118.98:321.18:462.14:296:32First Quarter27Wed
28Thu3:219.54:028.89:211.39:392.24:276:33First Quarter28Thu
29Fri4:149.34:558.910:131.410:352.14:266:34First Quarter29Fri
30Sat5:119.35:489.211:061.311:321.74:256:35First Quarter30Sat
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 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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