Nearby Harbors
44.2759’ N, 68.3187’ W

Southwest Harbor, ME

52°
H 54°
L 42°
NE
12mph
Low tide
1:12 pm
Photo Credits

Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Wednesday, October 21, 2026
The tide is currently falling in Southwest Harbor, ME.
Next low tide : in 1h 59m at 1:12 pm (1.8 ft)
Next high tide : 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

Hamilton Marine - Southwest Harbor

Hamilton Marine - Southwest Harbor
A red hull lobster yacht cruising in calm water

John Williams Boat Company
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 - Sep 1835

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:009.75:2211.010:391.011:290.24:596:15First Quarter1Tue
2Wed6:109.66:2911.011:471.15:006:13Waxing Gibbous2Wed
3Thu7:169.77:3411.112:360.112:531.05:016:11Waxing Gibbous3Thu
4Fri8:1710.08:3311.31:38-0.11:540.75:026:09Waxing Gibbous4Fri
5Sat9:1110.39:2611.52:33-0.32:490.45:036:07Full Moon5Sat
6Sun9:5910.610:1411.53:23-0.53:390.25:056:06Full Moon6Sun
7Mon10:4410.710:5911.44:09-0.44:250.15:066:04Full Moon7Mon
8Tue11:2510.811:4211.14:51-0.35:080.25:076:02Full Moon8Tue
9Wed12:0510.75:310.05:500.35:086:00Waning Gibbous9Wed
10Thu12:2310.712:4310.66:090.46:310.65:095:58Waning Gibbous10Thu
11Fri1:0410.31:2210.46:480.87:130.85:105:56Waning Gibbous11Fri
12Sat1:469.82:0210.17:271.37:571.15:115:55Waning Gibbous12Sat
13Sun2:319.32:459.88:091.78:441.45:135:53Third Quarter13Sun
14Mon3:198.93:339.58:552.19:351.65:145:51Third Quarter14Mon
15Tue4:138.54:279.39:472.310:321.75:155:49Third Quarter15Tue
16Wed5:118.45:259.310:442.411:301.65:165:47Third Quarter16Wed
17Thu6:108.46:239.511:432.35:175:45Waning Crescent17Thu
18Fri7:068.77:179.912:271.312:392.05:185:43Waning Crescent18Fri
19Sat7:569.28:0810.51:180.91:301.55:205:42Waning Crescent19Sat
20Sun8:419.88:5411.02:050.42:170.95:215:40Waning Crescent20Sun
21Mon9:2410.59:3911.52:49-0.13:030.35:225:38New Moon21Mon
22Tue10:0611.110:2411.83:31-0.53:48-0.35:235:36New Moon22Tue
23Wed10:4811.711:1011.94:13-0.84:33-0.75:245:34New Moon23Wed
24Thu11:3212.011:5711.84:56-0.95:21-1.05:265:32Waxing Crescent24Thu
25Fri12:1712.25:41-0.76:10-1.15:275:30Waxing Crescent25Fri
26Sat12:4711.51:0612.16:29-0.47:03-0.95:285:28Waxing Crescent26Sat
27Sun1:4011.01:5911.87:200.08:00-0.65:295:27First Quarter27Sun
28Mon2:3810.52:5711.48:170.59:02-0.25:305:25First Quarter28Mon
29Tue3:4210.04:0211.09:211.010:090.15:315:23First Quarter29Tue
30Wed4:519.65:1110.710:301.211:180.35:335:21First Quarter30Wed
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 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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