Nearby Harbors
44.2759’ N, 68.3187’ W

Southwest Harbor, ME

67°
H -°
L 59°
S
10mph
High tide
9:09 pm
Photo Credits

Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Monday, August 24, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide (tomorrow) : 3:10 am (0.9 ft)
Next high tide : in 5h 00m at 9:09 pm (10.0 ft)
Sunset today : 7:23 pm
Sunrise tomorrow : 5:47 am
Moon phase : Waxing Gibbous (88% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Featured Local Businesses

Charles M Young Painting of Maine Coast

Clark Point Gallery
A red hull lobster yacht cruising in calm water

John Williams Boat Company
Hamilton Marine - Southwest Harbor

Hamilton Marine - Southwest Harbor
Bowden Marine

Bowden Marine
Billings Diesel & Marine - Diesel Service

Billings Diesel & Marine

Southwest Harbor, ME Tides - Mar 1949

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue11:4410.55:110.65:310.36:105:20New Moon1Tue
2Wed12:0310.112:1810.25:460.66:030.56:085:22Waxing Crescent2Wed
3Thu12:3510.112:539.96:200.76:340.86:075:23Waxing Crescent3Thu
4Fri1:0810.11:299.66:560.87:081.16:055:24Waxing Crescent4Fri
5Sat1:439.92:089.27:340.97:451.46:035:26Waxing Crescent5Sat
6Sun2:229.82:538.88:181.18:281.76:015:27First Quarter6Sun
7Mon3:079.63:458.59:081.29:191.96:005:28First Quarter7Mon
8Tue4:019.54:458.410:061.210:182.05:585:30First Quarter8Tue
9Wed5:039.65:528.511:111.111:241.95:565:31First Quarter9Wed
10Thu6:099.96:578.912:170.75:545:32Waxing Gibbous10Thu
11Fri7:1310.47:569.512:301.41:180.15:525:33Waxing Gibbous11Fri
12Sat8:1311.18:5010.31:320.72:13-0.55:515:35Waxing Gibbous12Sat
13Sun9:0811.89:4011.12:28-0.13:04-1.15:495:36Full Moon13Sun
14Mon10:0012.310:2811.83:21-0.83:52-1.55:475:37Full Moon14Mon
15Tue10:5012.511:1512.34:12-1.44:40-1.65:455:38Full Moon15Tue
16Wed11:4112.45:03-1.75:27-1.55:435:40Waning Gibbous16Wed
17Thu12:0312.412:3212.05:54-1.76:15-1.15:415:41Waning Gibbous17Thu
18Fri12:5212.31:2411.46:47-1.57:06-0.55:405:42Waning Gibbous18Fri
19Sat1:4311.92:2010.67:42-1.08:000.35:385:43Waning Gibbous19Sat
20Sun2:3711.33:209.98:40-0.48:581.05:365:45Third Quarter20Sun
21Mon3:3710.64:259.29:430.210:031.55:345:46Third Quarter21Mon
22Tue4:4310.15:348.910:510.711:121.85:325:47Third Quarter22Tue
23Wed5:529.86:418.811:580.95:305:48Waning Crescent23Wed
24Thu6:589.77:409.012:181.712:590.95:295:50Waning Crescent24Thu
25Fri7:569.98:319.31:181.51:530.75:275:51Waning Crescent25Fri
26Sat8:4610.19:159.62:091.22:390.65:255:52Waning Crescent26Sat
27Sun9:2910.29:539.92:540.93:180.55:235:53New Moon27Sun
28Mon10:0810.310:2710.23:340.63:540.45:215:55New Moon28Mon
29Tue10:4410.310:5910.34:110.44:270.55:195:56New Moon29Tue
30Wed11:1810.211:3010.44:450.34:580.75:185:57New Moon30Wed
31Thu11:5210.05:190.35:290.95:165:58Waxing Crescent31Thu
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 spring phase. Tonight's moon is 88% 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 Waxing Gibbous (88% 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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