Nearby Harbors
44.2759’ N, 68.3187’ W

Southwest Harbor, ME

66°
H -°
L 59°
S
8mph
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 2h 51m 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

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 - Jan 1949

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:4811.05:150.95:49-0.17:094:04Waxing Crescent1Sat
2Sun12:249.712:3010.75:571.16:300.27:094:05Waxing Crescent2Sun
3Mon1:059.51:1310.36:401.37:110.57:094:06Waxing Crescent3Mon
4Tue1:479.41:569.97:231.57:520.87:094:07Waxing Crescent4Tue
5Wed2:299.32:409.58:091.78:341.27:084:08First Quarter5Wed
6Thu3:149.23:299.18:571.89:181.47:084:09First Quarter6Thu
7Fri4:009.14:218.79:491.910:051.77:084:10First Quarter7Fri
8Sat4:499.25:168.510:441.810:551.87:084:11First Quarter8Sat
9Sun5:409.36:148.411:401.611:481.97:084:12Waxing Gibbous9Sun
10Mon6:329.67:108.612:351.27:074:14Waxing Gibbous10Mon
11Tue7:2310.08:048.912:411.81:270.77:074:15Waxing Gibbous11Tue
12Wed8:1210.58:539.31:321.52:170.27:074:16Waxing Gibbous12Wed
13Thu9:0111.09:419.72:221.23:05-0.37:064:17Full Moon13Thu
14Fri9:4911.510:2810.13:100.73:52-0.87:064:18Full Moon14Fri
15Sat10:3612.011:1410.53:580.34:39-1.17:054:19Full Moon15Sat
16Sun11:2512.24:470.05:26-1.37:054:21Waning Gibbous16Sun
17Mon12:0210.812:1512.25:37-0.26:14-1.37:044:22Waning Gibbous17Mon
18Tue12:5111.01:0612.06:29-0.37:03-1.27:034:23Waning Gibbous18Tue
19Wed1:4111.12:0011.57:24-0.37:54-0.87:034:25Waning Gibbous19Wed
20Thu2:3411.12:5810.98:22-0.28:48-0.37:024:26Third Quarter20Thu
21Fri3:3011.04:0010.39:240.09:460.27:014:27Third Quarter21Fri
22Sat4:3010.85:069.710:290.210:470.77:014:28Third Quarter22Sat
23Sun5:3210.76:149.411:350.211:511.07:004:30Waning Crescent23Sun
24Mon6:3510.67:199.312:400.26:594:31Waning Crescent24Mon
25Tue7:3510.78:199.312:541.11:410.06:584:32Waning Crescent25Tue
26Wed8:3210.89:139.51:521.12:35-0.16:574:34Waning Crescent26Wed
27Thu9:2310.910:019.62:451.03:24-0.26:564:35New Moon27Thu
28Fri10:0910.910:439.73:330.94:09-0.26:554:37New Moon28Fri
29Sat10:5110.911:239.84:160.84:49-0.16:544:38New Moon29Sat
30Sun11:3010.84:570.85:270.06:534:39New Moon30Sun
31Mon12:009.812:0810.65:350.96:020.26:524:41Waxing Crescent31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8413564)

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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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