44.2759’ N, 68.3187’ W

Southwest Harbor, ME

62°
H 64°
L 60°
SE
10mph
High tide
3:47 pm

Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Thursday, September 3, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide : 9:49 pm (0.3 ft)
Next high tide : in 3h 39m at 3:47 pm (11.1 ft)
Sunset today : 7:06 pm
Sunrise tomorrow : 5:58 am
Moon phase : Third Quarter (58% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Feb 1930

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:099.712:1510.55:431.06:080.26:514:42Waxing Crescent1Sat
2Sun12:429.812:5110.36:181.06:410.46:504:43Waxing Crescent2Sun
3Mon1:169.91:2810.16:561.07:160.56:494:44Waxing Crescent3Mon
4Tue1:5310.02:099.87:370.97:550.76:484:46Waxing Crescent4Tue
5Wed2:3410.02:569.58:220.98:380.96:474:47First Quarter5Wed
6Thu3:2010.03:509.19:150.99:291.26:454:49First Quarter6Thu
7Fri4:1310.14:518.910:140.810:281.36:444:50First Quarter7Fri
8Sat5:1410.25:598.911:200.611:331.36:434:51Waxing Gibbous8Sat
9Sun6:1910.57:079.212:270.26:424:53Waxing Gibbous9Sun
10Mon7:2411.08:119.612:401.01:32-0.36:404:54Waxing Gibbous10Mon
11Tue8:2711.59:0910.21:440.62:31-0.96:394:56Waxing Gibbous11Tue
12Wed9:2512.110:0310.82:440.03:27-1.46:374:57Full Moon12Wed
13Thu10:1912.510:5511.33:40-0.54:18-1.76:364:58Full Moon13Thu
14Fri11:1212.611:4411.64:34-0.95:08-1.76:355:00Full Moon14Fri
15Sat12:0312.45:26-1.05:57-1.56:335:01Waning Gibbous15Sat
16Sun12:3311.712:5411.96:18-1.06:45-1.16:325:02Waning Gibbous16Sun
17Mon1:2211.51:4711.37:11-0.77:34-0.56:305:04Waning Gibbous17Mon
18Tue2:1211.22:4010.58:05-0.38:250.26:295:05Third Quarter18Tue
19Wed3:0410.73:389.79:010.29:190.96:275:07Third Quarter19Wed
20Thu3:5910.24:399.110:000.610:171.56:255:08Third Quarter20Thu
21Fri4:589.85:438.611:031.011:181.96:245:09Third Quarter21Fri
22Sat5:599.66:468.512:051.16:225:11Waning Crescent22Sat
23Sun7:009.57:448.612:202.01:041.06:215:12Waning Crescent23Sun
24Mon7:559.78:348.81:171.81:570.96:195:13Waning Crescent24Mon
25Tue8:4410.09:189.12:071.62:430.66:175:15Waning Crescent25Tue
26Wed9:2710.29:579.42:521.33:230.46:165:16New Moon26Wed
27Thu10:0610.510:329.73:311.03:590.26:145:17New Moon27Thu
28Fri10:4210.611:0510.04:080.84:330.16:125:19New Moon28Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8413564)

Common Questions About Southwest Harbor, ME Tides

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Is this week a spring tide or neap tide in Southwest Harbor, ME?

Southwest Harbor, ME is currently in a neap phase. Tonight's moon is 58% 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 minimum.

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 Third Quarter (58% illuminated). This places Southwest Harbor, ME in a neap tide cycle, so tidal ranges are near their weekly minimum 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