Nearby Harbors
44.2759’ N, 68.3187’ W

Southwest Harbor, ME

43°
H 55°
L 43°
NNE
9mph
High tide
7:33 am
Photo Credits

Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Wednesday, October 21, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide : 1:12 pm (1.8 ft)
Next high tide : in 2h 17m at 7:33 am (9.0 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

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 1836

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:1710.49:489.62:411.23:140.26:135:25Full Moon1Tue
2Wed9:5710.810:2510.13:220.83:51-0.16:125:26Full Moon2Wed
3Thu10:3611.111:0110.64:010.34:28-0.46:105:28Full Moon3Thu
4Fri11:1511.311:3810.94:400.05:04-0.56:085:29Full Moon4Fri
5Sat11:5511.35:20-0.35:42-0.56:065:30Waning Gibbous5Sat
6Sun12:1711.212:3811.26:02-0.56:22-0.46:055:32Waning Gibbous6Sun
7Mon12:5811.41:2410.86:48-0.57:06-0.16:035:33Waning Gibbous7Mon
8Tue1:4411.32:1510.47:38-0.47:550.36:015:34Third Quarter8Tue
9Wed2:3411.13:129.88:34-0.28:510.75:595:35Third Quarter9Wed
10Thu3:3210.84:179.49:370.19:551.15:585:37Third Quarter10Thu
11Fri4:3810.55:289.110:470.311:061.35:565:38Third Quarter11Fri
12Sat5:5010.46:419.211:580.35:545:39Waning Crescent12Sat
13Sun7:0110.67:479.612:181.11:060.05:525:41Waning Crescent13Sun
14Mon8:0510.98:4510.11:250.72:06-0.35:505:42Waning Crescent14Mon
15Tue9:0311.39:3610.62:240.32:59-0.65:485:43New Moon15Tue
16Wed9:5411.510:2210.93:17-0.23:47-0.75:475:44New Moon16Wed
17Thu10:4111.511:0511.14:05-0.44:31-0.75:455:46New Moon17Thu
18Fri11:2511.311:4511.14:50-0.55:12-0.55:435:47New Moon18Fri
19Sat12:0711.05:33-0.45:51-0.15:415:48Waxing Crescent19Sat
20Sun12:2411.012:4910.56:15-0.26:300.45:395:49Waxing Crescent20Sun
21Mon1:0310.71:3110.06:560.17:100.95:375:50Waxing Crescent21Mon
22Tue1:4310.32:159.47:390.57:511.45:365:52Waxing Crescent22Tue
23Wed2:259.93:028.98:250.98:371.95:345:53First Quarter23Wed
24Thu3:129.53:548.59:151.39:282.25:325:54First Quarter24Thu
25Fri4:069.24:528.210:111.610:262.45:305:55First Quarter25Fri
26Sat5:059.05:538.211:111.611:272.45:285:57First Quarter26Sat
27Sun6:069.16:508.412:101.55:265:58Waxing Gibbous27Sun
28Mon7:039.47:428.912:252.11:031.15:255:59Waxing Gibbous28Mon
29Tue7:559.98:279.41:181.61:510.75:236:00Waxing Gibbous29Tue
30Wed8:4110.49:0910.12:051.12:330.35:216:01Waxing Gibbous30Wed
31Thu9:2410.89:4810.72:490.43:13-0.15:196:03Full Moon31Thu
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 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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