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 1h 16m 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
Hamilton Marine - Southwest Harbor

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

John Williams Boat Company
Bowden Marine

Bowden Marine
Billings Diesel & Marine - Diesel Service

Billings Diesel & Marine

Southwest Harbor, ME Tides - Feb 1836

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon9:4710.510:209.43:121.33:460.26:564:45Full Moon1Mon
2Tue10:2510.810:569.73:511.04:23-0.16:554:47Full Moon2Tue
3Wed11:0211.011:329.94:280.84:59-0.26:544:48Full Moon3Wed
4Thu11:3911.15:050.65:34-0.36:524:50Waning Gibbous4Thu
5Fri12:0810.212:1711.15:430.56:10-0.36:514:51Waning Gibbous5Fri
6Sat12:4510.412:5810.96:240.36:49-0.36:504:52Waning Gibbous6Sat
7Sun1:2510.61:4210.77:080.27:31-0.16:494:54Waning Gibbous7Sun
8Mon2:0910.72:3110.37:570.28:170.26:474:55Third Quarter8Mon
9Tue2:5810.73:279.98:510.29:090.56:464:57Third Quarter9Tue
10Wed3:5310.74:299.59:520.310:090.86:454:58Third Quarter10Wed
11Thu4:5410.65:389.210:590.311:151.06:434:59Third Quarter11Thu
12Fri6:0110.76:499.312:090.16:425:01Waning Crescent12Fri
13Sat7:0810.97:569.612:250.91:16-0.26:405:02Waning Crescent13Sat
14Sun8:1211.38:5610.01:310.72:17-0.66:395:04Waning Crescent14Sun
15Mon9:1111.79:5010.52:320.23:13-1.06:385:05New Moon15Mon
16Tue10:0511.910:4010.83:27-0.14:04-1.26:365:06New Moon16Tue
17Wed10:5612.011:2711.04:19-0.44:52-1.26:355:08New Moon17Wed
18Thu11:4411.85:08-0.55:37-1.06:335:09Waxing Crescent18Thu
19Fri12:1211.012:3011.45:55-0.46:21-0.66:325:10Waxing Crescent19Fri
20Sat12:5610.91:1610.96:42-0.17:04-0.16:305:12Waxing Crescent20Sat
21Sun1:4010.62:0210.37:280.27:480.56:285:13Waxing Crescent21Sun
22Mon2:2410.32:509.68:160.68:331.16:275:14First Quarter22Mon
23Tue3:109.93:429.09:071.09:211.66:255:16First Quarter23Tue
24Wed4:009.54:398.510:011.310:152.06:245:17First Quarter24Wed
25Thu4:559.25:398.211:001.511:132.26:225:18First Quarter25Thu
26Fri5:549.16:408.212:001.56:205:20Waxing Gibbous26Fri
27Sat6:529.37:358.412:122.212:571.36:195:21Waxing Gibbous27Sat
28Sun7:469.68:258.71:072.01:481.06:175:22Waxing Gibbous28Sun
29Mon8:3410.09:089.21:571.62:330.66:155:24Waxing Gibbous29Mon
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.
Any commercial use, modification, redistribution, or repackaging without written permission is strictly prohibited.

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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