Nearby Harbors
44.2759’ N, 68.3187’ W

Southwest Harbor, ME

46°
H 46°
L 28°
NW
15mph
Low tide
9:28 am
Photo Credits

Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Saturday, October 17, 2026
The tide is currently falling in Southwest Harbor, ME.
Next low tide : in 5h 19m at 9:28 am (2.3 ft)
Next high tide : 4:04 pm (9.5 ft)
Sunset today : 5:46 pm
Sunrise tomorrow : 6:50 am
Moon phase : First Quarter (41% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Featured Local Businesses

Hamilton Marine - Southwest Harbor

Hamilton Marine - Southwest Harbor
Charles M Young Painting of Maine Coast

Clark Point Gallery
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 - Nov 1840

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:028.73:119.48:352.49:141.56:144:27First Quarter1Sun
2Mon3:558.64:059.39:292.410:071.56:164:25First Quarter2Mon
3Tue4:498.75:029.310:262.211:001.46:174:24First Quarter3Tue
4Wed5:429.05:589.511:231.911:511.16:184:23Waxing Gibbous4Wed
5Thu6:329.66:529.812:171.36:204:21Waxing Gibbous5Thu
6Fri7:1910.27:4310.212:390.81:080.76:214:20Waxing Gibbous6Fri
7Sat8:0410.98:3210.51:250.51:560.06:224:19Waxing Gibbous7Sat
8Sun8:4911.69:2010.92:100.22:44-0.76:244:18Full Moon8Sun
9Mon9:3312.110:0811.12:56-0.13:31-1.26:254:16Full Moon9Mon
10Tue10:2012.510:5711.13:42-0.24:20-1.46:264:15Full Moon10Tue
11Wed11:0812.611:4811.04:30-0.15:10-1.56:284:14Waning Gibbous11Wed
12Thu11:5912.45:210.06:03-1.36:294:13Waning Gibbous12Thu
13Fri12:4210.712:5512.16:160.37:00-0.96:314:12Waning Gibbous13Fri
14Sat1:3910.41:5411.67:150.68:00-0.56:324:11Third Quarter14Sat
15Sun2:4110.12:5811.18:190.99:03-0.16:334:10Third Quarter15Sun
16Mon3:4610.04:0610.69:271.110:080.26:354:09Third Quarter16Mon
17Tue4:5210.05:1510.310:371.011:110.46:364:08Third Quarter17Tue
18Wed5:5510.16:2010.111:430.86:374:07Waning Crescent18Wed
19Thu6:5310.47:2110.012:100.512:440.56:384:07Waning Crescent19Thu
20Fri7:4510.78:1510.01:050.61:390.26:404:06Waning Crescent20Fri
21Sat8:3210.99:0410.01:540.72:280.06:414:05Waning Crescent21Sat
22Sun9:1511.09:4910.02:400.83:13-0.16:424:04New Moon22Sun
23Mon9:5511.010:309.93:220.93:54-0.16:444:04New Moon23Mon
24Tue10:3310.911:089.74:011.14:330.06:454:03New Moon24Tue
25Wed11:1110.811:469.64:391.35:110.26:464:02New Moon25Wed
26Thu11:4810.65:161.55:490.46:474:02Waxing Crescent26Thu
27Fri12:249.412:2610.45:541.76:270.66:484:01Waxing Crescent27Fri
28Sat1:039.21:0510.26:331.87:060.86:504:01Waxing Crescent28Sat
29Sun1:439.11:479.97:142.07:481.06:514:00Waxing Crescent29Sun
30Mon2:269.02:339.77:592.08:321.16:524:00First Quarter30Mon
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 neap phase. Tonight's moon is 41% 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 First Quarter (41% 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

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