Nearby Harbors
44.2759’ N, 68.3187’ W

Southwest Harbor, ME

47°
H -°
L 43°
NE
4mph
Low tide
1:40 am
Photo Credits

Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Wednesday, October 21, 2026
The tide is currently falling in Southwest Harbor, ME.
Next low tide (tomorrow) : in 5h 27m at 1:40 am (1.1 ft)
Next high tide (tomorrow) : 8:20 am (9.6 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

A red hull lobster yacht cruising in calm water

John Williams Boat Company
Charles M Young Painting of Maine Coast

Clark Point Gallery
Hamilton Marine - Southwest Harbor

Hamilton Marine - Southwest Harbor
Bowden Marine

Bowden Marine
Billings Diesel & Marine - Diesel Service

Billings Diesel & Marine

Southwest Harbor, ME Tides - Jan 1835

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu11:5511.85:200.25:57-0.97:134:08Waxing Crescent1Thu
2Fri12:3410.412:4411.46:090.56:45-0.47:134:09Waxing Crescent2Fri
3Sat1:2210.11:3310.86:590.87:330.07:134:10Waxing Crescent3Sat
4Sun2:119.82:2310.37:501.28:210.57:134:11Waxing Crescent4Sun
5Mon3:009.63:159.78:431.49:090.97:134:12First Quarter5Mon
6Tue3:519.44:099.29:371.610:001.37:134:13First Quarter6Tue
7Wed4:429.35:068.810:331.710:511.67:134:14First Quarter7Wed
8Thu5:349.36:038.611:301.611:431.77:124:15First Quarter8Thu
9Fri6:269.46:598.612:251.47:124:16Waxing Gibbous9Fri
10Sat7:159.77:518.712:341.81:161.17:124:17Waxing Gibbous10Sat
11Sun8:0210.08:389.01:231.72:030.77:114:18Waxing Gibbous11Sun
12Mon8:4510.39:229.22:081.52:470.47:114:20Waxing Gibbous12Mon
13Tue9:2710.710:039.52:511.33:280.07:114:21Full Moon13Tue
14Wed10:0811.010:439.83:321.04:08-0.37:104:22Full Moon14Wed
15Thu10:4811.311:2310.04:130.84:48-0.57:104:23Full Moon15Thu
16Fri11:2911.54:540.65:29-0.77:094:24Waning Gibbous16Fri
17Sat12:0410.312:1311.65:370.46:11-0.87:094:26Waning Gibbous17Sat
18Sun12:4710.512:5911.56:230.36:56-0.77:084:27Waning Gibbous18Sun
19Mon1:3310.61:4811.27:120.27:43-0.67:074:28Waning Gibbous19Mon
20Tue2:2210.72:4110.88:060.28:34-0.37:074:30Third Quarter20Tue
21Wed3:1510.83:4010.49:050.29:290.17:064:31Third Quarter21Wed
22Thu4:1210.84:449.910:080.210:290.47:054:32Third Quarter22Thu
23Fri5:1310.85:529.711:140.111:320.67:044:34Waning Crescent23Fri
24Sat6:1710.96:599.612:21-0.17:034:35Waning Crescent24Sat
25Sun7:1911.18:039.812:370.71:25-0.47:034:36Waning Crescent25Sun
26Mon8:1911.39:0110.01:380.62:23-0.67:024:38Waning Crescent26Mon
27Tue9:1411.59:5410.22:360.43:17-0.87:014:39New Moon27Tue
28Wed10:0611.710:4310.43:290.24:07-0.97:004:40New Moon28Wed
29Thu10:5411.611:2810.44:180.24:53-0.86:594:42New Moon29Thu
30Fri11:3911.55:050.25:37-0.66:584:43New Moon30Fri
31Sat12:1210.312:2311.15:490.46:19-0.36:574:44Waxing Crescent31Sat
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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