Nearby Harbors
44.2759’ N, 68.3187’ W

Southwest Harbor, ME

45°
H 53°
L 42°
SSW
5mph
High tide
5:45 am
Photo Credits

Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Monday, October 19, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide : 11:20 am (2.4 ft)
Next high tide : in 43m at 5:45 am (8.5 ft)
Sunset today : 5:42 pm
Sunrise tomorrow : 6:53 am
Moon phase : First Quarter (59% 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 - Oct 1837

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:2010.811:4210.44:470.65:080.35:345:18New Moon1Sun
2Mon11:5410.95:200.75:450.25:365:16Waxing Crescent2Mon
3Tue12:1910.212:3010.95:550.96:250.35:375:15Waxing Crescent3Tue
4Wed1:009.91:1110.86:341.17:090.35:385:13Waxing Crescent4Wed
5Thu1:459.61:5810.77:191.38:000.55:395:11First Quarter5Thu
6Fri2:389.32:5310.58:121.68:580.65:415:09First Quarter6Fri
7Sat3:389.13:5610.49:131.710:040.75:425:07First Quarter7Sat
8Sun4:469.15:0510.410:221.611:130.55:435:06First Quarter8Sun
9Mon5:559.46:1510.711:331.35:445:04Waxing Gibbous9Mon
10Tue7:009.97:2111.112:180.212:410.75:455:02Waxing Gibbous10Tue
11Wed7:5810.68:2011.51:18-0.21:420.15:475:00Waxing Gibbous11Wed
12Thu8:5111.39:1511.82:13-0.62:38-0.65:484:59Full Moon12Thu
13Fri9:4011.910:0611.93:03-0.83:30-1.05:494:57Full Moon13Fri
14Sat10:2712.210:5611.73:51-0.84:19-1.35:504:55Full Moon14Sat
15Sun11:1212.211:4411.44:37-0.65:08-1.25:524:53Waning Gibbous15Sun
16Mon11:5812.05:23-0.25:56-0.95:534:52Waning Gibbous16Mon
17Tue12:3310.912:4411.66:100.46:45-0.55:544:50Waning Gibbous17Tue
18Wed1:2210.31:3311.06:581.07:360.15:564:48Waning Gibbous18Wed
19Thu2:149.72:2410.47:491.58:300.75:574:47Third Quarter19Thu
20Fri3:109.23:209.98:442.09:271.15:584:45Third Quarter20Fri
21Sat4:088.84:219.59:442.210:261.45:594:43Third Quarter21Sat
22Sun5:088.75:229.410:452.311:241.56:014:42Third Quarter22Sun
23Mon6:068.86:209.411:442.16:024:40Waning Crescent23Mon
24Tue6:589.07:139.612:181.412:381.86:034:39Waning Crescent24Tue
25Wed7:449.48:009.81:051.21:261.46:054:37Waning Crescent25Wed
26Thu8:259.98:4310.01:481.02:091.06:064:36Waning Crescent26Thu
27Fri9:0210.39:2210.22:270.82:490.66:074:34New Moon27Fri
28Sat9:3710.710:0010.33:030.73:270.36:094:33New Moon28Sat
29Sun10:1111.010:3810.33:370.64:030.06:104:31New Moon29Sun
30Mon10:4611.211:1610.34:120.74:41-0.26:114:30New Moon30Mon
31Tue11:2311.311:5710.24:490.85:21-0.36:134:28Waxing Crescent31Tue
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 neap phase. Tonight's moon is 59% 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 (59% 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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