Nearby Harbors
44.2759’ N, 68.3187’ W

Southwest Harbor, ME

61°
H -°
L 46°
SW
5mph
Low tide
11:50 pm
Photo Credits

Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Saturday, September 19, 2026
The tide is currently falling in Southwest Harbor, ME.
Next low tide : in 5h 55m at 11:50 pm (1.7 ft)
Next high tide (tomorrow) : 6:30 am (8.3 ft)
Sunset today : 6:36 pm
Sunrise tomorrow : 6:17 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Featured Local Businesses

Charles M Young Painting of Maine Coast

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A red hull lobster yacht cruising in calm water

John Williams Boat Company
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Hamilton Marine - Southwest Harbor
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Bowden Marine
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Southwest Harbor, ME Tides - Aug 1890

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:4111.210:5712.84:04-1.44:18-0.34:206:58Full Moon1Fri
2Sat11:3511.511:5112.74:57-1.65:14-0.54:216:56Waning Gibbous2Sat
3Sun12:2811.65:50-1.56:10-0.54:226:55Waning Gibbous3Sun
4Mon12:4612.41:2111.66:43-1.37:06-0.44:236:54Waning Gibbous4Mon
5Tue1:4211.92:1611.57:36-0.88:04-0.24:256:53Waning Gibbous5Tue
6Wed2:4011.33:1111.38:30-0.39:040.14:266:51Third Quarter6Wed
7Thu3:3910.64:0811.09:260.310:050.44:276:50Third Quarter7Thu
8Fri4:4110.05:0610.710:240.811:070.54:286:48Third Quarter8Fri
9Sat5:449.66:0510.511:231.24:296:47Waning Crescent9Sat
10Sun6:469.37:0210.412:070.612:211.54:306:46Waning Crescent10Sun
11Mon7:439.37:5610.41:050.61:171.54:316:44Waning Crescent11Mon
12Tue8:359.38:4410.51:570.52:071.54:336:43Waning Crescent12Tue
13Wed9:219.59:2810.72:450.42:531.34:346:41New Moon13Wed
14Thu10:029.610:0910.83:270.43:351.24:356:40New Moon14Thu
15Fri10:409.810:4710.84:060.34:131.14:366:38New Moon15Fri
16Sat11:159.911:2310.84:420.34:501.14:376:37New Moon16Sat
17Sun11:5010.011:5810.75:170.35:261.14:386:35New Moon17Sun
18Mon12:2410.15:500.46:011.04:396:33Waxing Crescent18Mon
19Tue12:3310.512:5810.26:230.56:381.04:416:32Waxing Crescent19Tue
20Wed1:1010.31:3410.36:580.67:181.04:426:30Waxing Crescent20Wed
21Thu1:5010.12:1410.37:350.88:020.94:436:28First Quarter21Thu
22Fri2:359.82:5810.48:171.08:510.94:446:27First Quarter22Fri
23Sat3:259.63:4810.49:051.19:460.84:456:25First Quarter23Sat
24Sun4:229.44:4510.610:001.310:470.74:466:23First Quarter24Sun
25Mon5:259.35:4710.811:011.311:520.44:486:22Waxing Gibbous25Mon
26Tue6:319.56:5111.212:061.14:496:20Waxing Gibbous26Tue
27Wed7:359.97:5311.612:56-0.11:100.74:506:18Waxing Gibbous27Wed
28Thu8:3410.58:5212.11:56-0.62:110.14:516:17Full Moon28Thu
29Fri9:3011.09:4812.52:53-1.13:09-0.44:526:15Full Moon29Fri
30Sat10:2311.510:4212.73:46-1.44:04-0.74:536:13Full Moon30Sat
31Sun11:1411.911:3512.64:37-1.54:58-1.04:556:11Full Moon31Sun
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 58% 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 (58% 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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