Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Tuesday, June 9, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide : 11:26 am (0.8 ft)
Next high tide : in 1h 57m at 5:39 am (9.7 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 4:49 am
Moon phase : Third Quarter (37% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Jun 2034

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu11:219.911:2610.94:470.24:541.14:528:10Full Moon1Thu
2Fri11:589.95:240.25:311.24:518:11Full Moon2Fri
3Sat12:0210.912:359.96:000.26:071.34:518:11Full Moon3Sat
4Sun12:3810.91:129.96:360.26:441.34:508:12Waning Gibbous4Sun
5Mon1:1610.91:509.97:140.27:231.34:508:13Waning Gibbous5Mon
6Tue1:5510.82:3110.07:530.28:051.34:508:14Waning Gibbous6Tue
7Wed2:3810.73:1510.18:350.28:521.24:498:14Waning Gibbous7Wed
8Thu3:2510.64:0210.29:210.29:431.14:498:15Third Quarter8Thu
9Fri4:1710.54:5510.410:110.210:400.94:498:15Third Quarter9Fri
10Sat5:1410.45:5010.711:060.211:400.64:498:16Third Quarter10Sat
11Sun6:1510.46:4811.112:030.14:488:17Waning Crescent11Sun
12Mon7:1810.57:4711.612:420.21:020.04:488:17Waning Crescent12Mon
13Tue8:2010.88:4412.11:44-0.42:01-0.24:488:18Waning Crescent13Tue
14Wed9:2011.19:4012.52:44-0.92:59-0.34:488:18Waning Crescent14Wed
15Thu10:1811.310:3512.83:41-1.33:56-0.54:488:19New Moon15Thu
16Fri11:1311.511:2812.94:36-1.64:51-0.54:488:19New Moon16Fri
17Sat12:0711.65:30-1.75:45-0.44:488:19New Moon17Sat
18Sun12:2112.81:0111.56:22-1.66:39-0.24:488:20Waxing Crescent18Sun
19Mon1:1412.51:5411.37:15-1.37:330.14:498:20Waxing Crescent19Mon
20Tue2:0812.02:4711.08:07-0.98:280.44:498:20Waxing Crescent20Tue
21Wed3:0211.43:4010.79:00-0.49:240.74:498:20First Quarter21Wed
22Thu3:5710.84:3410.59:530.110:211.04:498:21First Quarter22Thu
23Fri4:5310.25:2910.310:460.611:181.24:498:21First Quarter23Fri
24Sat5:519.86:2210.111:391.04:508:21First Quarter24Sat
25Sun6:489.47:1510.112:151.212:321.24:508:21Waxing Gibbous25Sun
26Mon7:449.38:0510.21:101.21:241.44:518:21Waxing Gibbous26Mon
27Tue8:369.38:5210.32:021.02:131.44:518:21Waxing Gibbous27Tue
28Wed9:259.49:3610.52:510.82:591.44:518:21Waxing Gibbous28Wed
29Thu10:109.510:1810.73:350.63:421.44:528:21Waxing Gibbous29Thu
30Fri10:519.710:5710.94:170.44:231.34:528:21Full Moon30Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8413564)

Common Questions About Southwest Harbor, ME Tides

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What time does the tide turn (slack tide) in Southwest Harbor, ME today?

Slack tide in Southwest Harbor, ME is approximately 8:32 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

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 37% 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 Third Quarter (37% 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