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 47m 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 - Jul 2034

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:309.811:3511.04:560.25:021.24:538:21Full Moon1Sat
2Sun12:0810.05:340.15:401.14:548:20Full Moon2Sun
3Mon12:1311.112:4610.26:110.06:191.04:548:20Waning Gibbous3Mon
4Tue12:5211.21:2510.36:49-0.17:000.94:558:20Waning Gibbous4Tue
5Wed1:3311.22:0710.57:29-0.27:440.84:558:20Waning Gibbous5Wed
6Thu2:1711.12:5110.78:12-0.28:310.74:568:19Waning Gibbous6Thu
7Fri3:0411.03:3810.88:57-0.29:230.64:578:19Third Quarter7Fri
8Sat3:5610.84:3011.09:47-0.110:190.54:588:18Third Quarter8Sat
9Sun4:5310.65:2611.210:410.111:200.34:588:18Third Quarter9Sun
10Mon5:5510.46:2511.411:400.24:598:17Third Quarter10Mon
11Tue6:5910.37:2611.612:240.012:410.25:008:17Waning Crescent11Tue
12Wed8:0410.48:2711.91:27-0.31:430.25:018:16Waning Crescent12Wed
13Thu9:0610.69:2512.22:29-0.72:440.05:028:16Waning Crescent13Thu
14Fri10:0410.910:2112.43:27-1.03:42-0.15:028:15New Moon14Fri
15Sat10:5911.111:1512.54:23-1.34:37-0.25:038:14New Moon15Sat
16Sun11:5211.35:15-1.35:30-0.25:048:14New Moon16Sun
17Mon12:0612.412:4211.36:05-1.26:22-0.15:058:13Waxing Crescent17Mon
18Tue12:5612.11:3111.26:54-1.07:120.15:068:12Waxing Crescent18Tue
19Wed1:4611.72:1911.07:42-0.68:020.45:078:11Waxing Crescent19Wed
20Thu2:3511.23:0710.78:29-0.18:530.75:088:10Waxing Crescent20Thu
21Fri3:2510.63:5610.49:160.49:441.05:098:10First Quarter21Fri
22Sat4:1610.04:4510.210:050.810:371.25:108:09First Quarter22Sat
23Sun5:099.55:3610.010:541.211:311.45:118:08First Quarter23Sun
24Mon6:049.26:289.911:461.55:128:07First Quarter24Mon
25Tue7:009.07:209.912:261.412:381.75:138:06Waxing Gibbous25Tue
26Wed7:558.98:1110.01:201.31:311.75:148:05Waxing Gibbous26Wed
27Thu8:469.18:5910.32:111.12:201.65:158:03Waxing Gibbous27Thu
28Fri9:349.39:4410.62:590.83:071.45:168:02Waxing Gibbous28Fri
29Sat10:189.610:2610.93:430.53:511.25:178:01Full Moon29Sat
30Sun10:599.911:0711.24:240.24:320.95:188:00Full Moon30Sun
31Mon11:3810.311:4711.45:04-0.15:130.75:207:59Full Moon31Mon
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