Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently falling in Southwest Harbor, ME.
Next low tide : in 4h 07m at 10:49 am (0.8 ft)
Next high tide : 5:34 pm (10.7 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 4:57 am
Moon phase : Third Quarter (41% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Jun 1988

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:1110.05:33-0.45:391.14:528:10Full Moon1Wed
2Thu12:1511.612:5710.16:19-0.56:271.04:518:11Waning Gibbous2Thu
3Fri1:0311.71:4610.27:08-0.57:181.04:518:11Waning Gibbous3Fri
4Sat1:5511.62:3910.27:59-0.58:130.94:508:12Waning Gibbous4Sat
5Sun2:5011.43:3410.38:53-0.49:120.94:508:13Third Quarter5Sun
6Mon3:4811.14:3210.59:49-0.210:150.84:498:14Third Quarter6Mon
7Tue4:5010.85:3110.610:470.011:190.74:498:14Third Quarter7Tue
8Wed5:5410.56:3110.911:460.24:498:15Third Quarter8Wed
9Thu6:5910.37:2911.112:240.412:440.34:498:15Waning Crescent9Thu
10Fri8:0210.28:2411.41:260.11:420.54:488:16Waning Crescent10Fri
11Sat9:0110.29:1711.62:25-0.22:370.64:488:17Waning Crescent11Sat
12Sun9:5710.210:0811.63:20-0.43:300.74:488:17New Moon12Sun
13Mon10:4810.210:5611.64:11-0.64:200.84:488:18New Moon13Mon
14Tue11:3610.111:4211.54:59-0.55:071.04:488:18New Moon14Tue
15Wed12:2210.05:45-0.35:531.24:488:19New Moon15Wed
16Thu12:2611.21:069.96:30-0.16:371.44:488:19Waxing Crescent16Thu
17Fri1:1011.01:499.77:130.27:211.64:488:19Waxing Crescent17Fri
18Sat1:5310.62:329.67:550.58:051.74:488:20Waxing Crescent18Sat
19Sun2:3710.33:159.58:370.88:501.94:488:20Waxing Crescent19Sun
20Mon3:229.93:599.49:191.09:372.04:498:20First Quarter20Mon
21Tue4:089.64:449.410:021.310:272.04:498:20First Quarter21Tue
22Wed4:579.25:309.510:461.511:181.94:498:21First Quarter22Wed
23Thu5:499.06:179.611:321.74:498:21First Quarter23Thu
24Fri6:438.87:059.812:111.812:211.84:508:21Waxing Gibbous24Fri
25Sat7:378.87:5410.11:041.51:101.84:508:21Waxing Gibbous25Sat
26Sun8:319.08:4210.51:561.12:001.74:508:21Waxing Gibbous26Sun
27Mon9:229.29:3010.92:460.62:501.64:518:21Waxing Gibbous27Mon
28Tue10:129.510:1911.43:360.23:401.34:518:21Full Moon28Tue
29Wed11:019.911:0811.84:24-0.24:301.04:528:21Full Moon29Wed
30Thu11:5010.211:5812.05:13-0.65:200.74:528:21Full Moon30Thu
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 2:11 pm — 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 neap phase. Tonight's moon is 41% 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 Third Quarter (41% 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