Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide : 8:52 pm (1.3 ft)
Next high tide : in 4h 44m at 3:13 pm (10.0 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 4:55 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Jun 1993

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:2810.68:4911.91:51-0.42:080.14:528:10Waxing Gibbous1Tue
2Wed9:2710.79:4412.22:50-0.83:040.04:518:10Waxing Gibbous2Wed
3Thu10:2310.910:3612.33:46-1.03:590.04:518:11Full Moon3Thu
4Fri11:1510.911:2712.34:38-1.24:510.14:508:12Full Moon4Fri
5Sat12:0610.95:29-1.15:410.34:508:13Full Moon5Sat
6Sun12:1612.112:5510.76:17-0.96:300.54:508:13Waning Gibbous6Sun
7Mon1:0411.71:4310.57:05-0.67:190.84:498:14Waning Gibbous7Mon
8Tue1:5211.32:3010.37:52-0.28:081.14:498:15Waning Gibbous8Tue
9Wed2:4010.83:1810.08:390.28:581.34:498:15Waning Gibbous9Wed
10Thu3:2910.34:069.89:250.69:491.64:498:16Third Quarter10Thu
11Fri4:209.84:559.710:131.010:411.74:488:17Third Quarter11Fri
12Sat5:129.45:449.711:011.311:351.74:488:17Third Quarter12Sat
13Sun6:069.16:349.711:501.64:488:18Third Quarter13Sun
14Mon7:019.07:249.812:291.612:401.74:488:18Waning Crescent14Mon
15Tue7:558.98:1110.11:221.41:301.74:488:18Waning Crescent15Tue
16Wed8:459.18:5710.32:121.12:181.74:488:19Waning Crescent16Wed
17Thu9:339.39:4110.72:590.83:031.54:488:19Waning Crescent17Thu
18Fri10:189.510:2411.03:430.43:471.34:488:20New Moon18Fri
19Sat11:019.811:0711.34:260.14:301.14:488:20New Moon19Sat
20Sun11:4410.111:5011.65:08-0.25:140.94:498:20New Moon20Sun
21Mon12:2710.45:51-0.55:590.74:498:20New Moon21Mon
22Tue12:3411.81:1210.76:35-0.76:460.54:498:20Waxing Crescent22Tue
23Wed1:2111.81:5910.97:21-0.77:360.44:498:21Waxing Crescent23Wed
24Thu2:1111.72:4811.18:09-0.78:300.34:508:21Waxing Crescent24Thu
25Fri3:0411.53:4011.28:59-0.59:260.24:508:21First Quarter25Fri
26Sat4:0011.14:3511.39:52-0.310:270.24:508:21First Quarter26Sat
27Sun5:0110.75:3311.310:490.011:300.14:518:21First Quarter27Sun
28Mon6:0410.46:3411.411:490.24:518:21First Quarter28Mon
29Tue7:1010.27:3411.512:340.012:500.44:528:21Waxing Gibbous29Tue
30Wed8:1410.18:3311.61:37-0.21:510.54:528:21Waxing Gibbous30Wed
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 6:02 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 transitional phase. Tonight's moon is 72% 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 Waning Gibbous (72% 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