Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Thursday, June 4, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide (tomorrow) : 8:25 am (0.8 ft)
Next high tide (tomorrow) : in 4h 45m at 2:25 am (10.3 ft)
Sunset today : 8:12 pm
Sunrise tomorrow : 4:50 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Jan 2027

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:2410.45:599.411:220.611:381.17:084:04Third Quarter1Fri
2Sat6:2110.37:009.212:230.67:084:05Waning Crescent2Sat
3Sun7:1610.37:569.112:351.31:190.57:084:06Waning Crescent3Sun
4Mon8:0810.48:479.21:291.42:100.47:084:07Waning Crescent4Mon
5Tue8:5410.59:329.32:181.42:560.37:084:08Waning Crescent5Tue
6Wed9:3710.610:129.43:021.33:380.27:084:09New Moon6Wed
7Thu10:1710.710:509.53:431.24:160.27:084:10New Moon7Thu
8Fri10:5410.711:269.54:211.24:520.27:084:11New Moon8Fri
9Sat11:3010.74:571.25:270.27:074:12New Moon9Sat
10Sun12:009.612:0510.65:321.26:010.37:074:13Waxing Crescent10Sun
11Mon12:349.612:4110.46:081.26:340.47:074:15Waxing Crescent11Mon
12Tue1:099.71:1810.26:461.27:090.57:064:16Waxing Crescent12Tue
13Wed1:469.81:599.97:271.27:470.67:064:17Waxing Crescent13Wed
14Thu2:269.92:449.68:111.18:290.87:054:18First Quarter14Thu
15Fri3:1110.03:359.39:021.19:171.07:054:19First Quarter15Fri
16Sat4:0210.14:339.19:590.910:121.27:044:21First Quarter16Sat
17Sun4:5810.35:389.011:010.711:131.27:044:22Waxing Gibbous17Sun
18Mon6:0010.56:459.212:070.37:034:23Waxing Gibbous18Mon
19Tue7:0411.07:499.612:181.01:11-0.27:034:24Waxing Gibbous19Tue
20Wed8:0511.58:4910.11:220.72:12-0.77:024:26Waxing Gibbous20Wed
21Thu9:0412.19:4510.62:230.23:08-1.37:014:27Full Moon21Thu
22Fri10:0012.510:3811.13:20-0.34:02-1.67:004:28Full Moon22Fri
23Sat10:5412.711:2911.44:15-0.74:53-1.86:594:30Full Moon23Sat
24Sun11:4612.65:09-0.95:43-1.76:594:31Waning Gibbous24Sun
25Mon12:2011.612:3812.26:02-0.96:33-1.46:584:32Waning Gibbous25Mon
26Tue1:1011.51:3111.66:55-0.77:22-0.86:574:34Waning Gibbous26Tue
27Wed2:0111.32:2510.97:50-0.38:13-0.26:564:35Third Quarter27Wed
28Thu2:5310.93:2210.18:460.19:060.56:554:36Third Quarter28Thu
29Fri3:4710.54:229.49:450.510:021.16:544:38Third Quarter29Fri
30Sat4:4510.15:258.910:470.811:021.66:534:39Third Quarter30Sat
31Sun5:449.86:288.611:491.06:524:41Waning Crescent31Sun
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 5:25 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 spring phase. Tonight's moon is 84% 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 maximum.

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 (84% illuminated). This places Southwest Harbor, ME in a spring tide cycle, so tidal ranges are near their weekly maximum 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