Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide : 1:57 pm (1.6 ft)
Next high tide : in 2h 55m at 8:24 am (9.2 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 4:50 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Feb 2006

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:1811.612:3612.45:59-0.96:30-1.56:514:42Waxing Crescent1Wed
2Thu1:0811.71:2911.86:53-0.97:20-1.16:494:44Waxing Crescent2Thu
3Fri1:5911.62:2511.17:49-0.68:13-0.56:484:45First Quarter3Fri
4Sat2:5311.33:2410.48:48-0.39:080.26:474:46First Quarter4Sat
5Sun3:5010.94:289.69:500.110:080.86:464:48First Quarter5Sun
6Mon4:5110.55:359.110:560.411:121.36:454:49First Quarter6Mon
7Tue5:5510.26:428.912:020.56:434:51Waxing Gibbous7Tue
8Wed6:5910.17:448.912:171.51:050.56:424:52Waxing Gibbous8Wed
9Thu7:5810.28:399.01:171.52:010.46:414:53Waxing Gibbous9Thu
10Fri8:5010.39:279.22:121.32:510.36:394:55Waxing Gibbous10Fri
11Sat9:3610.510:089.42:591.13:340.26:384:56Full Moon11Sat
12Sun10:1710.610:459.63:421.04:130.16:364:58Full Moon12Sun
13Mon10:5410.611:209.84:200.84:480.16:354:59Full Moon13Mon
14Tue11:2910.611:539.94:560.85:210.26:345:00Full Moon14Tue
15Wed12:0310.45:310.85:520.46:325:02Waning Gibbous15Wed
16Thu12:2510.012:3710.26:050.86:230.56:315:03Waning Gibbous16Thu
17Fri12:5710.01:129.96:400.86:560.86:295:04Waning Gibbous17Fri
18Sat1:3110.01:509.57:180.97:311.16:285:06Waning Gibbous18Sat
19Sun2:089.92:339.17:591.08:111.46:265:07Third Quarter19Sun
20Mon2:519.83:218.88:461.18:581.66:245:09Third Quarter20Mon
21Tue3:409.74:198.59:411.19:531.86:235:10Third Quarter21Tue
22Wed4:389.75:248.410:451.110:571.86:215:11Third Quarter22Wed
23Thu5:439.96:328.711:520.86:205:13Waning Crescent23Thu
24Fri6:5010.47:369.212:051.512:570.36:185:14Waning Crescent24Fri
25Sat7:5311.08:349.91:101.01:57-0.46:165:15Waning Crescent25Sat
26Sun8:5111.79:2710.72:100.32:51-1.06:155:17New Moon26Sun
27Mon9:4512.210:1811.43:06-0.43:41-1.56:135:18New Moon27Mon
28Tue10:3712.511:0611.93:59-1.04:30-1.76:115:19New Moon28Tue
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 11:10 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 Waxing 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