Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide : 12:11 pm (1.0 ft)
Next high tide : in 5h 18m at 6:27 am (9.7 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 4:49 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Feb 2044

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:5710.95:240.65:50-0.26:514:42Waxing Crescent1Mon
2Tue12:2410.312:3510.96:020.46:25-0.26:504:43Waxing Crescent2Tue
3Wed1:0110.51:1710.66:430.37:040.06:484:45Waxing Crescent3Wed
4Thu1:4210.62:0210.37:280.37:470.26:474:46Waxing Crescent4Thu
5Fri2:2710.72:539.98:190.38:350.56:464:47First Quarter5Fri
6Sat3:1710.63:529.49:160.49:310.96:454:49First Quarter6Sat
7Sun4:1610.64:589.110:200.410:341.16:434:50First Quarter7Sun
8Mon5:2110.56:099.011:300.311:441.26:424:52Waxing Gibbous8Mon
9Tue6:3010.77:209.312:400.16:414:53Waxing Gibbous9Tue
10Wed7:3811.08:249.712:540.91:45-0.46:394:54Waxing Gibbous10Wed
11Thu8:4011.59:2110.21:590.52:44-0.86:384:56Full Moon11Thu
12Fri9:3711.810:1310.72:570.03:37-1.16:374:57Full Moon12Fri
13Sat10:2912.011:0111.03:51-0.44:26-1.36:354:59Full Moon13Sat
14Sun11:1812.011:4711.24:41-0.65:12-1.26:345:00Full Moon14Sun
15Mon12:0511.75:30-0.65:57-0.96:325:01Waning Gibbous15Mon
16Tue12:3211.212:5211.26:17-0.46:40-0.46:315:03Waning Gibbous16Tue
17Wed1:1510.91:3810.67:04-0.17:230.26:295:04Waning Gibbous17Wed
18Thu1:5910.62:269.97:510.38:080.86:285:05Waning Gibbous18Thu
19Fri2:4510.23:169.28:410.78:551.46:265:07Third Quarter19Fri
20Sat3:349.74:118.69:341.19:471.96:255:08Third Quarter20Sat
21Sun4:279.45:118.210:321.410:452.26:235:10Third Quarter21Sun
22Mon5:269.26:138.111:331.611:462.36:225:11Third Quarter22Mon
23Tue6:279.27:128.212:331.56:205:12Waning Crescent23Tue
24Wed7:239.48:048.512:442.11:271.26:185:14Waning Crescent24Wed
25Thu8:149.88:508.91:361.82:140.86:175:15Waning Crescent25Thu
26Fri8:5910.29:309.42:221.42:560.46:155:16Waning Crescent26Fri
27Sat9:3910.610:079.83:041.03:330.16:135:18New Moon27Sat
28Sun10:1710.910:4210.33:430.64:09-0.26:125:19New Moon28Sun
29Mon10:5511.111:1710.74:210.24:44-0.36:105:20New Moon29Mon
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 9:19 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 67% 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 First Quarter (67% 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