Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Friday, June 5, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide : 8:35 pm (1.9 ft)
Next high tide : in 3h 33m at 3:03 pm (9.3 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 4:50 am
Moon phase : Waning Gibbous (76% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Jan 2028

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:159.61:2310.16:521.47:170.77:084:04Waxing Crescent1Sat
2Sun1:549.52:049.77:331.57:560.97:084:05Waxing Crescent2Sun
3Mon2:349.52:489.38:171.68:361.27:084:06First Quarter3Mon
4Tue3:179.43:369.09:051.79:211.47:084:07First Quarter4Tue
5Wed4:049.44:308.79:571.610:101.67:084:08First Quarter5Wed
6Thu4:559.55:288.610:541.511:031.77:084:09First Quarter6Thu
7Fri5:499.86:278.711:521.17:084:10Waxing Gibbous7Fri
8Sat6:4410.27:269.012:001.612:490.77:084:11Waxing Gibbous8Sat
9Sun7:3910.78:219.412:561.31:440.17:074:12Waxing Gibbous9Sun
10Mon8:3311.39:1310.01:510.92:37-0.57:074:13Full Moon10Mon
11Tue9:2511.910:0410.52:450.43:28-1.17:074:14Full Moon11Tue
12Wed10:1612.310:5311.03:37-0.14:17-1.57:064:15Full Moon12Wed
13Thu11:0712.611:4211.34:28-0.55:06-1.77:064:17Full Moon13Thu
14Fri11:5812.65:21-0.75:56-1.77:064:18Waning Gibbous14Fri
15Sat12:3311.612:5112.36:14-0.86:46-1.57:054:19Waning Gibbous15Sat
16Sun1:2411.61:4511.87:09-0.77:38-1.07:054:20Waning Gibbous16Sun
17Mon2:1711.52:4211.18:07-0.58:32-0.57:044:22Third Quarter17Mon
18Tue3:1311.23:4310.49:08-0.29:290.17:034:23Third Quarter18Tue
19Wed4:1210.94:489.710:120.110:300.77:034:24Third Quarter19Wed
20Thu5:1410.65:569.311:170.311:341.17:024:25Waning Crescent20Thu
21Fri6:1710.57:019.112:220.47:014:27Waning Crescent21Fri
22Sat7:1810.48:019.212:361.21:220.37:004:28Waning Crescent22Sat
23Sun8:1410.58:549.31:351.22:170.27:004:29Waning Crescent23Sun
24Mon9:0410.69:419.52:271.13:050.16:594:31New Moon24Mon
25Tue9:4910.710:229.63:130.93:480.06:584:32New Moon25Tue
26Wed10:3010.811:009.73:550.84:260.06:574:33New Moon26Wed
27Thu11:0710.811:359.84:340.85:020.06:564:35New Moon27Thu
28Fri11:4310.65:110.85:360.26:554:36Waxing Crescent28Fri
29Sat12:099.912:1810.45:460.86:080.36:544:38Waxing Crescent29Sat
30Sun12:429.912:5310.26:220.96:410.56:534:39Waxing Crescent30Sun
31Mon1:169.91:309.86:591.07:150.86:524:40Waxing Crescent31Mon
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 5:49 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 76% 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 (76% 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