Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Saturday, June 27, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide : 3:33 pm (1.7 ft)
Next high tide : in 3h 54m at 10:04 am (9.2 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 4:51 am
Moon phase : Waxing Gibbous (95% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Dec 2002

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:3111.58:0211.012:49-0.21:25-0.66:483:55Waning Crescent1Sun
2Mon8:2412.18:5811.21:44-0.42:21-1.26:493:55New Moon2Mon
3Tue9:1512.59:5111.32:37-0.63:15-1.66:513:55New Moon3Tue
4Wed10:0612.710:4311.33:28-0.64:06-1.76:523:54New Moon4Wed
5Thu10:5512.611:3511.14:19-0.44:57-1.66:533:54New Moon5Thu
6Fri11:4512.45:10-0.15:48-1.36:543:54Waxing Crescent6Fri
7Sat12:2610.812:3611.96:010.36:39-0.96:553:54Waxing Crescent7Sat
8Sun1:1810.41:2811.36:540.77:31-0.36:563:54Waxing Crescent8Sun
9Mon2:1110.02:2210.77:481.18:250.26:573:54First Quarter9Mon
10Tue3:059.63:1910.18:451.59:190.76:573:54First Quarter10Tue
11Wed4:019.44:179.69:431.710:141.06:583:54First Quarter11Wed
12Thu4:579.35:169.310:421.711:071.36:593:54First Quarter12Thu
13Fri5:519.46:139.111:401.611:591.47:003:54First Quarter13Fri
14Sat6:429.57:079.112:341.47:013:54Waxing Gibbous14Sat
15Sun7:289.87:579.212:481.41:231.17:013:54Waxing Gibbous15Sun
16Mon8:1210.18:429.31:331.42:080.77:023:55Waxing Gibbous16Mon
17Tue8:5210.49:249.42:161.32:500.47:033:55Waxing Gibbous17Tue
18Wed9:3010.610:049.62:551.23:300.27:043:55Full Moon18Wed
19Thu10:0810.810:439.73:341.24:080.07:043:56Full Moon19Thu
20Fri10:4611.011:219.74:121.14:46-0.17:053:56Full Moon20Fri
21Sat11:2511.14:501.15:26-0.27:053:57Waning Gibbous21Sat
22Sun12:019.812:0611.15:311.16:07-0.27:063:57Waning Gibbous22Sun
23Mon12:449.912:5011.16:151.06:52-0.27:063:58Waning Gibbous23Mon
24Tue1:299.91:3911.07:031.07:40-0.27:073:58Waning Gibbous24Tue
25Wed2:1910.02:3210.77:560.98:31-0.17:073:59Third Quarter25Wed
26Thu3:1310.13:3110.58:550.99:270.17:073:59Third Quarter26Thu
27Fri4:1010.34:3410.29:580.710:250.27:084:00Third Quarter27Fri
28Sat5:1010.65:3910.111:040.411:260.27:084:01Third Quarter28Sat
29Sun6:1111.06:4510.112:080.07:084:02Waning Crescent29Sun
30Mon7:1011.47:4710.312:260.21:10-0.57:084:02Waning Crescent30Mon
31Tue8:0611.88:4310.31:250.12:08-0.97:084:03Waning Crescent31Tue
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 12:48 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 spring phase. Tonight's moon is 95% 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 (95% 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