Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Saturday, June 13, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide (tomorrow) : 3:52 am (-1.1 ft)
Next high tide : in 3h 05m at 9:47 pm (12.2 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 4:48 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Aug 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:1210.710:2812.03:35-0.73:500.15:217:57New Moon1Mon
2Tue11:0410.911:1812.04:27-0.94:420.05:227:56New Moon2Tue
3Wed11:5211.05:16-0.95:310.05:237:55New Moon3Wed
4Thu12:0611.912:3810.96:02-0.76:180.25:247:53New Moon4Thu
5Fri12:5111.61:2210.86:46-0.57:030.45:257:52Waxing Crescent5Fri
6Sat1:3611.22:0510.77:29-0.17:480.65:277:51Waxing Crescent6Sat
7Sun2:2010.82:4710.58:110.38:330.95:287:49Waxing Crescent7Sun
8Mon3:0510.33:3110.28:540.79:191.15:297:48Waxing Crescent8Mon
9Tue3:519.84:1610.09:371.110:081.45:307:46First Quarter9Tue
10Wed4:409.35:049.810:241.510:591.55:317:45First Quarter10Wed
11Thu5:339.05:559.711:141.711:541.55:327:44First Quarter11Thu
12Fri6:288.86:499.712:061.95:337:42First Quarter12Fri
13Sat7:258.87:429.912:491.41:001.85:357:40Waxing Gibbous13Sat
14Sun8:189.08:3210.21:421.21:531.65:367:39Waxing Gibbous14Sun
15Mon9:089.39:2010.62:320.82:421.35:377:37Waxing Gibbous15Mon
16Tue9:549.810:0611.13:190.43:290.95:387:36Full Moon16Tue
17Wed10:3810.310:5011.54:03-0.14:140.55:397:34Full Moon17Wed
18Thu11:2110.811:3411.94:46-0.54:590.15:407:33Full Moon18Thu
19Fri12:0411.25:28-0.85:44-0.35:417:31Full Moon19Fri
20Sat12:2012.012:4811.66:12-1.06:31-0.55:437:29Waning Gibbous20Sat
21Sun1:0712.01:3411.86:57-1.07:20-0.65:447:28Waning Gibbous21Sun
22Mon1:5611.92:2311.97:45-0.88:13-0.65:457:26Waning Gibbous22Mon
23Tue2:4811.53:1511.88:36-0.59:09-0.55:467:24Third Quarter23Tue
24Wed3:4511.04:1211.69:31-0.210:10-0.35:477:23Third Quarter24Wed
25Thu4:4610.65:1311.410:300.211:14-0.15:487:21Third Quarter25Thu
26Fri5:5210.26:1811.211:350.55:507:19Third Quarter26Fri
27Sat7:0010.07:2311.212:210.012:410.65:517:18Waning Crescent27Sat
28Sun8:0510.18:2611.21:26-0.11:450.65:527:16Waning Crescent28Sun
29Mon9:0510.39:2411.42:27-0.22:450.45:537:14Waning Crescent29Mon
30Tue9:5910.510:1611.53:22-0.43:390.25:547:12New Moon30Tue
31Wed10:4710.811:0411.54:12-0.54:280.15:557:10New Moon31Wed
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 12:49 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 3% 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 New Moon (3% 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