Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide : 8:50 pm (0.5 ft)
Next high tide : in 13m at 3:09 pm (10.8 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 4:49 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Jul 2013

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon6:0410.16:3310.711:490.74:538:20Third Quarter1Mon
2Tue7:059.77:2910.612:300.612:451.04:548:20Waning Crescent2Tue
3Wed8:049.58:2210.61:280.61:401.24:548:20Waning Crescent3Wed
4Thu8:589.59:1110.72:220.62:321.34:558:20Waning Crescent4Thu
5Fri9:479.59:5710.73:120.53:201.34:558:19Waning Crescent5Fri
6Sat10:329.610:3910.83:570.44:041.34:568:19New Moon6Sat
7Sun11:139.711:1810.94:380.34:451.34:578:19New Moon7Sun
8Mon11:519.811:5610.95:170.25:231.24:588:18New Moon8Mon
9Tue12:279.95:540.26:001.24:588:18New Moon9Tue
10Wed12:3210.81:0310.06:290.36:371.24:598:17Waxing Crescent10Wed
11Thu1:0810.81:3910.17:030.37:141.25:008:17Waxing Crescent11Thu
12Fri1:4510.62:1510.27:390.37:531.25:018:16Waxing Crescent12Fri
13Sat2:2510.52:5410.38:160.48:361.15:028:16Waxing Crescent13Sat
14Sun3:0710.33:3610.58:560.59:221.05:028:15First Quarter14Sun
15Mon3:5410.14:2310.69:400.610:130.85:038:14First Quarter15Mon
16Tue4:469.95:1410.810:300.711:100.75:048:14First Quarter16Tue
17Wed5:449.86:1111.011:250.75:058:13First Quarter17Wed
18Thu6:469.87:1111.312:110.412:250.75:068:12Waxing Gibbous18Thu
19Fri7:5010.08:1211.71:130.01:270.55:078:11Waxing Gibbous19Fri
20Sat8:5310.49:1212.22:15-0.52:290.25:088:10Waxing Gibbous20Sat
21Sun9:5210.810:1012.63:15-1.03:29-0.25:098:09Full Moon21Sun
22Mon10:4911.311:0612.84:12-1.44:27-0.55:108:08Full Moon22Mon
23Tue11:4311.65:06-1.65:23-0.75:118:08Full Moon23Tue
24Wed12:0012.812:3611.85:58-1.76:18-0.75:128:07Waning Gibbous24Wed
25Thu12:5412.71:2811.96:50-1.57:12-0.65:138:06Waning Gibbous25Thu
26Fri1:4712.22:2011.77:41-1.18:07-0.45:148:04Waning Gibbous26Fri
27Sat2:4111.73:1211.58:33-0.69:02-0.15:158:03Waning Gibbous27Sat
28Sun3:3611.04:0611.19:250.09:590.35:168:02Third Quarter28Sun
29Mon4:3310.35:0010.810:190.510:570.65:178:01Third Quarter29Mon
30Tue5:329.85:5610.511:141.011:560.95:188:00Third Quarter30Tue
31Wed6:319.36:5310.312:111.45:207:59Third Quarter31Wed
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 5:59 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 27% 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 Waxing Crescent (27% 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