Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide : 9:59 am (0.6 ft)
Next high tide : in 1h 09m at 4:12 am (10.0 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 4:57 am
Moon phase : Third Quarter (52% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Apr 2061

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:0810.59:4210.02:300.93:030.26:127:00Waxing Gibbous1Fri
2Sat10:0110.710:2810.43:240.53:510.06:117:02Waxing Gibbous2Sat
3Sun10:4710.711:0810.74:120.14:340.06:097:03Full Moon3Sun
4Mon11:2910.711:4510.84:55-0.15:130.26:077:04Full Moon4Mon
5Tue12:0810.55:34-0.15:480.46:057:05Full Moon5Tue
6Wed12:2010.812:4510.36:110.06:230.76:037:07Full Moon6Wed
7Thu12:5410.71:2210.06:480.16:571.16:027:08Waning Gibbous7Thu
8Fri1:2810.51:599.67:240.37:331.46:007:09Waning Gibbous8Fri
9Sat2:0410.22:389.28:020.68:101.75:587:10Waning Gibbous9Sat
10Sun2:439.93:218.98:430.98:522.15:567:12Waning Gibbous10Sun
11Mon3:279.64:088.69:291.29:402.35:557:13Third Quarter11Mon
12Tue4:169.45:018.410:201.410:342.45:537:14Third Quarter12Tue
13Wed5:139.36:008.411:171.511:342.35:517:15Third Quarter13Wed
14Thu6:139.36:588.712:161.35:497:16Third Quarter14Thu
15Fri7:139.67:539.212:352.01:121.05:487:18Waning Crescent15Fri
16Sat8:1010.18:4310.01:331.42:040.55:467:19Waning Crescent16Sat
17Sun9:0310.69:3010.82:260.72:520.05:447:20Waning Crescent17Sun
18Mon9:5411.110:1611.53:17-0.13:39-0.45:437:21New Moon18Mon
19Tue10:4311.411:0112.24:06-0.84:24-0.65:417:23New Moon19Tue
20Wed11:3211.611:4712.54:54-1.45:11-0.75:397:24New Moon20Wed
21Thu12:2111.65:44-1.75:58-0.65:387:25New Moon21Thu
22Fri12:3512.61:1311.36:34-1.76:49-0.25:367:26Waxing Crescent22Fri
23Sat1:2512.52:0710.97:28-1.47:420.25:357:27Waxing Crescent23Sat
24Sun2:1912.03:0510.48:24-1.08:410.75:337:29Waxing Crescent24Sun
25Mon3:1911.44:089.99:26-0.49:451.15:317:30First Quarter25Mon
26Tue4:2310.85:159.610:310.110:541.45:307:31First Quarter26Tue
27Wed5:3310.46:239.511:380.45:287:32First Quarter27Wed
28Thu6:4310.17:279.712:041.412:430.65:277:34Waxing Gibbous28Thu
29Fri7:4910.18:259.91:111.21:430.65:257:35Waxing Gibbous29Fri
30Sat8:4710.19:1510.32:100.92:350.65:247:36Waxing Gibbous30Sat
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 7:05 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 neap phase. Tonight's moon is 52% 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 minimum.

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 Third Quarter (52% illuminated). This places Southwest Harbor, ME in a neap tide cycle, so tidal ranges are near their weekly minimum 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