Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Monday, July 6, 2026
The tide is currently falling in Southwest Harbor, ME.
Next low tide : in 4h 40m at 9:40 pm (1.2 ft)
Next high tide (tomorrow) : 4:12 am (10.0 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 4:56 am
Moon phase : Third Quarter (62% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Jul 2060

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:2911.52:0910.27:31-0.37:451.14:538:20Waxing Crescent1Thu
2Fri2:1811.02:5710.08:190.18:351.34:548:20Waxing Crescent2Fri
3Sat3:0810.53:459.89:060.59:261.54:558:20Waxing Crescent3Sat
4Sun3:5810.04:339.79:520.910:181.74:558:20First Quarter4Sun
5Mon4:499.55:229.610:391.311:111.84:568:19First Quarter5Mon
6Tue5:429.16:119.611:271.64:578:19First Quarter6Tue
7Wed6:378.87:009.712:051.712:171.94:578:19First Quarter7Wed
8Thu7:338.77:499.812:591.61:072.04:588:18Waxing Gibbous8Thu
9Fri8:268.78:3610.01:511.41:562.04:598:18Waxing Gibbous9Fri
10Sat9:168.89:2210.32:401.12:442.05:008:17Waxing Gibbous10Sat
11Sun10:039.010:0610.63:270.83:301.85:018:17Waxing Gibbous11Sun
12Mon10:469.310:4910.94:100.54:131.65:018:16Full Moon12Mon
13Tue11:299.611:3211.24:530.24:561.45:028:15Full Moon13Tue
14Wed12:119.95:35-0.15:401.15:038:15Full Moon14Wed
15Thu12:1511.412:5310.26:17-0.36:250.95:048:14Waning Gibbous15Thu
16Fri1:0011.61:3710.47:00-0.47:120.75:058:13Waning Gibbous16Fri
17Sat1:4711.62:2310.77:45-0.58:020.55:068:12Waning Gibbous17Sat
18Sun2:3611.43:1210.98:32-0.48:550.45:078:12Waning Gibbous18Sun
19Mon3:2911.14:0311.19:21-0.29:520.35:088:11Third Quarter19Mon
20Tue4:2610.74:5711.210:140.110:530.35:098:10Third Quarter20Tue
21Wed5:2710.35:5511.211:100.411:560.25:108:09Third Quarter21Wed
22Thu6:3210.06:5611.312:110.75:118:08Waning Crescent22Thu
23Fri7:379.87:5711.41:000.01:130.85:128:07Waning Crescent23Fri
24Sat8:419.88:5711.52:03-0.12:150.95:138:06Waning Crescent24Sat
25Sun9:419.99:5311.63:03-0.33:140.85:148:05Waning Crescent25Sun
26Mon10:3610.110:4711.73:59-0.54:090.75:158:04New Moon26Mon
27Tue11:2710.211:3611.64:50-0.55:000.75:168:03New Moon27Tue
28Wed12:1410.35:38-0.55:480.75:178:02New Moon28Wed
29Thu12:2311.512:5810.36:23-0.36:340.85:188:00Waxing Crescent29Thu
30Fri1:0811.21:4110.27:060.07:190.95:197:59Waxing Crescent30Fri
31Sat1:5210.82:2310.17:470.38:031.15:207:58Waxing Crescent31Sat
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 12:56 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 transitional phase. Tonight's moon is 62% 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 Third Quarter (62% 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