Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Monday, June 8, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide : 10:37 am (0.9 ft)
Next high tide : in 3h 46m at 4:44 am (9.8 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 4:49 am
Moon phase : Third Quarter (47% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Jul 2032

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu6:0110.56:3211.311:470.24:538:20Third Quarter1Thu
2Fri7:0610.27:3211.312:300.112:480.54:548:20Waning Crescent2Fri
3Sat8:0910.08:2911.31:320.01:470.64:548:20Waning Crescent3Sat
4Sun9:0710.09:2311.32:30-0.12:430.74:558:20Waning Crescent4Sun
5Mon10:0010.110:1211.33:24-0.23:350.84:568:19New Moon5Mon
6Tue10:4910.110:5811.34:13-0.24:230.84:568:19New Moon6Tue
7Wed11:3310.211:4111.24:58-0.25:070.94:578:19New Moon7Wed
8Thu12:1410.25:39-0.15:490.94:588:18New Moon8Thu
9Fri12:2111.112:5310.16:190.06:291.14:598:18Waxing Crescent9Fri
10Sat1:0010.91:3110.16:560.27:081.24:598:17Waxing Crescent10Sat
11Sun1:3910.72:0910.17:330.47:471.35:008:17Waxing Crescent11Sun
12Mon2:1810.42:4710.08:100.68:281.45:018:16Waxing Crescent12Mon
13Tue2:5810.13:2710.08:480.89:101.55:028:15Waxing Crescent13Tue
14Wed3:419.74:0910.09:281.09:561.55:038:15First Quarter14Wed
15Thu4:279.54:5410.010:111.210:461.55:048:14First Quarter15Thu
16Fri5:179.25:4310.110:591.411:391.35:058:13First Quarter16Fri
17Sat6:129.16:3610.311:501.45:068:12First Quarter17Sat
18Sun7:109.27:3010.612:351.012:451.35:078:12Waxing Gibbous18Sun
19Mon8:089.58:2611.11:320.61:421.15:088:11Waxing Gibbous19Mon
20Tue9:049.99:2011.62:280.12:380.75:088:10Waxing Gibbous20Tue
21Wed9:5810.410:1312.23:21-0.53:330.35:098:09Full Moon21Wed
22Thu10:5011.011:0512.64:14-1.04:27-0.25:108:08Full Moon22Thu
23Fri11:4111.511:5812.85:05-1.45:20-0.55:128:07Full Moon23Fri
24Sat12:3311.85:55-1.66:14-0.85:138:06Waning Gibbous24Sat
25Sun12:5112.81:2512.06:46-1.67:09-0.85:148:05Waning Gibbous25Sun
26Mon1:4512.52:1712.17:38-1.48:05-0.85:158:04Waning Gibbous26Mon
27Tue2:4012.13:1212.08:32-1.09:03-0.55:168:03Third Quarter27Tue
28Wed3:3811.54:0911.79:27-0.610:04-0.35:178:02Third Quarter28Wed
29Thu4:3910.85:0811.410:250.011:060.05:188:01Third Quarter29Thu
30Fri5:4210.36:0911.111:250.55:198:00Third Quarter30Fri
31Sat6:479.97:1010.912:100.212:270.85:207:58Waning 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 7:40 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 47% 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 (47% 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