Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently falling in Southwest Harbor, ME.
Next low tide : in 32m at 12:52 am (0.9 ft)
Next high tide : 7:27 am (9.4 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 4:50 am
Moon phase : Waxing Gibbous (76% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Sep 2045

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:049.92:2010.47:441.08:120.85:567:09Waning Gibbous1Fri
2Sat2:459.63:0110.48:221.28:560.95:587:07Third Quarter2Sat
3Sun3:319.33:4710.39:061.59:480.95:597:05Third Quarter3Sun
4Mon4:249.14:4210.39:581.610:471.06:007:03Third Quarter4Mon
5Tue5:258.95:4510.310:591.711:530.86:017:02Third Quarter5Tue
6Wed6:329.06:5210.612:061.66:027:00Waning Crescent6Wed
7Thu7:399.37:5811.01:000.51:141.26:036:58Waning Crescent7Thu
8Fri8:419.99:0011.52:030.02:190.66:056:56Waning Crescent8Fri
9Sat9:3810.79:5812.03:01-0.53:18-0.16:066:54New Moon9Sat
10Sun10:3111.410:5212.33:54-1.04:14-0.76:076:52New Moon10Sun
11Mon11:2112.011:4412.44:44-1.35:07-1.16:086:50New Moon11Mon
12Tue12:0912.35:33-1.35:58-1.36:096:49Waxing Crescent12Tue
13Wed12:3512.212:5712.36:21-1.06:50-1.26:106:47Waxing Crescent13Wed
14Thu1:2611.71:4612.17:10-0.67:42-0.96:116:45Waxing Crescent14Thu
15Fri2:1911.12:3611.78:000.18:36-0.46:136:43Waxing Crescent15Fri
16Sat3:1310.43:3011.18:520.79:320.26:146:41First Quarter16Sat
17Sun4:119.74:2710.59:481.310:320.76:156:39First Quarter17Sun
18Mon5:129.25:2810.010:491.811:341.16:166:37First Quarter18Mon
19Tue6:168.96:329.811:522.06:176:36First Quarter19Tue
20Wed7:178.87:339.812:361.212:532.06:186:34Waxing Gibbous20Wed
21Thu8:138.98:289.91:341.21:501.86:206:32Waxing Gibbous21Thu
22Fri9:029.29:1610.12:251.02:401.56:216:30Waxing Gibbous22Fri
23Sat9:459.69:5910.33:090.83:241.26:226:28Waxing Gibbous23Sat
24Sun10:239.910:3810.43:490.74:040.96:236:26Full Moon24Sun
25Mon10:5810.211:1410.44:240.64:410.66:246:24Full Moon25Mon
26Tue11:3110.511:4910.44:580.65:170.56:256:22Full Moon26Tue
27Wed12:0210.75:300.65:510.46:276:21Full Moon27Wed
28Thu12:2410.312:3510.86:020.86:260.36:286:19Waning Gibbous28Thu
29Fri1:0010.11:1010.86:350.97:040.36:296:17Waning Gibbous29Fri
30Sat1:389.91:4810.87:121.17:460.46:306:15Waning 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 4:09 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 76% 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 Gibbous (76% 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