Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide (tomorrow) : 12:52 am (0.9 ft)
Next high tide : in 5h 58m at 6:55 pm (10.4 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 4:49 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Dec 2006

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:5211.17:2410.512:080.212:48-0.26:483:55Waxing Gibbous1Fri
2Sat7:4711.68:2210.71:050.01:46-0.76:493:55Waxing Gibbous2Sat
3Sun8:3912.19:1710.81:59-0.12:40-1.26:513:55Full Moon3Sun
4Mon9:3012.310:0910.82:52-0.13:32-1.46:523:54Full Moon4Mon
5Tue10:1912.310:5910.73:420.04:22-1.36:533:54Full Moon5Tue
6Wed11:0812.111:4810.54:320.25:11-1.16:543:54Full Moon6Wed
7Thu11:5711.85:210.56:00-0.76:553:54Waning Gibbous7Thu
8Fri12:3710.212:4611.36:110.86:49-0.36:563:54Waning Gibbous8Fri
9Sat1:269.91:3610.87:011.27:380.26:573:54Waning Gibbous9Sat
10Sun2:179.62:2710.27:531.58:280.76:573:54Third Quarter10Sun
11Mon3:089.33:209.78:461.79:181.16:583:54Third Quarter11Mon
12Tue4:009.24:159.39:421.910:091.46:593:54Third Quarter12Tue
13Wed4:529.25:128.910:391.911:001.67:003:54Third Quarter13Wed
14Thu5:439.36:088.811:351.811:501.77:013:54Waning Crescent14Thu
15Fri6:329.57:028.712:281.57:013:54Waning Crescent15Fri
16Sat7:199.77:528.812:381.71:171.27:023:55Waning Crescent16Sat
17Sun8:0310.08:389.01:241.72:030.87:033:55Waning Crescent17Sun
18Mon8:4510.39:229.22:081.62:460.57:043:55Waning Crescent18Mon
19Tue9:2610.610:039.42:501.53:280.27:043:56New Moon19Tue
20Wed10:0610.910:449.63:311.34:08-0.17:053:56New Moon20Wed
21Thu10:4711.111:259.74:121.24:50-0.27:053:57New Moon21Thu
22Fri11:3011.34:541.05:33-0.47:063:57Waxing Crescent22Fri
23Sat12:089.912:1511.45:390.96:17-0.47:063:58Waxing Crescent23Sat
24Sun12:5410.01:0411.36:270.87:05-0.47:073:58Waxing Crescent24Sun
25Mon1:4310.21:5611.07:200.87:55-0.37:073:59Waxing Crescent25Mon
26Tue2:3510.32:5210.78:170.78:48-0.17:074:00First Quarter26Tue
27Wed3:3010.43:5310.39:180.69:440.17:084:00First Quarter27Wed
28Thu4:2910.64:5810.010:230.510:440.47:084:01First Quarter28Thu
29Fri5:2910.86:049.811:280.211:450.57:084:02Waxing Gibbous29Fri
30Sat6:2911.17:099.812:32-0.17:084:02Waxing Gibbous30Sat
31Sun7:2811.38:079.812:460.61:33-0.57:084:03Waxing Gibbous31Sun
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 9:53 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 67% 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 First Quarter (67% 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