Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide : 6:11 pm (1.6 ft)
Next high tide : in 2h 29m at 12:43 pm (9.5 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 4:53 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Dec 1998

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:0012.08:3211.31:18-0.51:56-1.16:483:55Waxing Gibbous1Tue
2Wed8:5312.69:2711.62:13-0.82:51-1.66:493:55Full Moon2Wed
3Thu9:4512.910:2111.83:07-0.93:44-1.96:513:55Full Moon3Thu
4Fri10:3713.011:1311.73:59-0.94:36-2.06:523:54Full Moon4Fri
5Sat11:2812.94:52-0.85:29-1.86:533:54Waning Gibbous5Sat
6Sun12:0611.512:2012.55:44-0.56:21-1.56:543:54Waning Gibbous6Sun
7Mon12:5911.21:1411.96:39-0.17:15-1.06:553:54Waning Gibbous7Mon
8Tue1:5410.82:0911.37:340.48:10-0.46:563:54Waning Gibbous8Tue
9Wed2:5010.43:0710.68:320.89:060.16:573:54Third Quarter9Wed
10Thu3:4810.04:0710.19:321.110:020.66:573:54Third Quarter10Thu
11Fri4:469.85:079.610:331.310:590.96:583:54Third Quarter11Fri
12Sat5:429.86:079.411:321.311:531.16:593:54Third Quarter12Sat
13Sun6:369.87:029.312:281.17:003:54Waning Crescent13Sun
14Mon7:2510.07:549.412:451.11:190.97:013:54Waning Crescent14Mon
15Tue8:1110.38:409.51:321.12:060.67:013:54Waning Crescent15Tue
16Wed8:5210.59:229.62:161.12:480.37:023:55Waning Crescent16Wed
17Thu9:3110.710:029.82:571.03:280.17:033:55New Moon17Thu
18Fri10:0810.810:399.93:351.04:060.07:043:55New Moon18Fri
19Sat10:4511.011:169.94:120.94:42-0.17:043:56New Moon19Sat
20Sun11:2111.011:5310.04:480.95:18-0.17:053:56New Moon20Sun
21Mon11:5911.05:250.95:56-0.27:053:57Waxing Crescent21Mon
22Tue12:3210.012:3911.06:050.96:36-0.27:063:57Waxing Crescent22Tue
23Wed1:1310.11:2310.96:480.97:19-0.17:063:58Waxing Crescent23Wed
24Thu1:5810.12:1110.77:360.98:07-0.17:073:58First Quarter24Thu
25Fri2:4710.23:0410.58:300.88:590.07:073:59First Quarter25Fri
26Sat3:4110.44:0410.39:280.79:550.17:073:59First Quarter26Sat
27Sun4:4010.65:0710.210:320.410:550.17:084:00First Quarter27Sun
28Mon5:4010.96:1310.311:370.111:570.07:084:01Waxing Gibbous28Mon
29Tue6:4111.47:1710.512:40-0.47:084:02Waxing Gibbous29Tue
30Wed7:4011.88:1710.812:58-0.21:41-1.07:084:02Waxing Gibbous30Wed
31Thu8:3712.29:1511.01:56-0.42:37-1.47:084:03Full Moon31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8413564)

Common Questions About Southwest Harbor, ME Tides

Show All
What time does the tide turn (slack tide) in Southwest Harbor, ME today?

Slack tide in Southwest Harbor, ME is approximately 3:27 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 spring phase. Tonight's moon is 97% 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 maximum.

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 Full Moon (97% illuminated). This places Southwest Harbor, ME in a spring tide cycle, so tidal ranges are near their weekly maximum 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