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 37m 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 - Nov 2060

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon4:498.75:019.710:232.211:061.17:115:22First Quarter1Mon
2Tue5:498.96:049.911:251.97:125:20First Quarter2Tue
3Wed6:489.47:0610.212:050.812:281.47:145:19Waxing Gibbous3Wed
4Thu7:4410.18:0610.61:020.41:290.77:155:18Waxing Gibbous4Thu
5Fri8:3710.99:0211.11:560.02:25-0.17:165:16Waxing Gibbous5Fri
6Sat9:2711.79:5611.52:47-0.43:19-0.97:185:15Full Moon6Sat
7Sun9:1612.49:4811.72:37-0.73:11-1.56:194:14Full Moon7Sun
8Mon10:0412.810:3911.73:26-0.84:02-1.86:204:13Full Moon8Mon
9Tue10:5313.011:3211.54:16-0.74:54-1.96:224:12Full Moon9Tue
10Wed11:4412.85:07-0.45:47-1.66:234:10Waning Gibbous10Wed
11Thu12:2511.112:3712.36:000.06:42-1.26:244:09Waning Gibbous11Thu
12Fri1:2110.71:3411.76:570.57:40-0.66:264:08Waning Gibbous12Fri
13Sat2:2010.22:3411.17:571.08:410.06:274:07Third Quarter13Sat
14Sun3:239.83:3810.59:011.39:430.46:284:06Third Quarter14Sun
15Mon4:279.54:4510.010:071.510:450.76:304:05Third Quarter15Mon
16Tue5:299.55:499.811:121.511:440.96:314:04Third Quarter16Tue
17Wed6:279.66:499.712:121.36:324:03Waning Crescent17Wed
18Thu7:199.87:429.712:381.01:071.16:344:03Waning Crescent18Thu
19Fri8:0510.18:309.71:261.01:550.86:354:02Waning Crescent19Fri
20Sat8:4610.39:139.72:091.02:390.56:364:01Waning Crescent20Sat
21Sun9:2310.59:539.72:491.13:190.36:374:00New Moon21Sun
22Mon9:5910.610:309.73:261.23:560.36:394:00New Moon22Mon
23Tue10:3310.711:069.64:011.34:320.36:403:59New Moon23Tue
24Wed11:0810.611:429.44:361.45:070.36:413:58New Moon24Wed
25Thu11:4310.55:111.65:440.46:423:58Waxing Crescent25Thu
26Fri12:199.312:2110.45:471.76:220.56:443:57Waxing Crescent26Fri
27Sat12:599.21:0210.36:271.87:040.66:453:57Waxing Crescent27Sat
28Sun1:429.11:4710.27:111.97:500.76:463:56Waxing Crescent28Sun
29Mon2:299.12:3710.18:011.98:400.76:473:56First Quarter29Mon
30Tue3:219.33:3310.08:571.79:330.66:483:55First Quarter30Tue
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