Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Sunday, July 26, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide : 3:03 pm (1.9 ft)
Next high tide : in 5h 42m at 9:34 am (8.9 ft)
Sunset today : 8:05 pm
Sunrise tomorrow : 5:14 am
Moon phase : Waxing Gibbous (92% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Jan 2082

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu11:5611.15:220.75:56-0.27:084:05Waxing Crescent1Thu
2Fri12:319.912:3910.86:060.96:380.17:084:06Waxing Crescent2Fri
3Sat1:139.71:2310.46:501.27:190.57:084:07Waxing Crescent3Sat
4Sun1:559.62:079.97:351.48:000.87:084:08Waxing Crescent4Sun
5Mon2:389.52:539.48:221.68:431.27:084:09First Quarter5Mon
6Tue3:239.33:428.99:111.79:281.57:084:10First Quarter6Tue
7Wed4:109.34:368.610:041.810:161.87:084:11First Quarter7Wed
8Thu5:009.35:338.310:591.711:082.07:074:12First Quarter8Thu
9Fri5:529.46:318.311:551.57:074:13Waxing Gibbous9Fri
10Sat6:459.67:268.512:022.012:501.27:074:14Waxing Gibbous10Sat
11Sun7:3610.08:178.812:551.91:410.77:064:15Waxing Gibbous11Sun
12Mon8:2510.49:059.21:451.62:290.37:064:16Waxing Gibbous12Mon
13Tue9:1211.09:509.72:331.23:15-0.27:054:18Full Moon13Tue
14Wed9:5711.510:3410.13:190.83:59-0.77:054:19Full Moon14Wed
15Thu10:4311.911:1810.54:050.34:43-1.07:044:20Full Moon15Thu
16Fri11:2912.14:520.05:28-1.27:044:21Waning Gibbous16Fri
17Sat12:0310.912:1712.15:40-0.36:13-1.27:034:23Waning Gibbous17Sat
18Sun12:5011.21:0711.86:31-0.47:01-1.07:034:24Waning Gibbous18Sun
19Mon1:3911.31:5911.37:24-0.47:50-0.77:024:25Waning Gibbous19Mon
20Tue2:3111.22:5610.78:21-0.28:44-0.27:014:26Third Quarter20Tue
21Wed3:2611.13:5810.19:220.09:410.37:004:28Third Quarter21Wed
22Thu4:2510.95:049.610:270.110:440.87:004:29Third Quarter22Thu
23Fri5:2910.76:149.311:350.211:501.16:594:30Waning Crescent23Fri
24Sat6:3410.67:219.212:410.16:584:32Waning Crescent24Sat
25Sun7:3710.78:229.412:551.11:430.06:574:33Waning Crescent25Sun
26Mon8:3510.99:169.61:551.02:39-0.26:564:35Waning Crescent26Mon
27Tue9:2711.010:049.82:490.83:28-0.36:554:36New Moon27Tue
28Wed10:1411.110:489.93:380.74:13-0.36:544:37New Moon28Wed
29Thu10:5711.111:2710.04:220.64:54-0.36:534:39New Moon29Thu
30Fri11:3710.95:040.65:31-0.16:524:40New Moon30Fri
31Sat12:0510.012:1510.65:430.76:070.26:514:41Waxing 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 12:18 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 92% 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 Waxing Gibbous (92% 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