44.2759’ N, 68.3187’ W

Southwest Harbor, ME

47°
H 58°
L 54°
NE
5mph
High tide
5:24 am

Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Sunday, October 4, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide : 11:02 am (1.4 ft)
Next high tide : in 53m at 5:24 am (9.4 ft)
Sunset today : 6:08 pm
Sunrise tomorrow : 6:34 am
Moon phase : Third Quarter (38% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Jan 1865

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:4111.212:5612.06:21-0.36:53-1.27:134:09Waxing Crescent1Sun
2Mon1:3111.31:5011.77:14-0.37:44-1.07:134:10Waxing Crescent2Mon
3Tue2:2511.32:4711.28:12-0.28:39-0.67:134:11First Quarter3Tue
4Wed3:2211.23:4810.79:13-0.19:38-0.27:134:12First Quarter4Wed
5Thu4:2211.04:5410.210:180.010:410.17:134:13First Quarter5Thu
6Fri5:2511.06:0210.011:250.011:440.37:124:14Waxing Gibbous6Fri
7Sat6:2911.17:079.912:30-0.27:124:15Waxing Gibbous7Sat
8Sun7:2911.28:0710.112:470.41:30-0.47:124:16Waxing Gibbous8Sun
9Mon8:2511.49:0210.21:450.32:26-0.67:124:17Waxing Gibbous9Mon
10Tue9:1711.59:5210.32:390.23:16-0.77:114:18Full Moon10Tue
11Wed10:0411.510:3710.43:280.24:02-0.77:114:19Full Moon11Wed
12Thu10:4811.411:1910.44:130.24:45-0.67:114:20Full Moon12Thu
13Fri11:2911.311:5910.34:560.35:25-0.47:104:22Full Moon13Fri
14Sat12:0911.05:370.56:04-0.27:104:23Waning Gibbous14Sat
15Sun12:3810.212:4910.66:170.76:420.17:094:24Waning Gibbous15Sun
16Mon1:1710.11:2910.26:580.97:200.57:094:25Waning Gibbous16Mon
17Tue1:569.92:119.87:391.18:000.87:084:27Waning Gibbous17Tue
18Wed2:389.72:559.48:241.38:421.17:074:28Third Quarter18Wed
19Thu3:229.63:449.09:121.49:281.47:074:29Third Quarter19Thu
20Fri4:109.54:388.710:041.510:181.67:064:30Third Quarter20Fri
21Sat5:039.55:358.611:001.411:131.67:054:32Third Quarter21Sat
22Sun5:579.76:348.711:581.17:044:33Waning Crescent22Sun
23Mon6:5210.07:299.112:091.512:530.77:044:34Waning Crescent23Mon
24Tue7:4510.68:229.61:041.11:460.17:034:36Waning Crescent24Tue
25Wed8:3611.29:1110.21:560.72:35-0.57:024:37Waning Crescent25Wed
26Thu9:2411.79:5810.82:460.13:22-1.07:014:38New Moon26Thu
27Fri10:1312.210:4511.33:35-0.44:09-1.57:004:40New Moon27Fri
28Sat11:0112.511:3211.74:24-0.84:56-1.76:594:41New Moon28Sat
29Sun11:5012.65:13-1.15:44-1.86:584:43Waxing Crescent29Sun
30Mon12:2011.912:4112.36:05-1.26:33-1.66:574:44Waxing Crescent30Mon
31Tue1:1111.91:3411.96:58-1.17:24-1.26:564:45Waxing Crescent31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8413564)

Common Questions About Southwest Harbor, ME Tides

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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 38% 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 (38% 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