Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Tuesday, June 9, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide (tomorrow) : 12:03 am (1.0 ft)
Next high tide : in 6h 06m at 6:11 pm (10.3 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 4:49 am
Moon phase : Third Quarter (37% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Jan 2035

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon4:0610.24:309.89:550.910:200.77:084:04Third Quarter1Mon
2Tue5:0310.05:309.410:551.011:161.07:084:05Third Quarter2Tue
3Wed5:5910.06:309.211:541.07:084:06Waning Crescent3Wed
4Thu6:5310.07:259.212:111.212:500.87:084:07Waning Crescent4Thu
5Fri7:4310.28:159.31:031.21:400.67:084:08Waning Crescent5Fri
6Sat8:2810.49:019.41:511.22:260.47:084:09Waning Crescent6Sat
7Sun9:1010.69:429.62:351.13:080.27:084:10New Moon7Sun
8Mon9:4910.710:209.83:151.03:470.07:084:11New Moon8Mon
9Tue10:2710.910:579.93:530.94:23-0.17:074:12New Moon9Tue
10Wed11:0311.011:3310.04:300.84:59-0.27:074:14New Moon10Wed
11Thu11:3911.05:060.85:34-0.27:074:15Waxing Crescent11Thu
12Fri12:0810.112:1611.05:430.76:10-0.27:064:16Waxing Crescent12Fri
13Sat12:4610.212:5510.96:220.76:49-0.27:064:17Waxing Crescent13Sat
14Sun1:2610.31:3810.77:050.67:31-0.17:054:18Waxing Crescent14Sun
15Mon2:0910.42:2610.57:520.68:170.07:054:19First Quarter15Mon
16Tue2:5810.53:1910.28:450.59:080.27:044:21First Quarter16Tue
17Wed3:5110.64:1910.09:440.410:050.37:044:22First Quarter17Wed
18Thu4:5010.75:249.910:470.211:070.37:034:23First Quarter18Thu
19Fri5:5311.06:3110.011:54-0.17:024:24Waxing Gibbous19Fri
20Sat6:5611.37:3610.312:120.212:58-0.57:024:26Waxing Gibbous20Sat
21Sun7:5711.88:3710.61:150.01:59-1.07:014:27Waxing Gibbous21Sun
22Mon8:5512.29:3311.02:15-0.32:56-1.47:004:28Full Moon22Mon
23Tue9:5012.510:2611.33:11-0.63:50-1.76:594:30Full Moon23Tue
24Wed10:4212.611:1711.54:05-0.84:41-1.86:594:31Full Moon24Wed
25Thu11:3312.44:57-0.85:30-1.66:584:32Waning Gibbous25Thu
26Fri12:0611.412:2312.15:48-0.76:18-1.36:574:34Waning Gibbous26Fri
27Sat12:5511.21:1311.56:38-0.47:07-0.86:564:35Waning Gibbous27Sat
28Sun1:4410.92:0310.97:290.07:55-0.26:554:37Waning Gibbous28Sun
29Mon2:3310.62:5510.28:210.48:440.46:544:38Third Quarter29Mon
30Tue3:2410.23:499.69:150.89:360.96:534:39Third Quarter30Tue
31Wed4:179.84:479.110:121.110:301.36:524:41Third Quarter31Wed
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 9:07 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 37% 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 (37% 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