Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Thursday, July 2, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide : 6:49 pm (1.6 ft)
Next high tide : in 4h 30m at 1:19 pm (9.6 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 4:53 am
Moon phase : Waning Gibbous (94% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - May 1997

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu6:0410.76:4510.512:010.05:237:37Third Quarter1Thu
2Fri7:1010.87:4710.912:330.51:04-0.25:227:38Waning Crescent2Fri
3Sat8:1511.08:4611.41:380.02:05-0.45:207:39Waning Crescent3Sat
4Sun9:1511.39:4011.92:38-0.63:01-0.65:197:40Waning Crescent4Sun
5Mon10:1011.610:3112.33:34-1.13:54-0.85:187:41New Moon5Mon
6Tue11:0311.711:2012.54:27-1.44:44-0.75:167:42New Moon6Tue
7Wed11:5311.65:17-1.55:33-0.55:157:44New Moon7Wed
8Thu12:0812.412:4211.46:06-1.46:21-0.25:147:45Waxing Crescent8Thu
9Fri12:5512.11:3111.06:54-1.17:090.25:127:46Waxing Crescent9Fri
10Sat1:4211.72:2010.67:42-0.67:580.75:117:47Waxing Crescent10Sat
11Sun2:3011.13:0910.28:30-0.18:481.15:107:48Waxing Crescent11Sun
12Mon3:2010.64:009.89:200.39:401.55:097:49First Quarter12Mon
13Tue4:1210.14:539.510:120.810:351.75:087:51First Quarter13Tue
14Wed5:079.75:479.411:051.111:311.85:067:52First Quarter14Wed
15Thu6:049.46:419.411:581.35:057:53First Quarter15Thu
16Fri7:009.37:329.612:271.812:501.35:047:54Waxing Gibbous16Fri
17Sat7:549.38:209.81:211.51:401.35:037:55Waxing Gibbous17Sat
18Sun8:449.59:0410.22:111.22:261.25:027:56Waxing Gibbous18Sun
19Mon9:309.79:4510.62:570.83:091.05:017:57Waxing Gibbous19Mon
20Tue10:1310.010:2510.93:390.43:490.95:007:58Full Moon20Tue
21Wed10:5410.211:0311.24:200.14:290.74:597:59Full Moon21Wed
22Thu11:3510.411:4311.55:00-0.25:090.64:598:00Full Moon22Thu
23Fri12:1610.55:40-0.55:500.64:588:01Full Moon23Fri
24Sat12:2411.712:5910.66:22-0.66:330.54:578:02Waning Gibbous24Sat
25Sun1:0811.71:4510.77:07-0.77:210.54:568:03Waning Gibbous25Sun
26Mon1:5611.72:3510.77:56-0.78:120.64:558:04Waning Gibbous26Mon
27Tue2:4811.53:2810.78:47-0.59:090.64:558:05Third Quarter27Tue
28Wed3:4411.34:2610.79:43-0.410:100.64:548:06Third Quarter28Wed
29Thu4:4511.05:2610.810:42-0.211:140.54:538:07Third Quarter29Thu
30Fri5:4910.86:2811.011:43-0.14:538:08Third Quarter30Fri
31Sat6:5510.77:2911.312:200.312:45-0.14:528:09Waning Crescent31Sat
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 4:04 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 94% 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 Waning Gibbous (94% 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