Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently falling in Southwest Harbor, ME.
Next low tide : in 24m at 6:11 pm (1.6 ft)
Next high tide (tomorrow) : 12:44 am (10.7 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 4:53 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Mar 2052

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:2611.810:5111.53:50-0.54:16-1.16:085:22New Moon1Fri
2Sat11:1112.011:3411.94:35-0.94:59-1.26:065:23New Moon2Sat
3Sun11:5712.05:21-1.25:44-1.26:055:24Waxing Crescent3Sun
4Mon12:2012.012:4511.86:09-1.36:31-1.06:035:26Waxing Crescent4Mon
5Tue1:0812.01:3711.47:00-1.27:21-0.76:015:27Waxing Crescent5Tue
6Wed2:0011.82:3310.97:56-0.98:17-0.25:595:28First Quarter6Wed
7Thu2:5611.43:3410.38:56-0.59:180.35:585:29First Quarter7Thu
8Fri3:5911.04:429.910:02-0.210:250.65:565:31First Quarter8Fri
9Sat5:0710.75:529.711:110.011:340.75:545:32First Quarter9Sat
10Sun7:1610.67:599.81:180.06:526:33Waxing Gibbous10Sun
11Mon8:2210.79:0010.11:410.62:20-0.26:506:35Waxing Gibbous11Mon
12Tue9:2110.99:5310.52:420.33:16-0.46:496:36Waxing Gibbous12Tue
13Wed10:1311.110:4110.73:360.04:05-0.56:476:37Full Moon13Wed
14Thu11:0011.211:2310.94:24-0.34:49-0.56:456:38Full Moon14Thu
15Fri11:4311.25:08-0.45:30-0.46:436:40Full Moon15Fri
16Sat12:0311.012:2311.05:49-0.46:08-0.26:416:41Full Moon16Sat
17Sun12:4010.91:0110.76:28-0.26:450.16:396:42Waning Gibbous17Sun
18Mon1:1610.81:3910.47:060.07:210.56:386:43Waning Gibbous18Mon
19Tue1:5310.62:1810.07:440.37:580.86:366:45Waning Gibbous19Tue
20Wed2:3110.32:589.68:230.68:371.26:346:46Waning Gibbous20Wed
21Thu3:1110.03:429.29:060.99:201.56:326:47Third Quarter21Thu
22Fri3:569.74:308.99:521.110:081.86:306:48Third Quarter22Fri
23Sat4:469.55:248.710:441.311:021.96:286:50Third Quarter23Sat
24Sun5:419.46:218.711:411.36:276:51Third Quarter24Sun
25Mon6:409.57:199.012:001.812:391.16:256:52Waning Crescent25Mon
26Tue7:389.88:149.512:591.51:340.86:236:53Waning Crescent26Tue
27Wed8:3310.39:0410.11:551.02:260.36:216:55Waning Crescent27Wed
28Thu9:2410.99:5110.92:470.33:15-0.36:196:56Waning Crescent28Thu
29Fri10:1311.410:3711.63:37-0.44:01-0.76:176:57New Moon29Fri
30Sat11:0111.911:2312.14:25-1.04:47-1.16:166:58New Moon30Sat
31Sun11:4912.15:13-1.55:33-1.26:146:59New Moon31Sun
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 9:27 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 97% 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 Full Moon (97% 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