Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Saturday, June 13, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide (tomorrow) : 3:52 am (-1.1 ft)
Next high tide : in 6h 12m at 9:47 pm (12.2 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 4:48 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Oct 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:4610.95:130.15:330.06:316:13New Moon1Sat
2Sun12:0610.812:2210.95:500.36:110.26:326:11New Moon2Sun
3Mon12:4410.512:5710.86:250.66:470.36:346:09Waxing Crescent3Mon
4Tue1:2110.21:3210.67:000.97:250.66:356:08Waxing Crescent4Tue
5Wed1:589.92:1010.37:371.28:030.86:366:06Waxing Crescent5Wed
6Thu2:389.62:5010.18:161.58:451.06:376:04Waxing Crescent6Thu
7Fri3:219.33:349.98:581.79:311.26:396:02First Quarter7Fri
8Sat4:099.14:239.79:461.910:221.36:406:00First Quarter8Sat
9Sun5:028.95:179.710:392.011:171.26:415:59First Quarter9Sun
10Mon5:589.06:169.811:371.86:425:57First Quarter10Mon
11Tue6:569.37:1410.112:141.012:361.56:435:55Waxing Gibbous11Tue
12Wed7:519.98:1110.61:100.61:330.96:455:53Waxing Gibbous12Wed
13Thu8:4310.69:0511.22:030.12:270.26:465:52Waxing Gibbous13Thu
14Fri9:3211.39:5611.72:54-0.43:19-0.56:475:50Full Moon14Fri
15Sat10:2012.010:4612.13:43-0.94:09-1.26:485:48Full Moon15Sat
16Sun11:0812.611:3712.34:31-1.25:00-1.66:505:47Full Moon16Sun
17Mon11:5612.95:20-1.35:51-1.96:515:45Full Moon17Mon
18Tue12:2812.212:4612.96:10-1.16:43-1.86:525:43Waning Gibbous18Tue
19Wed1:2112.01:3912.77:02-0.87:38-1.56:545:42Waning Gibbous19Wed
20Thu2:1611.52:3412.37:57-0.48:35-1.16:555:40Waning Gibbous20Thu
21Fri3:1511.03:3411.78:560.19:37-0.66:565:38Third Quarter21Fri
22Sat4:1810.64:3811.110:000.610:41-0.26:575:37Third Quarter22Sat
23Sun5:2310.25:4510.711:070.811:460.16:595:35Third Quarter23Sun
24Mon6:2910.16:5210.512:130.97:005:34Third Quarter24Mon
25Tue7:3110.17:5410.412:480.31:160.87:015:32Waning Crescent25Tue
26Wed8:2710.38:5010.41:460.32:130.67:035:31Waning Crescent26Wed
27Thu9:1710.59:4010.52:380.33:040.37:045:29Waning Crescent27Thu
28Fri10:0110.710:2410.53:250.33:500.17:055:28Waning Crescent28Fri
29Sat10:4110.911:0510.54:060.34:310.07:075:26New Moon29Sat
30Sun11:1810.911:4310.44:450.55:090.07:085:25New Moon30Sun
31Mon11:5310.95:210.65:450.17:095:23New Moon31Mon
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 12:49 am — 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 3% 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 New Moon (3% 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