Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Southwest Harbor, ME.
Next low tide : in 2h 17m at 11:52 pm (0.9 ft)
Next high tide (tomorrow) : 6:27 am (9.7 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 4:49 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Nov 2043

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:0910.910:3710.13:360.74:030.06:104:23New Moon1Sun
2Mon10:4410.911:159.94:120.94:400.16:114:21New Moon2Mon
3Tue11:1910.711:529.74:481.25:170.36:134:20New Moon3Tue
4Wed11:5410.55:231.55:540.56:144:19Waxing Crescent4Wed
5Thu12:299.412:3110.35:591.86:320.86:154:17Waxing Crescent5Thu
6Fri1:089.11:1110.06:372.07:131.06:174:16Waxing Crescent6Fri
7Sat1:508.91:549.87:202.27:571.26:184:15Waxing Crescent7Sat
8Sun2:368.72:429.68:072.38:461.36:194:14First Quarter8Sun
9Mon3:278.63:369.58:592.49:391.36:214:13First Quarter9Mon
10Tue4:218.84:339.59:572.210:331.26:224:11First Quarter10Tue
11Wed5:169.15:329.710:561.811:260.96:234:10First Quarter11Wed
12Thu6:099.76:2910.011:531.26:254:09Waxing Gibbous12Thu
13Fri7:0010.47:2410.412:180.612:490.56:264:08Waxing Gibbous13Fri
14Sat7:4911.18:1710.81:080.21:41-0.36:274:07Waxing Gibbous14Sat
15Sun8:3611.99:0911.11:57-0.12:32-1.06:294:06Full Moon15Sun
16Mon9:2412.410:0011.32:46-0.43:23-1.56:304:05Full Moon16Mon
17Tue10:1312.810:5111.33:35-0.44:14-1.76:314:04Full Moon17Tue
18Wed11:0312.811:4411.24:25-0.45:06-1.76:324:03Waning Gibbous18Wed
19Thu11:5612.65:18-0.26:00-1.56:344:03Waning Gibbous19Thu
20Fri12:3910.912:5112.26:130.26:57-1.06:354:02Waning Gibbous20Fri
21Sat1:3710.51:5111.67:120.67:57-0.56:364:01Waning Gibbous21Sat
22Sun2:3810.12:5411.08:160.98:590.06:384:00Third Quarter22Sun
23Mon3:429.94:0010.59:231.210:020.36:394:00Third Quarter23Mon
24Tue4:469.85:0810.110:301.211:040.66:403:59Third Quarter24Tue
25Wed5:489.96:129.811:351.16:413:58Waning Crescent25Wed
26Thu6:4510.17:119.712:020.812:350.96:423:58Waning Crescent26Thu
27Fri7:3610.38:059.712:550.91:290.66:443:57Waning Crescent27Fri
28Sat8:2210.58:539.71:431.02:170.46:453:57Waning Crescent28Sat
29Sun9:0310.69:369.72:281.13:010.26:463:56New Moon29Sun
30Mon9:4210.710:169.63:081.23:410.26:473:56New Moon30Mon
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 3:09 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 neap phase. Tonight's moon is 58% 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 minimum.

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 First Quarter (58% illuminated). This places Southwest Harbor, ME in a neap tide cycle, so tidal ranges are near their weekly minimum 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