Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Saturday, June 27, 2026
The tide is currently falling in Southwest Harbor, ME.
Next low tide : in 57m at 3:27 am (0.6 ft)
Next high tide : 10:04 am (9.2 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 4:51 am
Moon phase : Waxing Gibbous (95% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - May 2050

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:309.38:009.512:551.71:191.35:237:37Waxing Gibbous1Sun
2Mon8:229.48:469.81:481.42:071.25:227:38Waxing Gibbous2Mon
3Tue9:109.69:2810.22:361.02:511.15:207:39Waxing Gibbous3Tue
4Wed9:549.810:0710.63:200.73:321.05:197:40Waxing Gibbous4Wed
5Thu10:3510.010:4510.94:010.34:110.95:177:42Full Moon5Thu
6Fri11:1410.211:2211.14:400.04:480.85:167:43Full Moon6Fri
7Sat11:5310.35:18-0.25:270.75:157:44Full Moon7Sat
8Sun12:0011.412:3310.45:57-0.46:060.75:137:45Full Moon8Sun
9Mon12:4011.51:1610.46:39-0.56:490.75:127:46Waning Gibbous9Mon
10Tue1:2411.52:0110.47:23-0.57:360.75:117:47Waning Gibbous10Tue
11Wed2:1111.42:5010.48:11-0.48:280.85:107:49Waning Gibbous11Wed
12Thu3:0311.33:4410.49:04-0.39:250.85:097:50Third Quarter12Thu
13Fri4:0111.04:4310.410:00-0.210:270.75:077:51Third Quarter13Fri
14Sat5:0310.85:4410.611:00-0.111:320.65:067:52Third Quarter14Sat
15Sun6:0810.76:4610.912:020.05:057:53Third Quarter15Sun
16Mon7:1410.67:4611.212:380.21:030.05:047:54Waning Crescent16Mon
17Tue8:1810.78:4311.61:41-0.22:02-0.15:037:55Waning Crescent17Tue
18Wed9:1710.99:3712.02:40-0.62:58-0.25:027:56Waning Crescent18Wed
19Thu10:1211.010:2812.23:36-1.03:50-0.25:017:57New Moon19Thu
20Fri11:0411.111:1712.24:27-1.24:41-0.15:007:59New Moon20Fri
21Sat11:5311.05:16-1.25:290.14:598:00New Moon21Sat
22Sun12:0412.112:4010.86:04-1.06:160.44:588:01New Moon22Sun
23Mon12:5011.81:2710.66:50-0.77:030.74:588:02Waxing Crescent23Mon
24Tue1:3611.42:1310.37:36-0.37:501.04:578:03Waxing Crescent24Tue
25Wed2:2210.93:0010.08:220.18:381.44:568:04Waxing Crescent25Wed
26Thu3:1010.43:489.79:080.69:281.64:558:05First Quarter26Thu
27Fri3:5910.04:379.69:560.910:191.84:558:05First Quarter27Fri
28Sat4:519.65:279.510:451.211:131.84:548:06First Quarter28Sat
29Sun5:459.36:189.511:341.44:538:07First Quarter29Sun
30Mon6:399.17:089.712:071.712:251.54:538:08First Quarter30Mon
31Tue7:339.17:569.91:011.51:141.54:528:09Waxing Gibbous31Tue
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 6:45 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 95% 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 Waxing Gibbous (95% 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