Nearby Harbors
44.2759’ N, 68.3187’ W

Southwest Harbor, ME

55°
H -°
L 54°
SSW
6mph
High tide
12:35 am
Photo Credits

Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Saturday, September 12, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide (tomorrow) : 6:21 am (-0.3 ft)
Next high tide (tomorrow) : in 1h 17m at 12:35 am (11.4 ft)
Sunset today : 6:49 pm
Sunrise tomorrow : 6:09 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Featured Local Businesses

A red hull lobster yacht cruising in calm water

John Williams Boat Company
Hamilton Marine - Southwest Harbor

Hamilton Marine - Southwest Harbor
Charles M Young Painting of Maine Coast

Clark Point Gallery
Bowden Marine

Bowden Marine
Billings Diesel & Marine - Diesel Service

Billings Diesel & Marine

Southwest Harbor, ME Tides - Jul 1903

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:1711.33:5411.39:10-0.59:450.23:527:21First Quarter1Wed
2Thu4:1910.84:5311.110:090.010:480.33:527:20First Quarter2Thu
3Fri5:2310.35:5211.011:080.411:500.33:537:20First Quarter3Fri
4Sat6:2610.06:5011.012:070.73:547:20Waxing Gibbous4Sat
5Sun7:259.97:4311.012:480.31:030.93:547:20Waxing Gibbous5Sun
6Mon8:199.88:3311.01:430.21:551.03:557:19Waxing Gibbous6Mon
7Tue9:089.99:1911.02:330.12:431.03:557:19Full Moon7Tue
8Wed9:539.910:0111.03:180.13:271.03:567:19Full Moon8Wed
9Thu10:349.910:4011.03:590.14:071.13:577:18Full Moon9Thu
10Fri11:1210.011:1810.94:380.14:461.13:587:18Full Moon10Fri
11Sat11:4910.011:5510.85:150.25:241.23:587:17Full Moon11Sat
12Sun12:2610.05:510.36:011.33:597:17Waning Gibbous12Sun
13Mon12:3210.71:0210.06:260.46:391.34:007:16Waning Gibbous13Mon
14Tue1:0910.51:3910.17:020.57:181.34:017:16Waning Gibbous14Tue
15Wed1:4910.22:1910.17:400.68:011.34:027:15Waning Gibbous15Wed
16Thu2:3210.03:0110.28:200.78:471.34:037:14Third Quarter16Thu
17Fri3:189.83:4710.39:040.89:381.14:047:14Third Quarter17Fri
18Sat4:109.74:3810.59:540.910:330.94:047:13Third Quarter18Sat
19Sun5:079.65:3310.810:480.911:320.64:057:12Waning Crescent19Sun
20Mon6:089.76:3111.211:460.84:067:11Waning Crescent20Mon
21Tue7:0910.07:2911.712:320.112:450.54:077:11Waning Crescent21Tue
22Wed8:0810.48:2712.21:31-0.51:440.24:087:10Waning Crescent22Wed
23Thu9:0510.99:2312.62:28-1.02:42-0.24:097:09New Moon23Thu
24Fri10:0011.410:1712.93:23-1.43:39-0.64:107:08New Moon24Fri
25Sat10:5411.811:1213.04:17-1.74:34-0.84:117:07New Moon25Sat
26Sun11:4712.05:10-1.85:29-0.94:127:06Waxing Crescent26Sun
27Mon12:0612.812:4112.16:03-1.76:25-0.84:137:05Waxing Crescent27Mon
28Tue1:0112.41:3511.96:56-1.37:22-0.64:147:04Waxing Crescent28Tue
29Wed1:5711.82:3011.77:49-0.88:20-0.34:167:03First Quarter29Wed
30Thu2:5511.23:2611.48:45-0.39:200.14:177:01First Quarter30Thu
31Fri3:5510.54:2411.09:420.310:210.44:187:00First Quarter31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8413564)

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Common Questions About Southwest Harbor, ME Tides

Collapse All
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

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