Nearby Harbors
44.2759’ N, 68.3187’ W

Southwest Harbor, ME

67°
H 69°
L 57°
SSW
12mph
Low tide
6:00 pm
Photo Credits

Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Saturday, September 12, 2026
The tide is currently falling in Southwest Harbor, ME.
Next low tide : in 2h 49m at 6:00 pm (-0.5 ft)
Next high tide (tomorrow) : 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

Charles M Young Painting of Maine Coast

Clark Point Gallery
Hamilton Marine - Southwest Harbor

Hamilton Marine - Southwest Harbor
A red hull lobster yacht cruising in calm water

John Williams Boat Company
Bowden Marine

Bowden Marine
Billings Diesel & Marine - Diesel Service

Billings Diesel & Marine

Southwest Harbor, ME Tides - Apr 1904

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:0612.311:2712.64:29-1.84:52-1.45:145:59Full Moon1Fri
2Sat11:5712.15:20-1.85:41-1.15:126:01Waning Gibbous2Sat
3Sun12:1612.412:4711.66:10-1.56:30-0.65:106:02Waning Gibbous3Sun
4Mon1:0511.91:3911.07:01-1.07:210.05:096:03Waning Gibbous4Mon
5Tue1:5511.42:3210.47:54-0.58:140.65:076:04Waning Gibbous5Tue
6Wed2:4910.73:289.88:480.19:101.25:056:05Third Quarter6Wed
7Thu3:4510.24:279.39:460.610:091.55:036:07Third Quarter7Thu
8Fri4:469.75:289.110:461.011:101.75:016:08Third Quarter8Fri
9Sat5:479.56:269.111:441.15:006:09Third Quarter9Sat
10Sun6:459.57:209.312:091.612:391.14:586:10Waning Crescent10Sun
11Mon7:389.78:079.61:031.41:290.94:566:12Waning Crescent11Mon
12Tue8:269.98:4910.01:511.02:130.74:546:13Waning Crescent12Tue
13Wed9:0910.19:2810.32:350.72:530.64:536:14Waning Crescent13Wed
14Thu9:4810.310:0310.63:150.43:300.54:516:15New Moon14Thu
15Fri10:2510.410:3810.83:520.14:050.44:496:16New Moon15Fri
16Sat11:0110.511:1211.04:280.04:400.44:486:18New Moon16Sat
17Sun11:3810.511:4811.15:04-0.25:150.54:466:19New Moon17Sun
18Mon12:1710.55:41-0.35:530.54:446:20Waxing Crescent18Mon
19Tue12:2611.212:5810.46:22-0.36:340.64:426:21Waxing Crescent19Tue
20Wed1:0911.11:4410.27:06-0.27:210.84:416:23Waxing Crescent20Wed
21Thu1:5711.02:3510.17:56-0.18:130.94:396:24First Quarter21Thu
22Fri2:5110.93:3310.08:510.09:130.94:386:25First Quarter22Fri
23Sat3:5110.74:3510.09:520.110:180.94:366:26First Quarter23Sat
24Sun4:5710.65:4010.310:570.011:260.64:346:27First Quarter24Sun
25Mon6:0510.86:4310.712:01-0.24:336:29Waxing Gibbous25Mon
26Tue7:1011.07:4311.312:320.11:02-0.44:316:30Waxing Gibbous26Tue
27Wed8:1011.48:3811.81:33-0.51:58-0.74:306:31Waxing Gibbous27Wed
28Thu9:0711.69:2912.22:30-1.02:52-0.94:286:32Full Moon28Thu
29Fri9:5911.810:1812.43:23-1.43:42-0.94:276:33Full Moon29Fri
30Sat10:5011.711:0512.44:13-1.64:31-0.74:256:35Full Moon30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8413564)

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The US Harbors tide chart design is protected by copyright. It may be printed for personal use only.
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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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