Nearby Harbors
44.2759’ N, 68.3187’ W

Southwest Harbor, ME

63°
H 69°
L 60°
SSE
6mph
High tide
9:00 am
Photo Credits

Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Monday, August 24, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide : 2:31 pm (1.9 ft)
Next high tide : in 35m at 9:00 am (8.7 ft)
Sunset today : 7:23 pm
Sunrise tomorrow : 5:47 am
Moon phase : Waxing Gibbous (88% 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 - Nov 1949

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:359.77:549.912:540.91:191.26:104:23Waxing Gibbous1Tue
2Wed8:1910.08:409.91:410.92:060.96:114:22Waxing Gibbous2Wed
3Thu8:5910.39:2210.02:230.92:480.66:124:20Waxing Gibbous3Thu
4Fri9:3510.510:009.93:000.93:270.46:144:19Full Moon4Fri
5Sat10:0910.610:369.93:361.04:030.36:154:18Full Moon5Sat
6Sun10:4110.711:129.74:091.24:380.36:164:17Full Moon6Sun
7Mon11:1410.611:479.64:421.35:120.46:184:15Full Moon7Mon
8Tue11:4910.55:161.55:480.56:194:14Waning Gibbous8Tue
9Wed12:249.412:2610.45:521.76:270.66:204:13Waning Gibbous9Wed
10Thu1:049.21:0710.36:321.97:100.86:224:12Waning Gibbous10Thu
11Fri1:489.01:5410.27:172.07:590.86:234:11Waning Gibbous11Fri
12Sat2:389.02:4710.08:092.08:520.96:244:10Third Quarter12Sat
13Sun3:349.03:4710.09:081.99:500.86:264:08Third Quarter13Sun
14Mon4:339.34:5010.110:121.610:500.66:274:07Third Quarter14Mon
15Tue5:349.85:5510.311:171.111:490.36:284:06Waning Crescent15Tue
16Wed6:3210.56:5710.612:200.46:304:05Waning Crescent16Wed
17Thu7:2611.27:5511.012:45-0.11:19-0.36:314:05Waning Crescent17Thu
18Fri8:1911.98:5111.31:38-0.42:14-1.06:324:04New Moon18Fri
19Sat9:0912.59:4411.42:30-0.53:07-1.56:344:03New Moon19Sat
20Sun9:5912.810:3611.43:21-0.63:59-1.86:354:02New Moon20Sun
21Mon10:4812.811:2811.24:12-0.44:50-1.76:364:01New Moon21Mon
22Tue11:3912.55:03-0.25:42-1.46:384:00Waxing Crescent22Tue
23Wed12:2110.812:3112.15:550.26:36-0.96:394:00Waxing Crescent23Wed
24Thu1:1510.41:2611.56:500.77:31-0.46:403:59Waxing Crescent24Thu
25Fri2:1110.02:2310.87:471.18:270.26:413:58First Quarter25Fri
26Sat3:099.63:2310.28:471.59:250.76:423:58First Quarter26Sat
27Sun4:089.34:249.79:491.710:231.06:443:57First Quarter27Sun
28Mon5:079.35:259.410:501.711:191.26:453:57First Quarter28Mon
29Tue6:029.46:239.311:491.66:463:56Waxing Gibbous29Tue
30Wed6:539.67:179.212:111.312:431.36:473:56Waxing Gibbous30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8413564)

www.USHarbors.com

© 2026 US Harbors LLC All rights reserved

The US Harbors tide chart design is protected by copyright. It may be printed for personal use only.
Any commercial use, modification, redistribution, or repackaging without written permission is strictly prohibited.

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 88% 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 (88% 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

Coastal Stories See All

Image Credits: fisheries.noaa.gov.

Technology Week: Launching into the Future with Advanced Technologies

By fisheries.noaa.gov, fisheries.noaa.gov. NOAA scientists rely on cutting-edge technology to collect and analyze the data… More

Ocean Science

Rhyl Frith prepares to catch the FreeFly Astro research drone on the R/V Nancy Foster while tagging whales. Taken under NOAA permit # 27066. Credit: Julia Zeh

Giving North Atlantic Right Whales a Check-Up Using Advanced Technology

By fisheries.noaa.gov, fisheries.noaa.gov. This story is part three of a three-part series. Read about how… More

Ocean Science

Image Credits: Fisheries.noaa.gov.

The Unexpected Catch: Friendship at Sea

By fisheries.noaa.gov, fisheries.noaa.gov. One Random Room Assignment When I graduated from college and entered the… More

Fishing

Members of the monitoring show off adult salmon captured at a monitoring station. From left to right, Kevin Vandenack holds a steelhead, Katherine Stonecypher holds a coho salmon, and Bryan Crouch holds a Chinook salmon. Credit: Katherine Stonecypher/Cal Poly Humboldt

Can Habitat Restoration Help Salmon Recover? Prairie Creek Offers Clues

By fisheries.noaa.gov, fisheries.noaa.gov. This story is part 2 of a 2-part series. Read part 1. When… More

Coastal NewsEnvironment

Prairie Creek project partners gather at the restoration site before construction begins. Credit: Michael Weir/CalTrout

Restoring California’s Prairie Creek Supports Salmon Recovery and Local Community

By fisheries.noaa.gov, fisheries.noaa.gov. This story is part 1 of a 2-part series. Read part 1.… More

Coastal NewsEnvironment

A researcher in a U.S. Coast Guard helicopter first spotted the entangled humpback anchored to the bottom about 20 miles off the Oregon Coast. The whale’s white pectoral flipper extends underwater to the lower left, while white baleen outlines its open lower jaw at bottom right. The entanglement left the whale’s mouth stretched permanently open, making it unable to feed. Photo collected in partnership with Oregon Coast Aquarium, Oregon State University Marine Mammal Institute and Cascadia Research Collective.

Fishing Vessel Joins Trained Team to Free Injured Humpback Whale 20 Miles off Oregon Coast

By fisheries.noaa.gov, fisheries.noaa.gov. An Oregon team joined by experts from Washington and a local fisherman… More

Coastal NewsOcean Awareness

NOAA's GOES West satellite captured this image of three tropical cyclones — Hurricanes Fausto and Genevieve and Typhoon Dolphin — swirling simultaneously in the Pacific Ocean. The image was taken on Tuesday, July 27, at 3:30 PM PDT/ 22:30 UTC. None of the three tropical cyclones made landfall in the United States. Fausto contributed to high surf conditions in Hawaii, and Genevieve also brought high surf to southern California. Typhoon Dolphin continued its track west toward Asia. (Image credit: NOAA Satellites)

Pacific Hurricanes Fausto and Genevieve actually had origins near Africa

By noaa.gov, noaa.gov. It may be surprising, but two of the hurricanes that swirled in… More

Extreme WeatherHurricanesWeather & Tides

Pacific capelin with unknown maturity. Scientists make microscopic observations to determine if capelin spawn only once or if they are capable of spawning over multiple years. Credit: NOAA Fisheries

NOAA Scientists Discover Repeat Spawning in Pacific Capelin

By fisheries.noaa.gov, fisheries.noaa.gov. For certain fish species, like Pacific salmon, reproduction is a once-in-a-lifetime event, known… More

Ocean AwarenessOcean Science

Enforcement officer inventories shark fins. Credit: NOAA Fisheries

NOAA Fisheries Enforcement Officers Deploy for High Seas Patrols Combatting Illegal, Unreported, and Unregulated Fishing

By fisheries.noaa.gov, fisheries.noaa.gov. Enforcement officers from NOAA Fisheries’ Office of Law Enforcement have successfully wrapped up deployments… More

Fishing

Your Privacy Choices