Nearby Harbors
44.2759’ N, 68.3187’ W

Southwest Harbor, ME

61°
H 67°
L 59°
SSE
4mph
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 3h 05m 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

Hamilton Marine - Southwest Harbor

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

Clark Point Gallery
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 - Feb 1950

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:2010.79:559.62:421.33:21-0.16:514:42Full Moon1Wed
2Thu10:0311.210:3610.03:260.84:02-0.56:504:43Full Moon2Thu
3Fri10:4511.611:1710.54:080.44:43-0.86:494:45Full Moon3Fri
4Sat11:2811.811:5810.94:520.05:23-1.06:484:46Waning Gibbous4Sat
5Sun12:1211.85:36-0.36:05-1.06:464:47Waning Gibbous5Sun
6Mon12:4111.212:5911.56:24-0.46:49-0.86:454:49Waning Gibbous6Mon
7Tue1:2711.31:4911.17:14-0.57:37-0.56:444:50Waning Gibbous7Tue
8Wed2:1611.32:4310.58:08-0.38:280.06:434:52Third Quarter8Wed
9Thu3:0911.13:449.99:07-0.19:250.56:414:53Third Quarter9Thu
10Fri4:0810.84:509.410:120.110:291.06:404:54Third Quarter10Fri
11Sat5:1410.66:029.111:220.311:381.26:394:56Waning Crescent11Sat
12Sun6:2210.57:129.112:310.26:374:57Waning Crescent12Sun
13Mon7:2910.68:169.412:471.21:360.06:364:58Waning Crescent13Mon
14Tue8:3010.99:129.71:500.92:34-0.26:345:00Waning Crescent14Tue
15Wed9:2511.110:0110.02:470.63:25-0.46:335:01New Moon15Wed
16Thu10:1311.310:4510.23:370.44:10-0.56:315:03New Moon16Thu
17Fri10:5811.211:2610.44:230.24:52-0.46:305:04New Moon17Fri
18Sat11:3911.05:050.25:31-0.26:285:05New Moon18Sat
19Sun12:0410.412:1910.75:460.36:070.16:275:07Waxing Crescent19Sun
20Mon12:4110.312:5810.36:250.46:430.56:255:08Waxing Crescent20Mon
21Tue1:1710.21:379.87:050.77:200.96:245:09Waxing Crescent21Tue
22Wed1:559.92:199.37:460.97:581.36:225:11Waxing Crescent22Wed
23Thu2:359.73:048.88:301.28:401.86:205:12First Quarter23Thu
24Fri3:199.43:558.49:191.59:292.16:195:13First Quarter24Fri
25Sat4:109.24:528.110:141.610:242.36:175:15First Quarter25Sat
26Sun5:079.15:548.011:151.611:252.36:155:16First Quarter26Sun
27Mon6:089.26:558.212:161.46:145:18Waxing Gibbous27Mon
28Tue7:079.67:508.712:252.11:121.06:125:19Waxing Gibbous28Tue
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

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