Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Friday, June 5, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide : 8:35 pm (1.9 ft)
Next high tide : in 4h 36m at 3:03 pm (9.3 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 4:50 am
Moon phase : Waning Gibbous (76% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Jan 2025

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:2011.411:5610.04:440.95:21-0.57:084:05New Moon1Wed
2Thu12:0311.55:270.76:03-0.67:084:06Waxing Crescent2Thu
3Fri12:3810.212:4811.46:120.66:46-0.67:084:07Waxing Crescent3Fri
4Sat1:2310.41:3611.27:010.57:33-0.57:084:08Waxing Crescent4Sat
5Sun2:1210.62:2910.97:540.48:22-0.27:084:09First Quarter5Sun
6Mon3:0310.73:2610.48:510.49:150.17:084:10First Quarter6Mon
7Tue3:5910.74:2910.09:530.310:130.47:084:11First Quarter7Tue
8Wed4:5810.85:359.710:590.211:150.77:084:12Waxing Gibbous8Wed
9Thu6:0010.96:439.512:050.07:074:13Waxing Gibbous9Thu
10Fri7:0311.17:479.612:190.81:09-0.27:074:14Waxing Gibbous10Fri
11Sat8:0311.38:479.81:210.72:09-0.57:074:15Waxing Gibbous11Sat
12Sun9:0011.59:4210.02:200.63:05-0.77:064:16Full Moon12Sun
13Mon9:5311.610:3210.23:150.53:56-0.87:064:18Full Moon13Mon
14Tue10:4211.611:1910.24:050.44:44-0.87:054:19Full Moon14Tue
15Wed11:2911.44:530.45:29-0.67:054:20Full Moon15Wed
16Thu12:0410.212:1411.25:390.56:12-0.37:044:21Waning Gibbous16Thu
17Fri12:4610.112:5810.76:240.76:530.17:044:22Waning Gibbous17Fri
18Sat1:299.91:4110.27:090.97:340.57:034:24Waning Gibbous18Sat
19Sun2:119.82:269.77:541.28:160.97:024:25Waning Gibbous19Sun
20Mon2:549.63:139.18:421.48:591.47:014:26Third Quarter20Mon
21Tue3:399.44:058.79:321.69:461.87:014:28Third Quarter21Tue
22Wed4:289.35:018.310:271.710:372.07:004:29Third Quarter22Wed
23Thu5:219.26:008.111:241.611:322.26:594:30Third Quarter23Thu
24Fri6:159.36:588.212:211.46:584:32Waning Crescent24Fri
25Sat7:099.67:528.512:282.11:151.16:574:33Waning Crescent25Sat
26Sun8:0010.08:418.81:211.92:050.76:564:34Waning Crescent26Sun
27Mon8:4810.59:269.32:101.52:510.26:554:36Waning Crescent27Mon
28Tue9:3311.010:089.82:551.13:34-0.36:544:37New Moon28Tue
29Wed10:1611.410:5010.23:390.64:16-0.76:534:39New Moon29Wed
30Thu11:0011.811:3210.74:230.24:57-1.06:524:40New Moon30Thu
31Fri11:4411.95:08-0.25:39-1.16:514:41Waxing Crescent31Fri
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 5:49 pm — 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 transitional phase. Tonight's moon is 76% 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 shifting between spring and neap.

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 Waning Gibbous (76% illuminated). This places Southwest Harbor, ME in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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