Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide (tomorrow) : 9:15 am (0.5 ft)
Next high tide (tomorrow) : in 4h 30m at 3:24 am (10.3 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 4:55 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Jul 1992

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:0011.05:23-1.25:340.04:538:20New Moon1Wed
2Thu12:1212.612:5111.36:14-1.46:28-0.24:538:20Waxing Crescent2Thu
3Fri1:0512.51:4311.57:05-1.47:24-0.34:548:20Waxing Crescent3Fri
4Sat2:0012.32:3711.67:57-1.28:21-0.24:558:20Waxing Crescent4Sat
5Sun2:5611.93:3211.68:51-0.99:20-0.14:558:19First Quarter5Sun
6Mon3:5511.34:2811.59:46-0.510:210.04:568:19First Quarter6Mon
7Tue4:5610.75:2711.310:430.011:240.14:578:19First Quarter7Tue
8Wed5:5910.26:2711.211:420.54:588:18First Quarter8Wed
9Thu7:049.87:2611.112:270.212:430.84:588:18Waxing Gibbous9Thu
10Fri8:069.68:2411.01:290.21:421.14:598:17Waxing Gibbous10Fri
11Sat9:059.69:1711.02:270.22:381.25:008:17Waxing Gibbous11Sat
12Sun9:579.710:0711.03:200.13:301.25:018:16Waxing Gibbous12Sun
13Mon10:459.710:5211.04:090.14:171.15:028:16Full Moon13Mon
14Tue11:279.811:3411.04:520.15:001.15:028:15Full Moon14Tue
15Wed12:079.95:330.15:401.25:038:14Full Moon15Wed
16Thu12:1310.912:459.96:100.26:191.25:048:13Full Moon16Thu
17Fri12:5110.81:2110.06:460.46:571.35:058:13Waning Gibbous17Fri
18Sat1:2810.61:5610.07:210.57:351.35:068:12Waning Gibbous18Sat
19Sun2:0510.32:3310.07:560.78:141.45:078:11Waning Gibbous19Sun
20Mon2:4410.03:1010.08:320.98:551.45:088:10Waning Gibbous20Mon
21Tue3:259.73:5110.09:101.19:401.45:098:09Third Quarter21Tue
22Wed4:109.44:3510.19:521.310:291.45:108:08Third Quarter22Wed
23Thu5:009.25:2410.110:391.511:231.25:118:07Third Quarter23Thu
24Fri5:569.06:1810.311:321.55:128:06Third Quarter24Fri
25Sat6:569.07:1610.612:211.012:301.55:138:05Waning Crescent25Sat
26Sun7:589.38:1511.11:210.61:301.25:148:04Waning Crescent26Sun
27Mon8:579.79:1211.62:200.12:290.85:158:03Waning Crescent27Mon
28Tue9:5310.310:0812.13:17-0.53:270.35:168:02New Moon28Tue
29Wed10:4710.911:0212.64:10-1.04:23-0.25:178:01New Moon29Wed
30Thu11:3911.411:5612.75:02-1.45:17-0.65:188:00New Moon30Thu
31Fri12:3011.85:53-1.66:12-0.85:207:59Waxing 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 6:19 am — 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 72% 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 (72% 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