Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Saturday, June 27, 2026
The tide is currently rising in Southwest Harbor, ME.
Next low tide (tomorrow) : 4:11 am (0.5 ft)
Next high tide : in 6h 03m at 10:08 pm (10.5 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 4:51 am
Moon phase : Waxing Gibbous (95% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Aug 2002

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:549.15:199.610:371.611:141.75:207:58Third Quarter1Thu
2Fri5:478.86:099.711:251.85:217:57Third Quarter2Fri
3Sat6:438.77:019.812:081.612:172.05:227:55Waning Crescent3Sat
4Sun7:398.77:5410.11:041.41:111.95:247:54Waning Crescent4Sun
5Mon8:349.08:4610.51:581.02:041.75:257:53Waning Crescent5Mon
6Tue9:279.39:3711.02:500.52:571.35:267:51Waning Crescent6Tue
7Wed10:169.810:2611.53:400.03:470.95:277:50New Moon7Wed
8Thu11:0410.311:1512.04:28-0.54:370.55:287:49New Moon8Thu
9Fri11:5110.85:15-0.95:260.15:297:47New Moon9Fri
10Sat12:0412.312:3911.26:02-1.16:17-0.25:307:46Waxing Crescent10Sat
11Sun12:5412.31:2711.56:50-1.27:09-0.45:327:44Waxing Crescent11Sun
12Mon1:4512.22:1711.77:39-1.18:03-0.55:337:43Waxing Crescent12Mon
13Tue2:3911.83:1011.78:30-0.89:00-0.45:347:41Waxing Crescent13Tue
14Wed3:3611.34:0511.69:24-0.310:00-0.25:357:40First Quarter14Wed
15Thu4:3610.75:0311.410:210.211:030.05:367:38First Quarter15Thu
16Fri5:4010.16:0511.111:220.65:377:37First Quarter16Fri
17Sat6:479.87:0811.012:080.112:260.95:387:35Waxing Gibbous17Sat
18Sun7:539.68:1010.91:130.21:291.15:407:34Waxing Gibbous18Sun
19Mon8:549.79:0811.02:150.12:291.15:417:32Waxing Gibbous19Mon
20Tue9:499.810:0111.13:110.03:230.95:427:30Waxing Gibbous20Tue
21Wed10:3810.010:4811.14:01-0.14:130.85:437:29Full Moon21Wed
22Thu11:2210.111:3211.14:46-0.14:570.85:447:27Full Moon22Thu
23Fri12:0210.25:280.05:390.85:457:25Full Moon23Fri
24Sat12:1211.012:3910.26:060.16:180.85:477:24Full Moon24Sat
25Sun12:5010.81:1510.26:420.36:560.95:487:22Waning Gibbous25Sun
26Mon1:2710.51:5010.27:170.67:331.05:497:20Waning Gibbous26Mon
27Tue2:0510.22:2610.17:510.98:121.25:507:19Waning Gibbous27Tue
28Wed2:449.83:0410.08:281.28:531.35:517:17Waning Gibbous28Wed
29Thu3:269.43:449.89:061.59:381.45:527:15Third Quarter29Thu
30Fri4:119.14:299.79:491.810:271.55:537:13Third Quarter30Fri
31Sat5:028.85:209.710:382.011:221.55:557:12Third Quarter31Sat
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 1:09 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 spring phase. Tonight's moon is 95% 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 (95% 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