Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Thursday, July 2, 2026
The tide is currently falling in Southwest Harbor, ME.
Next low tide : in 4h 49m at 6:44 am (0.4 ft)
Next high tide : 1:19 pm (9.6 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 4:53 am
Moon phase : Waning Gibbous (94% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Nov 1997

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:5711.011:2410.34:250.74:500.06:104:23New Moon1Sat
2Sun11:3211.04:590.85:270.06:114:21Waxing Crescent2Sun
3Mon12:0110.212:1011.05:360.96:050.06:134:20Waxing Crescent3Mon
4Tue12:4110.112:5111.06:161.06:480.16:144:19Waxing Crescent4Tue
5Wed1:2510.01:3610.97:001.17:350.26:154:17Waxing Crescent5Wed
6Thu2:149.92:2810.77:511.28:280.26:174:16First Quarter6Thu
7Fri3:089.93:2610.68:481.29:260.26:184:15First Quarter7Fri
8Sat4:0810.04:2910.59:511.010:270.26:194:14First Quarter8Sat
9Sun5:1110.35:3510.610:570.711:300.06:214:12Waxing Gibbous9Sun
10Mon6:1310.76:4010.912:030.26:224:11Waxing Gibbous10Mon
11Tue7:1311.37:4111.212:30-0.31:04-0.46:244:10Waxing Gibbous11Tue
12Wed8:0811.98:3911.51:28-0.62:02-1.06:254:09Waxing Gibbous12Wed
13Thu9:0112.49:3311.72:22-0.82:56-1.56:264:08Full Moon13Thu
14Fri9:5112.710:2511.83:14-0.93:48-1.76:274:07Full Moon14Fri
15Sat10:4112.711:1511.64:04-0.84:39-1.76:294:06Full Moon15Sat
16Sun11:2912.54:54-0.65:28-1.56:304:05Waning Gibbous16Sun
17Mon12:0511.312:1812.15:44-0.26:18-1.06:314:04Waning Gibbous17Mon
18Tue12:5610.91:0811.66:340.37:09-0.56:334:03Waning Gibbous18Tue
19Wed1:4710.42:0011.07:260.88:010.06:344:02Waning Gibbous19Wed
20Thu2:4010.02:5410.48:211.28:540.56:354:02Third Quarter20Thu
21Fri3:359.73:519.99:171.59:490.96:374:01Third Quarter21Fri
22Sat4:319.54:499.510:151.710:441.16:384:00Third Quarter22Sat
23Sun5:269.45:479.411:131.611:371.26:393:59Third Quarter23Sun
24Mon6:199.66:429.312:081.46:403:59Waning Crescent24Mon
25Tue7:089.87:339.412:281.212:591.16:423:58Waning Crescent25Tue
26Wed7:5310.18:199.61:141.11:450.86:433:58Waning Crescent26Wed
27Thu8:3510.49:029.81:581.02:280.56:443:57Waning Crescent27Thu
28Fri9:1410.79:4210.02:380.93:080.26:453:57New Moon28Fri
29Sat9:5111.010:2110.13:170.83:47-0.16:463:56New Moon29Sat
30Sun10:2811.210:5910.33:540.74:25-0.36:473:56New Moon30Sun
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 10:01 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 94% 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 Waning Gibbous (94% 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