Tides Today & Tomorrow in Bass Harbor, ME

TIDE TIMES for Friday, August 21, 2026
The tide is currently falling in Bass Harbor, ME.
Next low tide : in 4h 26m at 11:46 am (2.2 ft)
Next high tide : 6:31 pm (9.3 ft)
Sunset today : 7:29 pm
Sunrise tomorrow : 5:44 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8413651
Common Questions About Tides

Bass Harbor, ME Tides - Mar 1973

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:009.58:338.81:181.61:540.86:105:21Waning Crescent1Thu
2Fri8:469.99:159.32:051.22:360.46:085:22Waning Crescent2Fri
3Sat9:2810.39:539.82:480.73:150.06:065:23New Moon3Sat
4Sun10:0810.610:3010.43:290.23:53-0.36:055:25New Moon4Sun
5Mon10:4710.911:0810.84:08-0.24:30-0.56:035:26New Moon5Mon
6Tue11:2811.011:4711.14:49-0.55:08-0.56:015:27New Moon6Tue
7Wed12:1010.95:31-0.85:48-0.55:595:29Waxing Crescent7Wed
8Thu12:2811.312:5610.76:16-0.86:32-0.35:585:30Waxing Crescent8Thu
9Fri1:1311.31:4510.37:05-0.77:200.15:565:31Waxing Crescent9Fri
10Sat2:0311.12:409.87:59-0.48:150.55:545:32First Quarter10Sat
11Sun3:0010.73:429.48:59-0.19:170.85:525:34First Quarter11Sun
12Mon4:0410.44:519.110:070.210:261.15:505:35First Quarter12Mon
13Tue5:1410.26:039.111:180.311:391.05:495:36Waxing Gibbous13Tue
14Wed6:2610.27:119.412:260.15:475:38Waxing Gibbous14Wed
15Thu7:3310.48:119.812:480.71:28-0.25:455:39Waxing Gibbous15Thu
16Fri8:3210.79:0410.31:490.22:23-0.45:435:40Waxing Gibbous16Fri
17Sat9:2510.99:5210.72:44-0.23:12-0.65:415:41Full Moon17Sat
18Sun10:1311.010:3510.93:33-0.63:57-0.65:395:43Full Moon18Sun
19Mon10:5810.911:1611.04:19-0.74:38-0.45:385:44Full Moon19Mon
20Tue11:4010.711:5510.95:02-0.75:18-0.15:365:45Full Moon20Tue
21Wed12:2110.35:43-0.55:570.35:345:46Waning Gibbous21Wed
22Thu12:3310.61:029.96:23-0.26:360.75:325:48Waning Gibbous22Thu
23Fri1:1310.31:439.47:040.27:161.25:305:49Waning Gibbous23Fri
24Sat1:549.92:278.97:480.67:591.65:285:50Waning Gibbous24Sat
25Sun2:389.53:168.58:341.08:471.95:275:51Third Quarter25Sun
26Mon3:289.24:098.29:261.49:412.15:255:52Third Quarter26Mon
27Tue4:248.95:078.110:221.510:392.25:235:54Third Quarter27Tue
28Wed5:238.96:058.211:201.511:392.05:215:55Third Quarter28Wed
29Thu6:219.06:598.612:161.35:195:56Waning Crescent29Thu
30Fri7:169.37:489.112:351.61:060.95:175:57Waning Crescent30Fri
31Sat8:069.78:329.71:251.11:520.55:165:59Waning Crescent31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8413651)

Common Questions About Bass Harbor, ME Tides

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What time does the tide turn (slack tide) in Bass Harbor, ME today?

Slack tide in Bass Harbor, ME is approximately 3:08 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 Bass Harbor, ME?

Bass Harbor, ME is currently in a transitional phase. Tonight's moon is 65% 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 Bass 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 Bass Harbor, ME?

Tide predictions for Bass 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 Bass Harbor, ME?

Tide data for Bass Harbor, ME is sourced from NOAA Station #8413651. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8413651.

What is the moon phase in Bass Harbor, ME tonight?

Tonight the moon over Bass Harbor, ME is First Quarter (65% illuminated). This places Bass 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