Tides Today & Tomorrow in Bass Harbor, ME

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently falling in Bass Harbor, ME.
Next low tide : in 1h 22m at 9:08 am (0.8 ft)
Next high tide : 3:50 pm (10.2 ft)
Sunset today : 7:33 pm
Sunrise tomorrow : 5:40 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8413651
Common Questions About Tides

Bass Harbor, ME Tides - Jan 1977

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:459.78:178.91:011.31:390.77:084:05Waxing Gibbous1Sat
2Sun8:3010.09:029.11:481.22:240.47:094:06Waxing Gibbous2Sun
3Mon9:1210.29:449.32:321.13:060.27:084:07Full Moon3Mon
4Tue9:5110.510:229.53:120.93:450.07:084:08Full Moon4Tue
5Wed10:2810.710:599.73:500.84:22-0.27:084:09Full Moon5Wed
6Thu11:0610.811:369.94:280.74:58-0.37:084:10Full Moon6Thu
7Fri11:4310.95:050.55:35-0.47:084:11Waning Gibbous7Fri
8Sat12:1310.012:2310.95:450.46:13-0.47:084:12Waning Gibbous8Sat
9Sun12:5310.21:0510.86:270.46:54-0.47:084:13Waning Gibbous9Sun
10Mon1:3610.31:5110.67:130.37:39-0.37:074:14Waning Gibbous10Mon
11Tue2:2310.42:4210.38:040.38:29-0.17:074:15Third Quarter11Tue
12Wed3:1410.43:3910.09:000.39:230.17:064:16Third Quarter12Wed
13Thu4:1110.54:429.710:020.210:230.37:064:17Third Quarter13Thu
14Fri5:1310.65:499.611:080.111:280.37:064:19Waning Crescent14Fri
15Sat6:1710.86:579.712:15-0.27:054:20Waning Crescent15Sat
16Sun7:2011.18:0010.012:330.21:19-0.67:044:21Waning Crescent16Sun
17Mon8:2011.58:5910.31:350.02:18-1.07:044:22Waning Crescent17Mon
18Tue9:1711.89:5410.62:34-0.33:13-1.37:034:24New Moon18Tue
19Wed10:1011.910:4510.83:28-0.54:04-1.57:034:25New Moon19Wed
20Thu11:0011.911:3310.94:20-0.64:53-1.47:024:26New Moon20Thu
21Fri11:4811.75:10-0.65:40-1.27:014:28Waxing Crescent21Fri
22Sat12:2010.812:3611.35:58-0.46:26-0.87:004:29Waxing Crescent22Sat
23Sun1:0610.61:2310.86:46-0.17:11-0.37:004:30Waxing Crescent23Sun
24Mon1:5210.32:1110.27:340.37:570.26:594:32Waxing Crescent24Mon
25Tue2:3810.03:009.68:240.78:440.76:584:33First Quarter25Tue
26Wed3:279.63:529.09:151.09:331.26:574:34First Quarter26Wed
27Thu4:189.44:488.610:101.310:261.56:564:36First Quarter27Thu
28Fri5:129.25:468.311:081.411:211.76:554:37First Quarter28Fri
29Sat6:089.26:448.312:051.36:544:38Waxing Gibbous29Sat
30Sun7:029.37:388.512:171.712:591.06:534:40Waxing Gibbous30Sun
31Mon7:529.68:278.81:091.51:480.76:524:41Waxing Gibbous31Mon
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 12:29 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 36% 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 (36% 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