Tides Today & Tomorrow in Belfast, ME

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently falling in Belfast, ME.
Next low tide : in 2h 32m at 10:14 pm (0.8 ft)
Next high tide (tomorrow) : 4:26 am (9.6 ft)
Sunset today : 7:36 pm
Sunrise tomorrow : 5:42 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8415191
Common Questions About Tides

Belfast, ME Tides - Jun 1932

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:579.410:0510.53:440.93:511.74:548:13Waning Crescent1Wed
2Thu10:409.510:4310.64:270.74:311.84:538:13New Moon2Thu
3Fri11:209.511:2010.75:060.55:091.84:538:14New Moon3Fri
4Sat11:589.511:5710.85:440.45:471.84:528:15New Moon4Sat
5Sun12:369.56:220.46:241.94:528:16New Moon5Sun
6Mon12:3510.81:149.67:000.47:031.94:528:16Waxing Crescent6Mon
7Tue1:1410.81:539.67:390.47:431.84:518:17Waxing Crescent7Tue
8Wed1:5510.82:359.78:200.48:281.84:518:18Waxing Crescent8Wed
9Thu2:4010.83:219.89:030.39:161.64:518:18Waxing Crescent9Thu
10Fri3:2810.74:0910.09:500.310:091.44:518:19First Quarter10Fri
11Sat4:2110.65:0110.310:400.311:061.24:508:20First Quarter11Sat
12Sun5:1910.45:5510.711:330.34:508:20First Quarter12Sun
13Mon6:2010.36:5211.112:070.812:280.44:508:21Waxing Gibbous13Mon
14Tue7:2210.37:4811.61:090.31:260.44:508:21Waxing Gibbous14Tue
15Wed8:2510.48:4512.02:10-0.22:240.44:508:22Waxing Gibbous15Wed
16Thu9:2510.69:4112.33:10-0.73:210.34:508:22Waxing Gibbous16Thu
17Fri10:2310.710:3512.54:07-1.14:180.34:508:22Full Moon17Fri
18Sat11:1910.811:2912.55:03-1.35:130.34:508:23Full Moon18Sat
19Sun12:1310.85:56-1.36:080.44:508:23Full Moon19Sun
20Mon12:2212.41:0610.76:49-1.17:020.64:518:23Waning Gibbous20Mon
21Tue1:1512.11:5810.67:41-0.87:550.84:518:24Waning Gibbous21Tue
22Wed2:0811.62:5010.48:33-0.48:491.14:518:24Waning Gibbous22Wed
23Thu3:0111.13:4210.29:230.19:441.44:518:24Waning Gibbous23Thu
24Fri3:5510.54:3310.010:130.610:391.64:528:24Third Quarter24Fri
25Sat4:4910.05:249.911:031.111:351.74:528:24Third Quarter25Sat
26Sun5:449.56:159.911:531.54:528:24Third Quarter26Sun
27Mon6:419.17:059.912:301.712:441.84:538:24Third Quarter27Mon
28Tue7:368.97:549.91:251.61:342.14:538:24Waning Crescent28Tue
29Wed8:308.98:4210.12:181.52:242.24:548:24Waning Crescent29Wed
30Thu9:218.99:2710.33:071.23:112.24:548:24Waning Crescent30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8415191)

Common Questions About Belfast, ME Tides

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

Slack tide in Belfast, ME is approximately 1:20 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 Belfast, ME?

Belfast, 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 Belfast, 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 Belfast, ME?

Tide predictions for Belfast, 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 Belfast, ME?

Tide data for Belfast, ME is sourced from NOAA Station #8415191. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8415191.

What is the moon phase in Belfast, ME tonight?

Tonight the moon over Belfast, ME is First Quarter (36% illuminated). This places Belfast, 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