Tides Today & Tomorrow in Belfast, ME

TIDE TIMES for Friday, August 21, 2026
The tide is currently falling in Belfast, ME.
Next low tide : in 4h 03m at 12:17 pm (2.4 ft)
Next high tide : 6:36 pm (9.7 ft)
Sunset today : 7:31 pm
Sunrise tomorrow : 5:46 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8415191
Common Questions About Tides

Belfast, ME Tides - Jan 1926

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:059.912:1010.96:001.26:310.17:124:06Waning Gibbous1Fri
2Sat12:439.812:4810.66:381.37:080.47:124:07Waning Gibbous2Sat
3Sun1:219.61:2710.47:161.57:460.67:124:08Waning Gibbous3Sun
4Mon2:009.52:0710.07:571.78:250.87:124:09Waning Gibbous4Mon
5Tue2:419.52:519.78:411.89:071.07:124:10Third Quarter5Tue
6Wed3:259.43:399.49:291.89:521.27:124:11Third Quarter6Wed
7Thu4:139.54:329.210:211.710:411.37:124:12Third Quarter7Thu
8Fri5:049.75:299.211:171.511:341.37:114:13Third Quarter8Fri
9Sat5:5710.06:299.312:151.17:114:14Waning Crescent9Sat
10Sun6:5210.57:279.612:301.11:130.57:114:15Waning Crescent10Sun
11Mon7:4611.18:2410.01:250.92:09-0.27:104:16Waning Crescent11Mon
12Tue8:3911.79:1710.52:200.53:02-0.97:104:18New Moon12Tue
13Wed9:3112.310:1010.93:140.03:55-1.57:104:19New Moon13Wed
14Thu10:2312.711:0111.34:06-0.44:46-1.97:094:20New Moon14Thu
15Fri11:1512.911:5311.54:59-0.75:38-2.17:094:21New Moon15Fri
16Sat12:0812.95:53-0.86:30-2.07:084:22Waxing Crescent16Sat
17Sun12:4511.61:0212.66:47-0.87:23-1.77:084:24Waxing Crescent17Sun
18Mon1:3911.51:5912.17:44-0.68:17-1.37:074:25Waxing Crescent18Mon
19Tue2:3511.32:5711.48:43-0.39:13-0.77:064:26First Quarter19Tue
20Wed3:3311.13:5910.79:450.010:12-0.17:064:28First Quarter20Wed
21Thu4:3310.95:0410.210:490.211:120.47:054:29First Quarter21Thu
22Fri5:3410.76:099.711:540.47:044:30First Quarter22Fri
23Sat6:3410.67:129.612:130.812:560.37:034:32Waxing Gibbous23Sat
24Sun7:3210.68:109.51:121.01:540.27:024:33Waxing Gibbous24Sun
25Mon8:2410.79:019.62:071.12:470.17:024:34Waxing Gibbous25Mon
26Tue9:1210.89:479.72:571.03:330.07:014:36Waxing Gibbous26Tue
27Wed9:5510.910:289.83:420.94:16-0.17:004:37Full Moon27Wed
28Thu10:3510.911:069.94:230.94:54-0.16:594:38Full Moon28Thu
29Fri11:1210.911:419.95:010.95:310.06:584:40Full Moon29Fri
30Sat11:4810.85:380.96:050.16:574:41Full Moon30Sat
31Sun12:169.912:2310.76:130.96:390.26:564:43Waning Gibbous31Sun
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 3:26 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 Belfast, ME?

Belfast, 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 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 (65% 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