Tides Today & Tomorrow in Castine, ME

TIDE TIMES for Saturday, August 22, 2026
The tide is currently falling in Castine, ME.
Next low tide (tomorrow) : in 3h 35m at 2:08 am (1.5 ft)
Next high tide (tomorrow) : 8:24 am (8.4 ft)
Sunset today : 7:29 pm
Sunrise tomorrow : 5:46 am
Moon phase : Waxing Gibbous (73% illuminated)
Tide Station Location : Station #8414672
Common Questions About Tides

Castine, ME Tides - Jan 1923

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon9:2310.79:569.83:101.03:45-0.17:114:05Full Moon1Mon
2Tue10:0411.110:3710.13:510.74:26-0.57:114:06Full Moon2Tue
3Wed10:4511.411:1810.44:330.55:07-0.87:114:07Full Moon3Wed
4Thu11:2711.75:150.25:48-1.07:114:08Full Moon4Thu
5Fri12:0110.612:1211.85:590.06:32-1.17:114:09Waning Gibbous5Fri
6Sat12:4610.812:5811.76:46-0.17:18-1.17:114:10Waning Gibbous6Sat
7Sun1:3310.91:4911.57:36-0.18:08-0.97:114:11Waning Gibbous7Sun
8Mon2:2410.92:4311.18:310.09:00-0.67:104:12Third Quarter8Mon
9Tue3:1910.93:4210.79:300.19:57-0.37:104:13Third Quarter9Tue
10Wed4:1710.84:4610.310:330.110:580.07:104:14Third Quarter10Wed
11Thu5:1910.95:5310.011:400.07:104:15Third Quarter11Thu
12Fri6:2311.07:0010.012:020.212:46-0.27:094:17Waning Crescent12Fri
13Sat7:2511.18:0310.11:050.21:49-0.57:094:18Waning Crescent13Sat
14Sun8:2311.49:0110.32:060.22:47-0.87:084:19Waning Crescent14Sun
15Mon9:1711.69:5410.43:020.03:40-1.07:084:20New Moon15Mon
16Tue10:0711.710:4210.53:54-0.14:29-1.17:074:21New Moon16Tue
17Wed10:5411.611:2710.54:42-0.15:15-1.07:074:23New Moon17Wed
18Thu11:3911.55:280.05:58-0.87:064:24New Moon18Thu
19Fri12:1010.512:2111.26:110.26:40-0.57:064:25Waxing Crescent19Fri
20Sat12:5210.31:0310.86:540.57:20-0.17:054:27Waxing Crescent20Sat
21Sun1:3310.11:4510.37:370.88:010.37:044:28Waxing Crescent21Sun
22Mon2:149.92:299.98:211.18:420.77:034:29Waxing Crescent22Mon
23Tue2:579.63:159.49:061.39:261.17:034:30First Quarter23Tue
24Wed3:439.44:059.09:561.510:131.47:024:32First Quarter24Wed
25Thu4:329.34:598.710:491.611:041.77:014:33First Quarter25Thu
26Fri5:249.35:568.511:451.611:581.87:004:35First Quarter26Fri
27Sat6:189.46:538.612:411.36:594:36Waxing Gibbous27Sat
28Sun7:129.77:488.912:531.71:351.06:584:37Waxing Gibbous28Sun
29Mon8:0210.18:389.31:451.42:250.46:574:39Waxing Gibbous29Mon
30Tue8:5010.79:249.82:351.03:12-0.16:564:40Waxing Gibbous30Tue
31Wed9:3611.210:0910.33:220.53:57-0.76:554:41Full Moon31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8414672)

Common Questions About Castine, ME Tides

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

Slack tide in Castine, ME is approximately 5:16 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 Castine, ME?

Castine, ME is currently in a transitional phase. Tonight's moon is 73% 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 Castine, 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 Castine, ME?

Tide predictions for Castine, 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 Castine, ME?

Tide data for Castine, ME is sourced from NOAA Station #8414672. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8414672.

What is the moon phase in Castine, ME tonight?

Tonight the moon over Castine, ME is Waxing Gibbous (73% illuminated). This places Castine, 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