Tides Today & Tomorrow in Castine, ME

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently falling in Castine, ME.
Next low tide : in 2h 42m at 10:35 am (1.5 ft)
Next high tide : 4:51 pm (10.0 ft)
Sunset today : 7:34 pm
Sunrise tomorrow : 5:43 am
Moon phase : First Quarter (46% illuminated)
Tide Station Location : Station #8414672
Common Questions About Tides

Castine, ME Tides - Apr 1931

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:2011.79:4811.63:05-0.53:34-1.25:176:01Full Moon1Wed
2Thu10:1312.010:3712.13:58-1.34:23-1.45:156:02Full Moon2Thu
3Fri11:0412.111:2412.44:50-1.75:11-1.35:136:03Full Moon3Fri
4Sat11:5411.85:40-1.95:59-1.05:116:04Waning Gibbous4Sat
5Sun12:1112.412:4511.46:30-1.86:48-0.55:106:06Waning Gibbous5Sun
6Mon1:0012.01:3710.87:22-1.37:380.25:086:07Waning Gibbous6Mon
7Tue1:5111.52:3210.18:16-0.78:320.95:066:08Waning Gibbous7Tue
8Wed2:4510.83:309.49:120.09:301.55:046:09Third Quarter8Wed
9Thu3:4410.14:338.910:130.710:332.05:026:10Third Quarter9Thu
10Fri4:489.65:388.711:171.111:392.15:016:12Third Quarter10Fri
11Sat5:559.46:418.712:211.34:596:13Third Quarter11Sat
12Sun6:579.37:378.912:422.01:181.34:576:14Waning Crescent12Sun
13Mon7:539.58:259.21:391.82:091.14:556:15Waning Crescent13Mon
14Tue8:419.79:069.62:291.42:531.04:546:17Waning Crescent14Tue
15Wed9:249.89:439.93:131.03:320.94:526:18Waning Crescent15Wed
16Thu10:039.910:1810.23:530.74:070.84:506:19New Moon16Thu
17Fri10:4010.010:5010.44:300.44:410.94:486:20New Moon17Fri
18Sat11:159.911:2210.55:040.35:131.04:476:22New Moon18Sat
19Sun11:509.811:5510.65:390.25:461.14:456:23New Moon19Sun
20Mon12:269.76:140.26:201.34:436:24Waxing Crescent20Mon
21Tue12:3010.61:049.56:510.26:581.54:426:25Waxing Crescent21Tue
22Wed1:0910.51:479.37:330.37:411.64:406:26Waxing Crescent22Wed
23Thu1:5410.42:369.18:200.58:301.84:396:28Waxing Crescent23Thu
24Fri2:4510.33:319.09:140.69:271.84:376:29First Quarter24Fri
25Sat3:4410.14:339.110:140.610:321.74:356:30First Quarter25Sat
26Sun5:5010.16:389.412:170.55:347:31First Quarter26Sun
27Mon6:5810.37:419.912:411.41:210.35:327:33Waxing Gibbous27Mon
28Tue8:0310.68:3910.61:480.82:21-0.15:317:34Waxing Gibbous28Tue
29Wed9:0510.99:3311.32:500.03:16-0.45:297:35Waxing Gibbous29Wed
30Thu10:0111.210:2411.93:47-0.74:09-0.75:287:36Full Moon30Thu
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 1:43 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 Castine, ME?

Castine, ME is currently in a neap phase. Tonight's moon is 46% 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 near their weekly minimum.

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 First Quarter (46% illuminated). This places Castine, ME in a neap tide cycle, so tidal ranges are near their weekly minimum 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