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 1h 30m at 11:15 pm (1.2 ft)
Next high tide (tomorrow) : 5:28 am (8.9 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 - Nov 1929

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:3111.411:0010.74:190.04:48-0.66:124:25New Moon1Fri
2Sat11:1111.311:4210.45:000.35:30-0.56:134:24New Moon2Sat
3Sun11:5011.15:410.76:11-0.26:144:22Waxing Crescent3Sun
4Mon12:2410.012:2910.86:201.16:520.16:164:21Waxing Crescent4Mon
5Tue1:059.61:1010.47:011.67:340.66:174:20Waxing Crescent5Tue
6Wed1:499.21:5310.07:442.08:191.06:184:18Waxing Crescent6Wed
7Thu2:358.92:409.68:302.39:071.36:204:17First Quarter7Thu
8Fri3:248.63:329.39:202.59:591.56:214:16First Quarter8Fri
9Sat4:188.54:289.210:162.610:531.66:224:15First Quarter9Sat
10Sun5:138.65:259.111:132.511:461.56:244:14First Quarter10Sun
11Mon6:068.86:219.312:092.16:254:12Waxing Gibbous11Mon
12Tue6:569.37:139.512:371.31:021.66:264:11Waxing Gibbous12Tue
13Wed7:419.88:029.91:241.01:511.06:284:10Waxing Gibbous13Wed
14Thu8:2410.58:4810.22:080.62:370.36:294:09Waxing Gibbous14Thu
15Fri9:0611.19:3410.62:510.33:22-0.36:304:08Full Moon15Fri
16Sat9:4711.610:1910.83:330.14:06-0.96:324:07Full Moon16Sat
17Sun10:3112.011:0610.94:170.04:52-1.26:334:06Full Moon17Sun
18Mon11:1612.211:5410.85:020.05:40-1.46:344:05Waning Gibbous18Mon
19Tue12:0512.25:500.16:30-1.36:364:05Waning Gibbous19Tue
20Wed12:4510.612:5712.06:420.37:25-1.06:374:04Waning Gibbous20Wed
21Thu1:4110.31:5411.67:390.68:23-0.66:384:03Waning Gibbous21Thu
22Fri2:4110.12:5611.18:410.99:26-0.26:404:02Third Quarter22Fri
23Sat3:459.94:0310.69:481.110:310.16:414:01Third Quarter23Sat
24Sun4:529.85:1310.310:581.111:350.26:424:01Third Quarter24Sun
25Mon5:5710.06:2110.212:060.96:434:00Waning Crescent25Mon
26Tue6:5710.37:2410.112:370.31:100.56:454:00Waning Crescent26Tue
27Wed7:5210.78:2110.21:340.32:080.16:463:59Waning Crescent27Wed
28Thu8:4210.99:1210.22:250.42:59-0.26:473:58Waning Crescent28Thu
29Fri9:2711.19:5910.13:130.53:46-0.46:483:58New Moon29Fri
30Sat10:0811.110:4210.03:570.64:30-0.46:493:57New Moon30Sat
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 2:21 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 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