Tides Today & Tomorrow in Castine, ME

TIDE TIMES for Thursday, August 20, 2026
The tide is currently falling in Castine, ME.
Next low tide : in 4h 47m at 11:28 am (2.0 ft)
Next high tide : 5:45 pm (9.7 ft)
Sunset today : 7:32 pm
Sunrise tomorrow : 5:44 am
Moon phase : First Quarter (55% illuminated)
Tide Station Location : Station #8414672
Common Questions About Tides

Castine, ME Tides - Nov 1928

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:4911.21:0312.36:49-0.27:29-1.36:124:25Waning Gibbous1Thu
2Fri1:4510.72:0011.87:450.38:28-0.86:134:23Waning Gibbous2Fri
3Sat2:4610.33:0211.28:460.89:32-0.36:154:22Third Quarter3Sat
4Sun3:519.94:0910.79:531.210:380.16:164:21Third Quarter4Sun
5Mon4:599.75:1910.311:031.311:440.46:174:19Third Quarter5Mon
6Tue6:059.76:2610.212:111.26:194:18Waning Crescent6Tue
7Wed7:069.97:2810.212:460.41:140.96:204:17Waning Crescent7Wed
8Thu8:0010.28:2310.21:420.42:100.66:214:16Waning Crescent8Thu
9Fri8:4810.59:1110.22:320.42:590.36:234:14Waning Crescent9Fri
10Sat9:3010.79:5510.23:170.53:440.16:244:13New Moon10Sat
11Sun10:0810.810:3510.13:570.64:240.06:254:12New Moon11Sun
12Mon10:4410.811:139.94:340.85:020.06:274:11New Moon12Mon
13Tue11:1810.711:509.75:101.15:380.26:284:10New Moon13Tue
14Wed11:5310.65:451.36:140.46:294:09Waxing Crescent14Wed
15Thu12:269.512:2910.46:201.66:510.66:314:08Waxing Crescent15Thu
16Fri1:049.21:0610.16:571.97:300.86:324:07Waxing Crescent16Fri
17Sat1:449.01:479.97:372.18:121.06:334:06Waxing Crescent17Sat
18Sun2:288.82:339.78:212.38:581.26:354:05First Quarter18Sun
19Mon3:158.73:239.59:112.39:481.26:364:04First Quarter19Mon
20Tue4:088.84:199.510:062.210:421.16:374:04First Quarter20Tue
21Wed5:029.05:179.611:051.911:370.96:394:03First Quarter21Wed
22Thu5:589.56:179.812:041.46:404:02Waxing Gibbous22Thu
23Fri6:5110.17:1510.212:310.61:020.76:414:01Waxing Gibbous23Fri
24Sat7:4210.98:1010.61:240.21:57-0.16:424:01Waxing Gibbous24Sat
25Sun8:3211.69:0311.02:15-0.22:50-0.96:444:00Waxing Gibbous25Sun
26Mon9:2112.39:5511.33:05-0.53:42-1.56:453:59Full Moon26Mon
27Tue10:1012.710:4711.43:55-0.74:33-1.96:463:59Full Moon27Tue
28Wed11:0112.811:4011.34:46-0.75:25-2.06:473:58Full Moon28Wed
29Thu11:5212.75:38-0.56:19-1.96:483:58Waning Gibbous29Thu
30Fri12:3411.112:4712.46:32-0.27:14-1.56:503:57Waning Gibbous30Fri
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 2:36 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 55% 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 (55% 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