Tides Today & Tomorrow in Castine, ME

TIDE TIMES for Monday, August 17, 2026
The tide is currently falling in Castine, ME.
Next low tide : in 1h 49m at 8:59 am (0.2 ft)
Next high tide : 3:13 pm (10.8 ft)
Sunset today : 7:37 pm
Sunrise tomorrow : 5:40 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8414672
Common Questions About Tides

Castine, ME Tides - Mar 1935

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:5610.57:409.412:341.31:240.16:135:21Waning Crescent1Fri
2Sat8:0011.08:3910.21:400.72:24-0.66:115:23Waning Crescent2Sat
3Sun8:5811.79:3211.02:41-0.13:18-1.26:105:24New Moon3Sun
4Mon9:5312.110:2311.63:37-0.84:09-1.66:085:25New Moon4Mon
5Tue10:4512.411:1112.14:30-1.44:58-1.86:065:27New Moon5Tue
6Wed11:3612.311:5912.35:22-1.85:46-1.76:045:28Waxing Crescent6Wed
7Thu12:2612.06:13-1.86:34-1.36:035:29Waxing Crescent7Thu
8Fri12:4812.21:1811.47:04-1.67:24-0.76:015:31Waxing Crescent8Fri
9Sat1:3711.82:1110.77:57-1.18:150.05:595:32Waxing Crescent9Sat
10Sun2:2911.23:0710.08:53-0.59:100.75:575:33First Quarter10Sun
11Mon3:2510.64:089.39:520.210:091.45:555:34First Quarter11Mon
12Tue4:2610.05:128.810:550.811:131.85:545:36First Quarter12Tue
13Wed5:329.66:188.612:001.15:525:37First Quarter13Wed
14Thu6:379.57:198.612:191.91:021.15:505:38Waxing Gibbous14Thu
15Fri7:369.58:138.91:201.81:581.05:485:40Waxing Gibbous15Fri
16Sat8:289.78:599.22:141.52:460.85:465:41Waxing Gibbous16Sat
17Sun9:1410.09:399.63:011.13:280.65:455:42Waxing Gibbous17Sun
18Mon9:5410.110:159.93:430.84:050.55:435:43Full Moon18Mon
19Tue10:3110.210:4810.24:210.54:390.45:415:45Full Moon19Tue
20Wed11:0610.211:2010.44:560.35:110.55:395:46Full Moon20Wed
21Thu11:4010.211:5110.55:300.25:430.65:375:47Full Moon21Thu
22Fri12:1410.06:040.26:140.75:355:48Waning Gibbous22Fri
23Sat12:2410.512:509.86:390.26:490.95:335:50Waning Gibbous23Sat
24Sun1:0010.51:299.67:170.27:271.15:325:51Waning Gibbous24Sun
25Mon1:3910.52:129.47:590.38:101.35:305:52Waning Gibbous25Mon
26Tue2:2510.33:039.18:480.59:011.55:285:53Third Quarter26Tue
27Wed3:1810.24:019.09:450.610:001.65:265:55Third Quarter27Wed
28Thu4:2010.15:069.010:480.611:071.55:245:56Third Quarter28Thu
29Fri5:2810.26:149.311:550.45:225:57Waning Crescent29Fri
30Sat6:3610.57:189.912:171.11:000.05:215:58Waning Crescent30Sat
31Sun7:4110.98:1610.71:240.42:00-0.45:195:59Waning Crescent31Sun
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 12:06 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 transitional phase. Tonight's moon is 27% 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 Crescent (27% 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