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 2h 02m 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 - Jun 1928

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:469.610:5410.54:350.54:431.44:538:12Full Moon1Fri
2Sat11:269.611:3010.65:150.45:201.54:538:12Full Moon2Sat
3Sun12:049.55:520.35:571.64:528:13Full Moon3Sun
4Mon12:0610.612:419.56:290.36:331.74:528:14Full Moon4Mon
5Tue12:4110.61:199.47:050.47:101.84:518:15Waning Gibbous5Tue
6Wed1:1810.51:569.47:430.47:481.94:518:15Waning Gibbous6Wed
7Thu1:5710.52:369.48:220.58:291.94:518:16Waning Gibbous7Thu
8Fri2:3910.43:199.49:030.59:141.94:508:17Waning Gibbous8Fri
9Sat3:2510.34:069.59:480.510:041.74:508:17Third Quarter9Sat
10Sun4:1510.24:569.710:370.510:591.54:508:18Third Quarter10Sun
11Mon5:1010.25:5010.111:290.411:581.24:508:19Third Quarter11Mon
12Tue6:0910.26:4610.512:240.44:508:19Third Quarter12Tue
13Wed7:1110.27:4211.012:590.71:200.34:498:20Waning Crescent13Wed
14Thu8:1210.48:3711.62:000.12:170.14:498:20Waning Crescent14Thu
15Fri9:1210.69:3212.12:59-0.53:130.04:498:21Waning Crescent15Fri
16Sat10:1010.810:2612.43:56-1.14:09-0.14:498:21New Moon16Sat
17Sun11:0611.011:1912.64:52-1.55:04-0.14:498:21New Moon17Sun
18Mon12:0111.05:46-1.75:58-0.14:508:22New Moon18Mon
19Tue12:1312.612:5511.06:40-1.66:530.14:508:22Waxing Crescent19Tue
20Wed1:0712.31:5010.87:34-1.37:480.44:508:22Waxing Crescent20Wed
21Thu2:0111.92:4410.68:28-0.98:450.74:508:22Waxing Crescent21Thu
22Fri2:5711.43:4010.39:22-0.49:421.04:508:23Waxing Crescent22Fri
23Sat3:5310.84:3510.110:160.110:401.34:518:23First Quarter23Sat
24Sun4:5110.35:309.911:100.611:391.44:518:23First Quarter24Sun
25Mon5:499.86:259.812:041.04:518:23First Quarter25Mon
26Tue6:489.47:179.812:371.512:571.34:528:23First Quarter26Tue
27Wed7:459.18:079.91:341.41:481.64:528:23Waxing Gibbous27Wed
28Thu8:399.08:5410.12:271.22:381.74:528:23Waxing Gibbous28Thu
29Fri9:299.09:3910.23:171.03:241.84:538:23Waxing Gibbous29Fri
30Sat10:159.110:2110.44:030.84:081.84:538:23Waxing Gibbous30Sat
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