Tides Today & Tomorrow in Castine, ME

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently falling in Castine, ME.
Next low tide : in 6h 01m at 11:55 pm (1.0 ft)
Next high tide (tomorrow) : 6:07 am (9.2 ft)
Sunset today : 8:12 pm
Sunrise tomorrow : 5:10 am
Moon phase : First Quarter (52% illuminated)
Tide Station Location : Station #8414672
Common Questions About Tides

Castine, ME Tides - Dec 1977

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:109.42:189.98:081.78:370.86:513:57Waning Gibbous1Thu
2Fri2:539.43:049.78:541.79:220.96:523:57Third Quarter2Fri
3Sat3:409.43:559.69:441.710:110.96:533:56Third Quarter3Sat
4Sun4:319.64:509.510:391.511:030.96:543:56Third Quarter4Sun
5Mon5:249.95:489.611:371.111:580.76:553:56Third Quarter5Mon
6Tue6:1910.36:489.912:350.66:563:56Waning Crescent6Tue
7Wed7:1310.97:4510.312:530.41:32-0.16:573:55Waning Crescent7Wed
8Thu8:0711.68:4110.71:480.02:27-0.86:583:55Waning Crescent8Thu
9Fri8:5912.29:3511.12:42-0.33:21-1.46:593:55New Moon9Fri
10Sat9:5112.610:2811.43:35-0.74:14-1.97:003:55New Moon10Sat
11Sun10:4312.911:2111.64:28-0.95:06-2.17:013:55New Moon11Sun
12Mon11:3612.95:22-0.95:59-2.17:023:55Waxing Crescent12Mon
13Tue12:1411.612:3012.76:16-0.86:53-1.97:023:56Waxing Crescent13Tue
14Wed1:0911.41:2612.27:13-0.57:49-1.47:033:56Waxing Crescent14Wed
15Thu2:0511.22:2411.68:12-0.28:46-0.97:043:56First Quarter15Thu
16Fri3:0410.93:2510.99:130.29:44-0.47:053:56First Quarter16Fri
17Sat4:0410.64:2910.310:160.510:440.27:053:57First Quarter17Sat
18Sun5:0510.45:339.911:200.611:440.57:063:57First Quarter18Sun
19Mon6:0510.36:369.612:230.67:073:57Waxing Gibbous19Mon
20Tue7:0210.37:359.512:420.81:220.57:073:58Waxing Gibbous20Tue
21Wed7:5510.48:289.51:370.92:150.37:083:58Waxing Gibbous21Wed
22Thu8:4310.59:159.62:271.03:030.27:083:59Waxing Gibbous22Thu
23Fri9:2610.69:589.73:130.93:470.07:093:59Full Moon23Fri
24Sat10:0610.710:389.73:550.94:27-0.17:094:00Full Moon24Sat
25Sun10:4410.811:159.84:340.95:04-0.17:094:00Full Moon25Sun
26Mon11:2010.811:519.85:111.05:400.07:104:01Full Moon26Mon
27Tue11:5610.75:471.06:150.17:104:02Waning Gibbous27Tue
28Wed12:269.812:3110.66:221.16:500.17:104:03Waning Gibbous28Wed
29Thu1:029.81:0810.46:591.17:260.27:104:03Waning Gibbous29Thu
30Fri1:399.81:4810.27:381.28:040.37:114:04Waning Gibbous30Fri
31Sat2:199.82:3110.08:211.28:460.57:114:05Third Quarter31Sat
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 3:01 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 52% 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 (52% 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