Tides Today & Tomorrow in Castine, ME

TIDE TIMES for Sunday, August 16, 2026
The tide is currently falling in Castine, ME.
Next low tide : in 2h 22m at 8:13 am (-0.3 ft)
Next high tide : 2:27 pm (11.1 ft)
Sunset today : 7:39 pm
Sunrise tomorrow : 5:39 am
Moon phase : Waxing Crescent (18% illuminated)
Tide Station Location : Station #8414672
Common Questions About Tides

Castine, ME Tides - May 1937

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:0610.03:439.19:280.89:411.95:257:38Waning Gibbous1Sat
2Sun3:529.84:309.110:131.010:301.95:247:39Third Quarter2Sun
3Mon4:429.75:229.211:031.011:241.85:237:40Third Quarter3Mon
4Tue5:379.76:169.511:560.95:217:42Third Quarter4Tue
5Wed6:369.87:119.912:231.512:510.85:207:43Waning Crescent5Wed
6Thu7:3510.08:0510.51:221.01:460.55:187:44Waning Crescent6Thu
7Fri8:3410.38:5811.22:200.32:400.15:177:45Waning Crescent7Fri
8Sat9:3010.89:5011.93:16-0.43:33-0.25:167:46Waning Crescent8Sat
9Sun10:2411.110:4112.44:09-1.14:25-0.55:147:48New Moon9Sun
10Mon11:1711.411:3212.75:02-1.75:17-0.65:137:49New Moon10Mon
11Tue12:1011.55:55-2.06:09-0.65:127:50New Moon11Tue
12Wed12:2412.81:0411.46:48-2.07:03-0.55:117:51Waxing Crescent12Wed
13Thu1:1712.61:5911.27:43-1.87:59-0.25:107:52Waxing Crescent13Thu
14Fri2:1312.32:5610.98:39-1.38:580.25:087:53Waxing Crescent14Fri
15Sat3:1111.73:5510.69:37-0.89:590.55:077:54First Quarter15Sat
16Sun4:1311.14:5610.410:36-0.311:030.85:067:56First Quarter16Sun
17Mon5:1610.65:5810.211:370.15:057:57First Quarter17Mon
18Tue6:2110.16:5810.212:071.012:370.55:047:58First Quarter18Tue
19Wed7:239.87:5410.21:100.91:340.85:037:59Waxing Gibbous19Wed
20Thu8:229.78:4610.42:090.82:280.95:028:00Waxing Gibbous20Thu
21Fri9:169.79:3310.53:030.63:171.05:018:01Waxing Gibbous21Fri
22Sat10:049.710:1510.63:520.44:021.15:008:02Waxing Gibbous22Sat
23Sun10:489.710:5510.74:360.24:441.25:008:03Full Moon23Sun
24Mon11:289.711:3310.75:160.25:231.34:598:04Full Moon24Mon
25Tue12:069.75:540.26:001.44:588:05Full Moon25Tue
26Wed12:0910.712:439.66:310.26:371.54:578:06Full Moon26Wed
27Thu12:4510.71:209.67:070.37:131.64:568:07Waning Gibbous27Thu
28Fri1:2210.61:579.67:440.47:511.64:568:08Waning Gibbous28Fri
29Sat2:0010.52:359.68:210.58:311.74:558:09Waning Gibbous29Sat
30Sun2:4010.43:169.69:010.59:141.74:548:10Waning Gibbous30Sun
31Mon3:2310.24:009.79:430.610:021.64:548:11Third Quarter31Mon
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 11:20 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 spring phase. Tonight's moon is 18% 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 maximum.

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 (18% illuminated). This places Castine, ME in a spring tide cycle, so tidal ranges are near their weekly maximum 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