Tides Today & Tomorrow in Castine, ME

TIDE TIMES for Sunday, August 9, 2026
The tide is currently rising in Castine, ME.
Next low tide (tomorrow) : 3:03 am (-0.2 ft)
Next high tide : in 4h 26m at 8:32 pm (11.3 ft)
Sunset today : 7:49 pm
Sunrise tomorrow : 5:31 am
Moon phase : Waning Crescent (13% illuminated)
Tide Station Location : Station #8414672
Common Questions About Tides

Castine, ME Tides - May 1947

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:5310.59:2510.62:390.63:080.05:267:38Waxing Gibbous1Thu
2Fri9:4910.610:1411.03:360.13:590.05:257:39Waxing Gibbous2Fri
3Sat10:4010.710:5811.24:27-0.34:450.05:237:40Full Moon3Sat
4Sun11:2610.711:3911.35:14-0.55:280.25:227:41Full Moon4Sun
5Mon12:0910.55:57-0.56:090.55:207:42Full Moon5Mon
6Tue12:1811.212:5010.36:38-0.46:480.85:197:44Full Moon6Tue
7Wed12:5611.01:3110.07:17-0.27:271.25:187:45Waning Gibbous7Wed
8Thu1:3410.72:119.67:570.18:061.65:167:46Waning Gibbous8Thu
9Fri2:1410.42:529.38:380.58:471.95:157:47Waning Gibbous9Fri
10Sat2:5610.03:379.09:200.99:322.25:147:48Waning Gibbous10Sat
11Sun3:419.74:248.810:061.210:202.45:137:49Third Quarter11Sun
12Mon4:309.45:158.710:551.411:132.55:117:51Third Quarter12Mon
13Tue5:249.36:088.811:471.55:107:52Third Quarter13Tue
14Wed6:209.27:019.012:092.412:401.45:097:53Third Quarter14Wed
15Thu7:169.37:519.41:052.01:311.25:087:54Waning Crescent15Thu
16Fri8:109.68:3810.01:591.62:201.05:077:55Waning Crescent16Fri
17Sat9:019.99:2410.62:500.93:070.75:067:56Waning Crescent17Sat
18Sun9:5110.310:0811.33:380.23:530.45:057:57Waning Crescent18Sun
19Mon10:3910.610:5211.84:26-0.44:380.15:047:58New Moon19Mon
20Tue11:2710.811:3812.25:13-1.05:240.05:037:59New Moon20Tue
21Wed12:1611.06:01-1.36:130.05:028:01New Moon21Wed
22Thu12:2612.31:0710.96:52-1.57:040.25:018:02Waxing Crescent22Thu
23Fri1:1712.32:0110.87:44-1.47:580.45:008:03Waxing Crescent23Fri
24Sat2:1212.02:5810.58:40-1.18:560.64:598:04Waxing Crescent24Sat
25Sun3:1011.63:5810.39:39-0.79:590.94:588:05First Quarter25Sun
26Mon4:1311.25:0210.210:41-0.311:061.04:578:06First Quarter26Mon
27Tue5:2010.76:0610.111:440.04:578:07First Quarter27Tue
28Wed6:2710.47:0910.312:141.012:470.24:568:08First Quarter28Wed
29Thu7:3310.28:0710.51:190.81:460.44:558:08Waxing Gibbous29Thu
30Fri8:3410.19:0010.72:210.52:420.54:558:09Waxing Gibbous30Fri
31Sat9:3010.19:4910.93:170.23:330.64:548:10Waxing Gibbous31Sat
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 11:47 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 spring phase. Tonight's moon is 13% 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 Waning Crescent (13% 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