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 2h 19m at 9:29 pm (0.4 ft)
Next high tide (tomorrow) : 3:40 am (10.1 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 - Feb 1934

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu11:5410.65:440.86:090.16:544:43Full Moon1Thu
2Fri12:199.912:2910.56:190.76:420.16:524:45Waning Gibbous2Fri
3Sat12:5310.11:0510.36:550.77:150.26:514:46Waning Gibbous3Sat
4Sun1:2810.21:4410.17:350.67:520.46:504:47Waning Gibbous4Sun
5Mon2:0710.32:289.78:180.68:340.76:494:49Third Quarter5Mon
6Tue2:5110.33:189.49:070.69:220.96:484:50Third Quarter6Tue
7Wed3:4210.34:169.010:040.610:171.26:464:52Third Quarter7Wed
8Thu4:4010.35:238.911:080.611:221.36:454:53Third Quarter8Thu
9Fri5:4610.46:338.912:170.46:444:54Waning Crescent9Fri
10Sat6:5410.67:429.312:311.21:260.06:424:56Waning Crescent10Sat
11Sun8:0111.18:449.91:400.82:29-0.66:414:57Waning Crescent11Sun
12Mon9:0111.79:4110.52:430.23:27-1.16:394:59New Moon12Mon
13Tue9:5812.110:3311.13:41-0.44:19-1.56:385:00New Moon13Tue
14Wed10:5012.311:2211.44:36-0.95:09-1.76:375:01New Moon14Wed
15Thu11:4112.25:27-1.15:57-1.66:355:03Waxing Crescent15Thu
16Fri12:1011.612:3111.96:18-1.26:43-1.36:345:04Waxing Crescent16Fri
17Sat12:5611.61:2011.37:08-0.97:30-0.76:325:06Waxing Crescent17Sat
18Sun1:4311.32:1010.67:58-0.58:170.06:315:07Waxing Crescent18Sun
19Mon2:3110.83:029.98:500.09:060.86:295:08First Quarter19Mon
20Tue3:2210.33:589.19:440.59:591.46:275:10First Quarter20Tue
21Wed4:169.84:578.610:431.010:571.96:265:11First Quarter21Wed
22Thu5:159.46:018.311:441.311:582.26:245:12First Quarter22Thu
23Fri6:179.27:028.212:461.46:235:14Waxing Gibbous23Fri
24Sat7:179.37:588.412:592.21:431.36:215:15Waxing Gibbous24Sat
25Sun8:119.58:478.71:541.92:341.06:195:16Waxing Gibbous25Sun
26Mon8:589.99:299.12:431.63:180.76:185:18Waxing Gibbous26Mon
27Tue9:3910.210:079.53:271.23:560.46:165:19Full Moon27Tue
28Wed10:1710.410:419.94:060.94:320.26:145:20Full Moon28Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8414672)

Common Questions About Castine, ME Tides

Show All
What time does the tide turn (slack tide) in Castine, ME today?

Slack tide in Castine, ME is approximately 12:34 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 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