Tides Today & Tomorrow in Castine, ME

TIDE TIMES for Thursday, August 20, 2026
The tide is currently rising in Castine, ME.
Next low tide (tomorrow) : 12:12 am (1.5 ft)
Next high tide : in 3h 41m at 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 - Dec 1927

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:279.43:4010.19:271.610:040.56:503:57First Quarter1Thu
2Fri4:249.64:4210.110:281.411:030.46:513:57First Quarter2Fri
3Sat5:2410.05:4710.211:331.06:523:57First Quarter3Sat
4Sun6:2410.56:5010.412:020.212:370.46:533:56Waxing Gibbous4Sun
5Mon7:2111.17:5110.71:01-0.11:38-0.46:543:56Waxing Gibbous5Mon
6Tue8:1611.88:4911.01:57-0.42:36-1.06:553:56Waxing Gibbous6Tue
7Wed9:0812.39:4411.22:52-0.63:30-1.66:563:56Full Moon7Wed
8Thu9:5912.610:3711.33:44-0.74:23-1.96:573:56Full Moon8Thu
9Fri10:5012.611:2911.24:36-0.65:14-1.96:583:55Full Moon9Fri
10Sat11:4012.55:27-0.46:06-1.76:593:55Waning Gibbous10Sat
11Sun12:2010.912:3112.16:190.06:57-1.27:003:55Waning Gibbous11Sun
12Mon1:1210.61:2411.57:110.47:50-0.77:013:55Waning Gibbous12Mon
13Tue2:0510.22:1810.98:060.88:43-0.17:023:56Waning Gibbous13Tue
14Wed3:009.83:1410.39:021.39:370.47:033:56Third Quarter14Wed
15Thu3:569.54:129.710:001.610:320.97:033:56Third Quarter15Thu
16Fri4:529.45:119.311:001.711:271.27:043:56Third Quarter16Fri
17Sat5:479.36:109.111:591.77:053:56Third Quarter17Sat
18Sun6:409.57:059.012:201.412:541.57:063:57Waning Crescent18Sun
19Mon7:299.77:579.01:111.41:461.27:063:57Waning Crescent19Mon
20Tue8:149.98:449.11:581.42:330.97:073:57Waning Crescent20Tue
21Wed8:5510.29:279.32:421.43:160.57:073:58Waning Crescent21Wed
22Thu9:3510.410:089.43:231.33:560.37:083:58New Moon22Thu
23Fri10:1210.610:469.54:011.34:350.17:083:59New Moon23Fri
24Sat10:5010.811:249.64:391.25:120.07:093:59New Moon24Sat
25Sun11:2710.95:171.25:51-0.17:094:00New Moon25Sun
26Mon12:039.712:0711.05:561.16:30-0.27:104:01Waxing Crescent26Mon
27Tue12:439.712:4910.96:371.17:12-0.27:104:01Waxing Crescent27Tue
28Wed1:269.81:3510.97:231.07:58-0.27:104:02Waxing Crescent28Wed
29Thu2:139.92:2510.78:131.08:46-0.17:104:03Waxing Crescent29Thu
30Fri3:0410.03:2010.49:080.99:390.07:114:03First Quarter30Fri
31Sat3:5910.24:2110.210:080.810:330.17:114:04First 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 8:58 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