Tides Today & Tomorrow in Castine, ME

TIDE TIMES for Thursday, August 20, 2026
The tide is currently rising in Castine, ME.
Next low tide : 11:28 am (2.0 ft)
Next high tide : in 2h 18m at 5:28 am (8.9 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 - Apr 1929

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:299.44:138.49:551.410:102.45:166:01Third Quarter1Mon
2Tue4:249.15:118.210:521.711:082.65:146:03Third Quarter2Tue
3Wed5:249.06:118.211:511.75:126:04Third Quarter3Wed
4Thu6:249.17:078.512:092.512:491.55:116:05Waning Crescent4Thu
5Fri7:209.47:578.91:062.11:411.25:096:06Waning Crescent5Fri
6Sat8:119.88:429.51:581.62:270.75:076:07Waning Crescent6Sat
7Sun8:5710.39:2310.22:451.03:100.35:056:09Waning Crescent7Sun
8Mon9:4110.710:0210.83:280.33:50-0.15:036:10New Moon8Mon
9Tue10:2311.010:4111.34:11-0.34:30-0.45:026:11New Moon9Tue
10Wed11:0611.211:2211.74:53-0.85:10-0.55:006:12New Moon10Wed
11Thu11:5111.25:38-1.15:53-0.44:586:14Waxing Crescent11Thu
12Fri12:0511.912:3811.06:24-1.36:38-0.14:566:15Waxing Crescent12Fri
13Sat12:5111.91:2910.77:14-1.17:280.24:556:16Waxing Crescent13Sat
14Sun1:4211.62:2410.28:08-0.88:230.74:536:17Waxing Crescent14Sun
15Mon2:3811.23:259.89:07-0.49:251.14:516:18First Quarter15Mon
16Tue3:4210.74:339.510:130.010:351.44:496:20First Quarter16Tue
17Wed4:5210.45:449.411:220.311:471.44:486:21First Quarter17Wed
18Thu6:0410.26:519.612:310.34:466:22Waxing Gibbous18Thu
19Fri7:1310.37:5210.012:571.11:330.24:446:23Waxing Gibbous19Fri
20Sat8:1410.58:4510.41:590.62:290.04:436:25Waxing Gibbous20Sat
21Sun9:0810.79:3210.82:540.23:18-0.14:416:26Waxing Gibbous21Sun
22Mon9:5610.710:1511.03:44-0.24:030.04:396:27Full Moon22Mon
23Tue10:4110.710:5411.14:29-0.44:440.24:386:28Full Moon23Tue
24Wed11:2210.511:3211.05:10-0.45:230.54:366:29Full Moon24Wed
25Thu12:0210.25:50-0.36:000.84:356:31Full Moon25Thu
26Fri12:0810.812:419.96:28-0.16:381.24:336:32Waning Gibbous26Fri
27Sat12:4510.61:219.57:070.37:161.64:316:33Waning Gibbous27Sat
28Sun1:2410.23:029.28:470.68:572.05:307:34Waning Gibbous28Sun
29Mon3:069.93:468.99:301.09:412.35:287:36Waning Gibbous29Mon
30Tue3:529.64:358.610:171.310:312.55:277:37Third Quarter30Tue
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 8:28 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 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