Tides Today & Tomorrow in Castine, ME

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently falling in Castine, ME.
Next low tide : in 5h 14m at 11:16 am (1.0 ft)
Next high tide : 5:35 pm (10.3 ft)
Sunset today : 8:12 pm
Sunrise tomorrow : 5:10 am
Moon phase : First Quarter (52% illuminated)
Tide Station Location : Station #8414672
Common Questions About Tides

Castine, ME Tides - Apr 1978

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:4210.75:279.811:080.011:340.85:166:01Third Quarter1Sat
2Sun5:5110.66:3510.012:160.05:146:03Waning Crescent2Sun
3Mon7:0010.77:3910.412:430.51:21-0.25:126:04Waning Crescent3Mon
4Tue8:0311.08:3610.81:480.12:20-0.55:106:05Waning Crescent4Tue
5Wed9:0011.29:2811.22:46-0.43:13-0.75:096:06Waning Crescent5Wed
6Thu9:5211.410:1511.53:39-0.84:02-0.85:076:08New Moon6Thu
7Fri10:4011.410:5911.64:28-1.04:48-0.75:056:09New Moon7Fri
8Sat11:2611.311:4211.55:13-1.15:31-0.55:036:10New Moon8Sat
9Sun12:0911.05:57-0.96:13-0.15:016:11Waxing Crescent9Sun
10Mon12:2311.312:5210.66:40-0.66:550.45:006:12Waxing Crescent10Mon
11Tue1:0410.91:3510.17:23-0.27:370.94:586:14Waxing Crescent11Tue
12Wed1:4610.52:209.78:060.38:211.34:566:15Waxing Crescent12Wed
13Thu2:3010.13:079.38:520.79:081.74:546:16First Quarter13Thu
14Fri3:189.73:579.09:411.19:592.04:536:17First Quarter14Fri
15Sat4:119.44:528.810:341.410:552.14:516:19First Quarter15Sat
16Sun5:079.25:478.811:291.511:522.04:496:20First Quarter16Sun
17Mon6:059.26:429.012:231.44:476:21Waxing Gibbous17Mon
18Tue7:009.47:329.412:481.81:151.24:466:22Waxing Gibbous18Tue
19Wed7:519.78:189.91:391.32:030.84:446:24Waxing Gibbous19Wed
20Thu8:3910.19:0010.52:270.82:470.54:426:25Waxing Gibbous20Thu
21Fri9:2310.59:4211.03:110.23:290.14:416:26Full Moon21Fri
22Sat10:0710.810:2311.53:55-0.44:11-0.24:396:27Full Moon22Sat
23Sun10:5111.111:0511.94:38-0.94:53-0.34:386:28Full Moon23Sun
24Mon11:3611.211:5012.15:22-1.25:37-0.44:366:30Full Moon24Mon
25Tue12:2311.26:09-1.46:24-0.34:346:31Waning Gibbous25Tue
26Wed12:3712.11:1311.16:58-1.37:15-0.14:336:32Waning Gibbous26Wed
27Thu1:2811.92:0810.87:51-1.18:100.24:316:33Waning Gibbous27Thu
28Fri2:2411.63:0610.58:48-0.89:110.54:306:35Third Quarter28Fri
29Sat3:2511.24:1010.39:50-0.410:160.74:286:36Third Quarter29Sat
30Sun5:3110.86:1510.311:55-0.25:277:37Third Quarter30Sun
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 2:25 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 52% 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 (52% 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