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 51m 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 - May 1929

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:429.35:288.511:081.511:252.55:257:38Third Quarter1Wed
2Thu5:389.26:238.612:031.55:247:39Third Quarter2Thu
3Fri6:369.27:178.912:232.412:571.45:237:40Third Quarter3Fri
4Sat7:339.48:089.41:202.01:491.15:217:42Waning Crescent4Sat
5Sun8:269.88:5510.02:141.52:380.85:207:43Waning Crescent5Sun
6Mon9:1710.29:4010.73:050.83:250.45:187:44Waning Crescent6Mon
7Tue10:0610.610:2411.43:530.04:100.15:177:45New Moon7Tue
8Wed10:5410.911:0911.94:41-0.74:55-0.15:167:46New Moon8Wed
9Thu11:4211.111:5412.35:28-1.25:41-0.25:157:48New Moon9Thu
10Fri12:3111.16:17-1.56:29-0.15:137:49New Moon10Fri
11Sat12:4312.41:2311.07:07-1.67:200.15:127:50Waxing Crescent11Sat
12Sun1:3412.32:1710.78:00-1.48:140.45:117:51Waxing Crescent12Sun
13Mon2:2911.93:1510.48:57-1.09:140.75:107:52Waxing Crescent13Mon
14Tue3:2811.44:1710.19:58-0.510:181.05:097:53First Quarter14Tue
15Wed4:3310.95:239.911:02-0.111:261.25:077:54First Quarter15Wed
16Thu5:4110.56:299.912:070.25:067:56First Quarter16Thu
17Fri6:5010.37:3110.112:351.21:100.45:057:57First Quarter17Fri
18Sat7:5510.28:2910.31:410.92:090.45:047:58Waxing Gibbous18Sat
19Sun8:5410.19:2010.62:410.63:030.55:037:59Waxing Gibbous19Sun
20Mon9:4810.110:0610.83:350.33:510.65:028:00Waxing Gibbous20Mon
21Tue10:3610.110:4810.94:230.04:360.75:018:01Full Moon21Tue
22Wed11:2010.011:2710.95:08-0.15:170.95:008:02Full Moon22Wed
23Thu12:019.95:48-0.15:561.25:008:03Full Moon23Thu
24Fri12:0510.912:409.86:270.06:341.44:598:04Full Moon24Fri
25Sat12:4110.71:189.67:050.27:111.74:588:05Waning Gibbous25Sat
26Sun1:1810.51:569.47:430.47:491.94:578:06Waning Gibbous26Sun
27Mon1:5710.32:369.28:210.78:292.14:568:07Waning Gibbous27Mon
28Tue2:3710.13:189.19:020.99:112.24:568:08Waning Gibbous28Tue
29Wed3:209.94:029.09:451.09:572.34:558:09Waning Gibbous29Wed
30Thu4:079.74:499.010:301.110:472.24:548:10Third Quarter30Thu
31Fri4:579.65:389.211:181.211:402.14:548:11Third Quarter31Fri
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