Tides Today & Tomorrow in Castine, ME

TIDE TIMES for Thursday, August 20, 2026
The tide is currently falling in Castine, ME.
Next low tide (tomorrow) : in 3h 57m at 12:12 am (1.5 ft)
Next high tide (tomorrow) : 6:27 am (8.5 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 1927

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:3011.911:4812.65:15-1.75:34-1.15:267:37New Moon1Sun
2Mon12:2211.86:07-2.06:24-0.95:257:39New Moon2Mon
3Tue12:3712.61:1311.56:58-1.97:15-0.55:237:40Waxing Crescent3Tue
4Wed1:2712.42:0611.17:50-1.68:060.05:227:41Waxing Crescent4Wed
5Thu2:1811.93:0010.68:43-1.09:000.65:217:42Waxing Crescent5Thu
6Fri3:1211.33:5610.09:38-0.49:571.25:197:43Waxing Crescent6Fri
7Sat4:0910.64:559.610:360.210:571.65:187:45First Quarter7Sat
8Sun5:0910.05:569.311:350.711:591.95:177:46First Quarter8Sun
9Mon6:129.76:569.212:351.05:157:47First Quarter9Mon
10Tue7:139.57:529.31:011.91:321.25:147:48First Quarter10Tue
11Wed8:119.48:429.51:591.72:241.25:137:49Waxing Gibbous11Wed
12Thu9:039.59:279.82:511.43:111.15:117:50Waxing Gibbous12Thu
13Fri9:499.610:0710.13:381.13:541.15:107:52Waxing Gibbous13Fri
14Sat10:329.710:4410.44:210.74:331.15:097:53Waxing Gibbous14Sat
15Sun11:119.811:2010.65:000.55:101.15:087:54Full Moon15Sun
16Mon11:489.811:5410.75:370.35:451.15:077:55Full Moon16Mon
17Tue12:259.86:130.26:201.25:067:56Full Moon17Tue
18Wed12:2910.81:029.86:500.16:561.35:057:57Full Moon18Wed
19Thu1:0510.81:419.77:270.17:341.45:047:58Waning Gibbous19Thu
20Fri1:4510.82:239.78:080.18:171.55:037:59Waning Gibbous20Fri
21Sat2:2810.73:099.68:530.29:041.65:028:00Waning Gibbous21Sat
22Sun3:1710.64:009.69:420.29:581.55:018:01Third Quarter22Sun
23Mon4:1110.54:569.710:360.210:581.45:008:02Third Quarter23Mon
24Tue5:1110.45:569.911:350.24:598:03Third Quarter24Tue
25Wed6:1510.46:5610.312:011.212:350.14:588:04Third Quarter25Wed
26Thu7:2010.57:5510.91:070.71:350.04:588:05Waning Crescent26Thu
27Fri8:2310.78:5211.52:100.12:33-0.24:578:06Waning Crescent27Fri
28Sat9:2311.09:4612.03:09-0.53:28-0.44:568:07Waning Crescent28Sat
29Sun10:1911.210:3712.34:06-1.14:22-0.44:558:08New Moon29Sun
30Mon11:1311.211:2712.54:59-1.55:13-0.44:558:09New Moon30Mon
31Tue12:0511.25:51-1.66:04-0.24:548:10New Moon31Tue
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 3:19 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