Tides Today & Tomorrow in Castine, ME

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently rising in Castine, ME.
Next low tide (tomorrow) : 11:28 am (2.0 ft)
Next high tide (tomorrow) : in 5h 51m at 5:28 am (8.9 ft)
Sunset today : 7:34 pm
Sunrise tomorrow : 5:43 am
Moon phase : First Quarter (46% illuminated)
Tide Station Location : Station #8414672
Common Questions About Tides

Castine, ME Tides - Aug 1929

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:459.58:0511.31:300.21:421.05:218:00Waning Crescent1Thu
2Fri8:499.89:0611.62:34-0.22:450.85:227:59Waning Crescent2Fri
3Sat9:5110.110:0612.03:36-0.63:470.55:237:58New Moon3Sat
4Sun10:4910.511:0412.34:35-1.04:470.15:257:57New Moon4Sun
5Mon11:4410.811:5912.45:30-1.35:43-0.15:267:55New Moon5Mon
6Tue12:3711.16:23-1.46:38-0.35:277:54New Moon6Tue
7Wed12:5312.31:2811.27:14-1.37:32-0.35:287:53Waxing Crescent7Wed
8Thu1:4612.02:1911.28:05-1.08:26-0.15:297:51Waxing Crescent8Thu
9Fri2:3811.43:1011.08:54-0.59:200.25:307:50Waxing Crescent9Fri
10Sat3:3210.84:0110.79:440.110:150.55:317:48First Quarter10Sat
11Sun4:2710.14:5310.410:350.811:110.85:337:47First Quarter11Sun
12Mon5:249.55:4610.111:281.35:347:45First Quarter12Mon
13Tue6:239.06:429.912:091.112:241.85:357:44First Quarter13Tue
14Wed7:238.77:389.81:081.31:212.15:367:42Waxing Gibbous14Wed
15Thu8:218.68:339.82:061.32:162.15:377:41Waxing Gibbous15Thu
16Fri9:148.79:2310.02:591.13:082.05:387:39Waxing Gibbous16Fri
17Sat10:028.910:0910.23:480.93:561.85:407:38Waxing Gibbous17Sat
18Sun10:459.210:5110.44:320.74:391.65:417:36Full Moon18Sun
19Mon11:249.511:3010.65:120.55:191.45:427:35Full Moon19Mon
20Tue12:009.75:490.35:561.15:437:33Full Moon20Tue
21Wed12:0710.812:3510.06:240.26:331.05:447:31Full Moon21Wed
22Thu12:4310.81:0910.26:580.17:100.85:457:30Waning Gibbous22Thu
23Fri1:2010.81:4410.47:320.27:480.75:477:28Waning Gibbous23Fri
24Sat1:5810.72:2210.68:090.28:300.55:487:26Waning Gibbous24Sat
25Sun2:4010.43:0310.78:480.49:160.55:497:25Waning Gibbous25Sun
26Mon3:2610.23:4910.89:320.610:070.45:507:23Third Quarter26Mon
27Tue4:189.84:4010.810:210.911:040.55:517:21Third Quarter27Tue
28Wed5:179.55:3910.711:181.15:527:19Third Quarter28Wed
29Thu6:239.36:4410.812:070.512:211.35:547:18Waning Crescent29Thu
30Fri7:319.37:5111.01:150.31:291.25:557:16Waning Crescent30Fri
31Sat8:389.68:5711.32:220.02:370.95:567:14Waning Crescent31Sat
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 46% 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 (46% 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