Tides Today & Tomorrow in Castine, ME

TIDE TIMES for Saturday, July 18, 2026
The tide is currently rising in Castine, ME.
Next low tide (tomorrow) : 9:33 am (-0.2 ft)
Next high tide (tomorrow) : in 6h 00m at 3:17 am (11.1 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 5:08 am
Moon phase : Waxing Crescent (23% illuminated)
Tide Station Location : Station #8414672
Common Questions About Tides

Castine, ME Tides - Sep 1978

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:049.911:1610.74:530.45:050.85:577:12New Moon1Fri
2Sat11:4010.211:5210.85:300.25:420.75:587:10New Moon2Sat
3Sun12:1510.46:050.26:190.56:007:09New Moon3Sun
4Mon12:2810.812:4910.66:390.26:550.46:017:07Waxing Crescent4Mon
5Tue1:0510.71:2410.77:130.27:320.36:027:05Waxing Crescent5Tue
6Wed1:4310.62:0210.87:500.38:130.36:037:03Waxing Crescent6Wed
7Thu2:2410.52:4410.98:300.48:580.26:047:01Waxing Crescent7Thu
8Fri3:0910.33:3010.99:140.69:480.36:056:59First Quarter8Fri
9Sat4:0110.04:2310.810:050.710:440.36:066:58First Quarter9Sat
10Sun4:589.85:2210.811:020.911:460.36:086:56First Quarter10Sun
11Mon6:029.76:2710.812:060.96:096:54First Quarter11Mon
12Tue7:099.97:3311.112:520.11:130.76:106:52Waxing Gibbous12Tue
13Wed8:1410.28:3711.41:57-0.22:190.36:116:50Waxing Gibbous13Wed
14Thu9:1510.79:3711.82:59-0.63:21-0.26:126:48Waxing Gibbous14Thu
15Fri10:1111.310:3312.13:56-1.04:18-0.76:136:46Full Moon15Fri
16Sat11:0311.711:2612.24:49-1.35:12-1.16:156:44Full Moon16Sat
17Sun11:5312.05:39-1.46:03-1.36:166:43Full Moon17Sun
18Mon12:1612.112:4012.06:28-1.26:53-1.26:176:41Waning Gibbous18Mon
19Tue1:0611.81:2811.97:15-0.87:43-0.96:186:39Waning Gibbous19Tue
20Wed1:5511.42:1511.58:03-0.38:32-0.56:196:37Waning Gibbous20Wed
21Thu2:4510.83:0411.08:510.39:230.06:206:35Waning Gibbous21Thu
22Fri3:3610.23:5410.59:410.910:160.66:226:33Third Quarter22Fri
23Sat4:309.64:4810.110:341.411:111.06:236:31Third Quarter23Sat
24Sun5:269.25:459.711:301.86:246:29Third Quarter24Sun
25Mon6:258.96:439.512:091.312:282.06:256:28Third Quarter25Mon
26Tue7:228.97:409.61:061.31:251.96:266:26Waning Crescent26Tue
27Wed8:169.18:339.72:001.22:191.76:276:24Waning Crescent27Wed
28Thu9:049.49:2010.02:501.03:081.46:296:22Waning Crescent28Thu
29Fri9:489.810:0410.33:350.83:521.06:306:20Waning Crescent29Fri
30Sat10:2710.210:4410.54:150.54:330.66:316:18New Moon30Sat
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 6:25 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 transitional phase. Tonight's moon is 23% 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 shifting between spring and neap.

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 Waxing Crescent (23% illuminated). This places Castine, ME in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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