Tides Today & Tomorrow in Newcastle, ME

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently falling in Newcastle, ME.
Next low tide : in 1h 09m at 10:52 pm (0.7 ft)
Next high tide (tomorrow) : 4:56 am (8.7 ft)
Sunset today : 7:38 pm
Sunrise tomorrow : 5:45 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8416608
Common Questions About Tides

Newcastle, ME Tides - Jan 1937

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:019.82:1310.28:090.28:40-0.37:134:10Waning Gibbous1Fri
2Sat2:509.63:059.59:020.69:290.27:134:11Third Quarter2Sat
3Sun3:409.33:598.99:570.910:180.77:134:12Third Quarter3Sun
4Mon4:319.14:558.410:531.111:081.27:134:13Third Quarter4Mon
5Tue5:229.05:528.111:511.37:134:14Third Quarter5Tue
6Wed6:158.96:527.912:011.512:511.37:124:15Waning Crescent6Wed
7Thu7:099.07:497.912:571.71:501.17:124:16Waning Crescent7Thu
8Fri8:019.18:418.01:511.72:420.97:124:17Waning Crescent8Fri
9Sat8:499.49:288.22:411.63:270.67:124:18Waning Crescent9Sat
10Sun9:329.710:118.53:251.34:080.37:124:19Waning Crescent10Sun
11Mon10:139.910:518.84:061.14:470.07:114:20New Moon11Mon
12Tue10:5210.211:299.04:460.85:23-0.37:114:21New Moon12Tue
13Wed11:3110.45:250.56:00-0.57:104:23New Moon13Wed
14Thu12:069.312:1010.56:050.36:37-0.77:104:24Waxing Crescent14Thu
15Fri12:439.512:5010.56:470.17:16-0.87:094:25Waxing Crescent15Fri
16Sat1:219.81:3210.37:31-0.17:57-0.77:094:26Waxing Crescent16Sat
17Sun2:0310.02:1910.18:18-0.18:42-0.57:084:27Waxing Crescent17Sun
18Mon2:5010.13:129.79:11-0.19:32-0.37:084:29First Quarter18Mon
19Tue3:4110.14:109.310:08-0.110:260.07:074:30First Quarter19Tue
20Wed4:3810.15:138.911:090.011:250.47:064:31First Quarter20Wed
21Thu5:3910.16:228.712:160.07:064:33Waxing Gibbous21Thu
22Fri6:4510.27:338.812:290.51:26-0.27:054:34Waxing Gibbous22Fri
23Sat7:5110.48:389.01:370.52:32-0.57:044:35Waxing Gibbous23Sat
24Sun8:5310.79:369.32:410.33:31-0.87:034:37Waxing Gibbous24Sun
25Mon9:5010.910:309.73:400.04:25-1.17:024:38Full Moon25Mon
26Tue10:4211.111:199.94:34-0.25:14-1.27:014:39Full Moon26Tue
27Wed11:3211.05:25-0.46:01-1.27:014:41Full Moon27Wed
28Thu12:0510.012:1810.86:13-0.46:44-1.07:004:42Waning Gibbous28Thu
29Fri12:4910.01:0210.46:58-0.37:25-0.66:594:43Waning Gibbous29Fri
30Sat1:309.91:469.97:430.08:06-0.26:574:45Waning Gibbous30Sat
31Sun2:129.72:319.38:280.38:470.36:564:46Waning Gibbous31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8416608)

Common Questions About Newcastle, ME Tides

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What time does the tide turn (slack tide) in Newcastle, ME today?

Slack tide in Newcastle, ME is approximately 1:54 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 Newcastle, ME?

Newcastle, ME is currently in a transitional phase. Tonight's moon is 36% 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 Newcastle, 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 Newcastle, ME?

Tide predictions for Newcastle, 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 Newcastle, ME?

Tide data for Newcastle, ME is sourced from NOAA Station #8416608. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8416608.

What is the moon phase in Newcastle, ME tonight?

Tonight the moon over Newcastle, ME is First Quarter (36% illuminated). This places Newcastle, 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