Tides Today & Tomorrow in Castle Hill, RI

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in Castle Hill, RI.
Next low tide : in 1h 21m at 7:43 am (0.4 ft)
Next high tide : 1:57 pm (3.7 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:11 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8453201
Common Questions About Tides

Castle Hill, RI Tides - Nov 2021

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:113.45:313.311:260.211:460.07:175:40Waning Crescent1Mon
2Tue6:033.86:233.612:15-0.17:185:39Waning Crescent2Tue
3Wed6:524.27:133.812:24-0.31:02-0.37:205:37New Moon3Wed
4Thu7:404.58:023.91:04-0.51:52-0.47:215:36New Moon4Thu
5Fri8:284.78:523.91:47-0.62:42-0.57:225:35New Moon5Fri
6Sat9:184.79:443.82:33-0.63:34-0.47:235:34Waxing Crescent6Sat
7Sun9:104.69:383.72:21-0.53:25-0.26:244:33Waxing Crescent7Sun
8Mon10:064.310:353.53:10-0.34:170.06:264:32Waxing Crescent8Mon
9Tue11:054.011:363.44:010.05:230.36:274:31Waxing Crescent9Tue
10Wed12:073.84:590.47:160.56:284:30First Quarter10Wed
11Thu12:383.31:093.56:210.68:350.56:294:29First Quarter11Thu
12Fri1:403.32:103.48:470.79:320.56:304:28First Quarter12Fri
13Sat2:433.33:123.39:550.610:140.46:324:27Waxing Gibbous13Sat
14Sun3:453.44:113.210:430.510:420.46:334:26Waxing Gibbous14Sun
15Mon4:403.55:023.211:210.411:020.36:344:25Waxing Gibbous15Mon
16Tue5:283.75:473.211:520.311:250.26:354:24Waxing Gibbous16Tue
17Wed6:103.76:283.212:220.26:364:24Full Moon17Wed
18Thu6:493.87:073.212:540.26:384:23Full Moon18Thu
19Fri7:253.77:443.112:290.11:300.16:394:22Full Moon19Fri
20Sat7:593.68:223.01:070.12:080.16:404:21Full Moon20Sat
21Sun8:333.49:002.91:470.12:460.26:414:21Waning Gibbous21Sun
22Mon9:083.39:392.72:270.23:220.36:424:20Waning Gibbous22Mon
23Tue9:463.110:222.63:060.33:590.46:434:19Waning Gibbous23Tue
24Wed10:293.011:092.63:460.44:370.66:454:19Waning Gibbous24Wed
25Thu11:162.911:592.64:280.55:210.76:464:18Third Quarter25Thu
26Fri12:072.85:180.66:180.76:474:18Third Quarter26Fri
27Sat12:492.71:002.86:230.77:260.66:484:17Third Quarter27Sat
28Sun1:412.81:552.97:420.68:250.46:494:17Third Quarter28Sun
29Mon2:373.12:553.08:580.49:160.16:504:17Waning Crescent29Mon
30Tue3:363.43:573.110:010.210:02-0.16:514:16Waning Crescent30Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8453201)

Common Questions About Castle Hill, RI Tides

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What time does the tide turn (slack tide) in Castle Hill, RI today?

Slack tide in Castle Hill, RI is approximately 10:50 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 Castle Hill, RI?

Castle Hill, RI is currently in a neap phase. Tonight's moon is 48% 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 Castle Hill, RI 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 Castle Hill, RI?

Tide predictions for Castle Hill, RI 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 Castle Hill, RI?

Tide data for Castle Hill, RI is sourced from NOAA Station #8453201. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8453201.

What is the moon phase in Castle Hill, RI tonight?

Tonight the moon over Castle Hill, RI is First Quarter (48% illuminated). This places Castle Hill, RI 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