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 16m 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 - Oct 2021

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:552.64:182.910:010.811:230.76:426:27Waning Crescent1Fri
2Sat4:552.95:173.211:010.611:580.46:436:25Waning Crescent2Sat
3Sun5:483.26:073.511:500.36:446:23Waning Crescent3Sun
4Mon6:353.66:533.712:300.212:360.06:456:22Waning Crescent4Mon
5Tue7:204.07:383.91:04-0.11:22-0.26:466:20New Moon5Tue
6Wed8:044.38:244.01:40-0.32:09-0.36:476:18New Moon6Wed
7Thu8:504.59:114.02:18-0.42:57-0.46:496:17New Moon7Thu
8Fri9:374.510:013.92:59-0.43:46-0.36:506:15Waxing Crescent8Fri
9Sat10:284.510:543.73:42-0.44:34-0.16:516:13Waxing Crescent9Sat
10Sun11:224.311:513.54:26-0.25:250.16:526:12Waxing Crescent10Sun
11Mon12:214.15:140.16:270.46:536:10First Quarter11Mon
12Tue12:523.31:233.96:090.48:340.76:546:09First Quarter12Tue
13Wed1:543.22:273.77:220.710:020.66:556:07First Quarter13Wed
14Thu2:573.23:323.69:420.711:010.66:566:05First Quarter14Thu
15Fri4:033.34:393.611:030.611:470.56:576:04Waxing Gibbous15Fri
16Sat5:073.55:383.611:540.56:586:02Waxing Gibbous16Sat
17Sun6:033.76:293.612:210.412:350.47:006:01Waxing Gibbous17Sun
18Mon6:513.97:133.712:450.31:090.37:015:59Full Moon18Mon
19Tue7:344.07:543.61:050.21:410.27:025:58Full Moon19Tue
20Wed8:144.08:333.51:310.12:150.27:035:56Full Moon20Wed
21Thu8:523.99:113.42:020.12:510.27:045:55Full Moon21Thu
22Fri9:283.89:493.22:370.13:280.27:055:53Waning Gibbous22Fri
23Sat10:033.610:273.03:140.24:050.37:065:52Waning Gibbous23Sat
24Sun10:383.411:082.83:520.34:420.57:085:51Waning Gibbous24Sun
25Mon11:173.111:522.64:300.45:200.67:095:49Waning Gibbous25Mon
26Tue12:003.05:100.66:040.87:105:48Waning Gibbous26Tue
27Wed12:412.512:492.85:550.87:031.07:115:46Third Quarter27Wed
28Thu1:312.51:412.86:510.98:381.07:125:45Third Quarter28Thu
29Fri2:222.62:352.88:040.99:500.87:145:44Third Quarter29Fri
30Sat3:172.73:332.99:240.810:340.67:155:42Third Quarter30Sat
31Sun4:153.04:333.110:320.511:100.37:165:41Waning Crescent31Sun
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