Tides Today & Tomorrow in Castle Hill, RI

TIDE TIMES for Sunday, August 9, 2026
The tide is currently falling in Castle Hill, RI.
Next low tide : in 4h 02m at 10:43 am (0.2 ft)
Next high tide : 5:37 pm (4.0 ft)
Sunset today : 7:53 pm
Sunrise tomorrow : 5:48 am
Moon phase : Waning Crescent (13% illuminated)
Tide Station Location : Station #8453201
Common Questions About Tides

Castle Hill, RI Tides - Oct 2089

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:464.06:144.111:540.06:436:26Waning Crescent1Sat
2Sun6:424.47:074.312:30-0.112:48-0.26:446:24New Moon2Sun
3Mon7:334.67:574.31:10-0.21:38-0.36:456:23New Moon3Mon
4Tue8:224.78:454.21:50-0.32:28-0.36:466:21New Moon4Tue
5Wed9:104.79:334.12:31-0.33:15-0.26:476:19New Moon5Wed
6Thu9:584.510:213.83:12-0.23:590.06:486:18Waxing Crescent6Thu
7Fri10:474.211:113.63:520.04:400.26:496:16Waxing Crescent7Fri
8Sat11:383.94:330.25:210.56:506:14Waxing Crescent8Sat
9Sun12:033.312:313.55:160.56:080.76:516:13First Quarter9Sun
10Mon12:563.11:253.36:030.77:080.96:526:11First Quarter10Mon
11Tue1:502.92:183.07:030.98:421.06:536:09First Quarter11Tue
12Wed2:432.83:122.98:231.09:520.96:556:08First Quarter12Wed
13Thu3:392.84:082.99:490.910:370.86:566:06Waxing Gibbous13Thu
14Fri4:362.95:022.910:480.811:140.66:576:05Waxing Gibbous14Fri
15Sat5:273.15:483.011:340.611:480.46:586:03Waxing Gibbous15Sat
16Sun6:103.36:283.212:150.46:596:02Waxing Gibbous16Sun
17Mon6:483.57:053.312:220.212:550.27:006:00Full Moon17Mon
18Tue7:243.77:423.412:560.01:340.17:015:58Full Moon18Tue
19Wed8:003.88:213.51:31-0.12:130.07:025:57Full Moon19Wed
20Thu8:393.99:033.52:07-0.12:530.07:045:56Full Moon20Thu
21Fri9:203.99:473.52:45-0.23:320.07:055:54Waning Gibbous21Fri
22Sat10:043.910:353.43:24-0.14:110.07:065:53Waning Gibbous22Sat
23Sun10:543.811:283.44:06-0.14:530.27:075:51Waning Gibbous23Sun
24Mon11:483.74:510.15:400.37:085:50Waning Gibbous24Mon
25Tue12:253.312:463.75:420.26:400.57:095:48Third Quarter25Tue
26Wed1:233.31:463.66:440.48:100.57:115:47Third Quarter26Wed
27Thu2:233.42:483.68:040.59:490.47:125:46Third Quarter27Thu
28Fri3:253.63:513.69:420.410:450.37:135:44Waning Crescent28Fri
29Sat4:283.84:563.711:000.311:280.17:145:43Waning Crescent29Sat
30Sun5:294.15:553.811:560.17:155:42Waning Crescent30Sun
31Mon6:244.36:483.912:06-0.112:44-0.17:165:40Waning Crescent31Mon
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 2:10 pm — 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 spring phase. Tonight's moon is 13% 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 maximum.

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 Waning Crescent (13% illuminated). This places Castle Hill, RI in a spring tide cycle, so tidal ranges are near their weekly maximum 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