Tides Today & Tomorrow in Castle Hill, RI

TIDE TIMES for Saturday, August 15, 2026
The tide is currently falling in Castle Hill, RI.
Next low tide : in 53m at 4:00 am (-0.1 ft)
Next high tide : 10:21 am (4.2 ft)
Sunset today : 7:45 pm
Sunrise tomorrow : 5:54 am
Moon phase : Waxing Crescent (11% illuminated)
Tide Station Location : Station #8453201
Common Questions About Tides

Castle Hill, RI Tides - Jan 2099

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:032.72:252.39:030.68:270.37:114:26First Quarter1Thu
2Fri2:572.93:272.310:020.49:220.17:114:27Waxing Gibbous2Fri
3Sat3:573.14:292.510:510.210:14-0.17:114:28Waxing Gibbous3Sat
4Sun4:563.35:252.711:380.011:05-0.37:114:29Waxing Gibbous4Sun
5Mon5:493.66:163.012:25-0.27:114:30Full Moon5Mon
6Tue6:393.97:063.31:14-0.37:114:31Full Moon6Tue
7Wed7:294.07:563.512:47-0.62:02-0.57:114:32Full Moon7Wed
8Thu8:184.18:463.61:40-0.72:48-0.57:114:33Full Moon8Thu
9Fri9:094.09:393.72:33-0.73:30-0.57:104:34Waning Gibbous9Fri
10Sat10:013.910:333.73:25-0.64:10-0.57:104:35Waning Gibbous10Sat
11Sun10:543.611:293.74:18-0.34:52-0.37:104:36Waning Gibbous11Sun
12Mon11:503.35:170.05:39-0.27:104:37Third Quarter12Mon
13Tue12:263.612:463.06:350.26:340.07:094:38Third Quarter13Tue
14Wed1:233.51:432.88:260.47:380.27:094:39Third Quarter14Wed
15Thu2:233.42:462.69:450.48:460.37:084:40Waning Crescent15Thu
16Fri3:283.33:532.610:450.39:470.37:084:41Waning Crescent16Fri
17Sat4:323.34:552.611:340.310:380.27:074:43Waning Crescent17Sat
18Sun5:293.45:482.812:150.27:074:44Waning Crescent18Sun
19Mon6:183.46:342.912:510.27:064:45New Moon19Mon
20Tue7:013.47:173.012:050.11:220.17:064:46New Moon20Tue
21Wed7:423.47:573.012:490.01:530.07:054:47New Moon21Wed
22Thu8:193.38:353.01:32-0.12:230.07:044:49New Moon22Thu
23Fri8:543.29:132.92:15-0.12:54-0.17:044:50Waxing Crescent23Fri
24Sat9:293.09:492.92:55-0.13:24-0.17:034:51Waxing Crescent24Sat
25Sun10:032.810:252.83:330.03:54-0.17:024:52Waxing Crescent25Sun
26Mon10:392.611:032.74:110.24:240.07:014:54Waxing Crescent26Mon
27Tue11:192.511:432.74:510.34:580.17:004:55First Quarter27Tue
28Wed12:032.35:370.55:380.26:594:56First Quarter28Wed
29Thu12:262.712:512.26:360.66:280.26:594:57First Quarter29Thu
30Fri1:152.71:462.27:570.67:300.26:584:59First Quarter30Fri
31Sat2:122.82:492.29:240.58:380.16:575:00Waxing Gibbous31Sat
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 7:10 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 spring phase. Tonight's moon is 11% 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 Waxing Crescent (11% 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