Tides Today & Tomorrow in Castle Hill, RI

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently falling in Castle Hill, RI.
Next low tide : in 3h 47m at 5:33 am (0.1 ft)
Next high tide : 12:27 pm (3.6 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 5:43 am
Moon phase : Third Quarter (66% illuminated)
Tide Station Location : Station #8453201
Common Questions About Tides

Castle Hill, RI Tides - May 2082

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:382.810:443.34:230.24:060.25:417:43Waxing Crescent1Fri
2Sat11:242.711:333.24:580.34:460.35:407:44Waxing Crescent2Sat
3Sun12:152.75:370.55:320.45:387:45Waxing Crescent3Sun
4Mon12:273.11:092.86:260.56:280.55:377:46First Quarter4Mon
5Tue1:243.12:052.97:310.67:400.55:367:47First Quarter5Tue
6Wed2:213.13:023.28:470.59:050.55:357:48First Quarter6Wed
7Thu3:223.24:033.59:500.310:250.35:347:49Waxing Gibbous7Thu
8Fri4:273.25:043.810:410.011:290.05:327:50Waxing Gibbous8Fri
9Sat5:303.46:024.211:28-0.25:317:52Waxing Gibbous9Sat
10Sun6:283.56:564.512:25-0.212:14-0.35:307:53Waxing Gibbous10Sun
11Mon7:213.67:474.71:18-0.31:00-0.45:297:54Full Moon11Mon
12Tue8:133.78:384.72:12-0.41:48-0.45:287:55Full Moon12Tue
13Wed9:043.79:294.53:05-0.32:38-0.35:277:56Full Moon13Wed
14Thu9:563.610:214.23:56-0.23:28-0.15:267:57Waning Gibbous14Thu
15Fri10:483.511:153.94:420.04:180.15:257:58Waning Gibbous15Fri
16Sat11:433.35:280.25:070.35:247:59Waning Gibbous16Sat
17Sun12:113.612:403.26:180.56:010.65:238:00Third Quarter17Sun
18Mon1:063.31:363.17:220.67:120.85:228:01Third Quarter18Mon
19Tue2:003.02:303.18:310.79:010.95:228:02Third Quarter19Tue
20Wed2:522.83:243.09:200.710:110.95:218:03Third Quarter20Wed
21Thu3:452.74:193.19:570.710:580.85:208:03Waning Crescent21Thu
22Fri4:402.65:123.210:320.611:380.65:198:04Waning Crescent22Fri
23Sat5:312.65:583.311:090.45:188:05Waning Crescent23Sat
24Sun6:162.76:373.412:160.511:46 AM0.35:188:06Waning Crescent24Sun
25Mon6:572.87:133.512:540.312:240.35:178:07Waning Crescent25Mon
26Tue7:352.97:483.61:350.21:040.25:168:08New Moon26Tue
27Wed8:143.08:253.62:160.21:440.25:168:09New Moon27Wed
28Thu8:533.09:033.62:580.22:260.25:158:10New Moon28Thu
29Fri9:353.09:443.63:370.23:080.25:158:10Waxing Crescent29Fri
30Sat10:193.010:293.54:130.23:500.25:148:11Waxing Crescent30Sat
31Sun11:073.011:183.54:480.34:340.35:148:12Waxing 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 9:00 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 transitional phase. Tonight's moon is 66% 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 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 Third Quarter (66% illuminated). This places Castle Hill, RI 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