Tides Today & Tomorrow in Castle Hill, RI

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently rising in Castle Hill, RI.
Next low tide : 12:49 pm (-0.1 ft)
Next high tide : in 5h 03m at 7:02 am (3.7 ft)
Sunset today : 7:50 pm
Sunrise tomorrow : 5:50 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8453201
Common Questions About Tides

Castle Hill, RI Tides - Dec 2092

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:574.69:253.82:10-0.63:13-0.56:534:16Waxing Crescent1Mon
2Tue9:524.310:213.73:02-0.44:04-0.36:544:16Waxing Crescent2Tue
3Wed10:494.111:203.63:55-0.24:590.06:554:15Waxing Crescent3Wed
4Thu11:483.84:520.16:130.26:564:15First Quarter4Thu
5Fri12:203.512:463.56:080.47:450.36:574:15First Quarter5Fri
6Sat1:193.41:443.38:240.68:480.46:584:15First Quarter6Sat
7Sun2:183.32:433.19:350.59:330.46:584:15First Quarter7Sun
8Mon3:193.33:433.010:260.510:030.36:594:15Waxing Gibbous8Mon
9Tue4:183.44:383.011:060.410:280.37:004:15Waxing Gibbous9Tue
10Wed5:093.55:273.011:380.310:580.27:014:15Waxing Gibbous10Wed
11Thu5:543.56:113.012:070.27:024:15Waxing Gibbous11Thu
12Fri6:343.56:513.112:400.17:034:16Full Moon12Fri
13Sat7:113.57:293.012:120.01:170.07:034:16Full Moon13Sat
14Sun7:463.58:073.012:52-0.11:550.07:044:16Full Moon14Sun
15Mon8:203.48:442.91:34-0.12:330.07:054:16Full Moon15Mon
16Tue8:543.39:222.82:150.03:080.07:054:17Waning Gibbous16Tue
17Wed9:303.110:032.72:550.03:420.17:064:17Waning Gibbous17Wed
18Thu10:103.010:472.73:340.14:150.27:074:17Waning Gibbous18Thu
19Fri10:552.911:342.74:140.24:510.37:074:18Waning Gibbous19Fri
20Sat11:432.85:000.45:340.37:084:18Third Quarter20Sat
21Sun12:232.812:342.85:550.46:280.37:084:19Third Quarter21Sun
22Mon1:142.91:292.87:050.47:300.27:094:19Third Quarter22Mon
23Tue2:083.12:282.98:240.38:320.07:094:20Third Quarter23Tue
24Wed3:093.43:333.09:360.19:31-0.27:094:20Waning Crescent24Wed
25Thu4:113.74:373.210:37-0.110:26-0.57:104:21Waning Crescent25Thu
26Fri5:104.05:353.411:31-0.411:18-0.67:104:22Waning Crescent26Fri
27Sat6:054.36:303.712:24-0.57:104:23New Moon27Sat
28Sun6:584.57:233.812:11-0.81:19-0.67:114:23New Moon28Sun
29Mon7:504.68:153.91:04-0.82:12-0.77:114:24New Moon29Mon
30Tue8:424.59:083.91:59-0.73:02-0.67:114:25Waxing Crescent30Tue
31Wed9:354.22:53-0.63:47-0.57:114:26Waxing Crescent31Wed
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 9:55 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 2% 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 New Moon (2% 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