Tides Today & Tomorrow in Castle Hill, RI

TIDE TIMES for Sunday, August 16, 2026
The tide is currently rising in Castle Hill, RI.
Next low tide : 5:00 pm (0.3 ft)
Next high tide : in 5h 19m at 11:10 am (4.1 ft)
Sunset today : 7:43 pm
Sunrise tomorrow : 5:55 am
Moon phase : Waxing Crescent (18% illuminated)
Tide Station Location : Station #8453201
Common Questions About Tides

Castle Hill, RI Tides - Nov 2100

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:214.67:443.812:43-0.41:36-0.47:175:40New Moon1Mon
2Tue8:104.88:353.91:27-0.52:28-0.47:185:39New Moon2Tue
3Wed9:014.89:263.82:14-0.53:21-0.47:195:38New Moon3Wed
4Thu9:534.610:203.73:03-0.44:13-0.27:205:36Waxing Crescent4Thu
5Fri10:494.311:163.53:54-0.25:050.17:225:35Waxing Crescent5Fri
6Sat11:474.04:450.16:060.47:235:34Waxing Crescent6Sat
7Sun12:163.311:48 AM3.74:410.46:450.66:244:33First Quarter7Sun
8Mon12:183.212:493.45:540.78:090.66:254:32First Quarter8Mon
9Tue1:183.21:483.28:200.89:060.66:264:31First Quarter9Tue
10Wed2:193.22:473.19:320.79:470.66:284:30First Quarter10Wed
11Thu3:193.33:453.010:200.710:130.56:294:29Waxing Gibbous11Thu
12Fri4:163.44:373.010:570.610:340.46:304:28Waxing Gibbous12Fri
13Sat5:043.55:233.011:270.510:590.36:314:27Waxing Gibbous13Sat
14Sun5:463.66:033.011:580.311:300.26:334:26Waxing Gibbous14Sun
15Mon6:243.66:413.012:310.26:344:25Full Moon15Mon
16Tue6:583.67:183.012:050.11:080.26:354:24Full Moon16Tue
17Wed7:323.57:543.012:430.11:470.26:364:24Full Moon17Wed
18Thu8:053.48:312.91:220.12:250.26:374:23Full Moon18Thu
19Fri8:403.39:102.82:020.23:020.36:384:22Waning Gibbous19Fri
20Sat9:183.29:532.72:420.33:370.46:404:21Waning Gibbous20Sat
21Sun10:013.110:402.63:210.34:130.56:414:21Waning Gibbous21Sun
22Mon10:503.011:312.74:020.44:530.66:424:20Waning Gibbous22Mon
23Tue11:423.04:500.55:430.66:434:20Third Quarter23Tue
24Wed12:232.812:353.05:500.66:440.56:444:19Third Quarter24Wed
25Thu1:163.01:313.07:060.67:480.46:454:18Third Quarter25Thu
26Fri2:113.22:303.08:290.58:450.26:464:18Waning Crescent26Fri
27Sat3:103.53:333.19:400.29:37-0.16:484:17Waning Crescent27Sat
28Sun4:113.94:353.210:390.010:26-0.36:494:17Waning Crescent28Sun
29Mon5:084.25:333.411:32-0.311:14-0.56:504:17Waning Crescent29Mon
30Tue6:024.56:263.612:25-0.46:514:16New Moon30Tue
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 2:05 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 18% 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 (18% 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