Tides Today & Tomorrow in Castle Hill, RI

TIDE TIMES for Saturday, August 1, 2026
The tide is currently falling in Castle Hill, RI.
Next low tide : in 36m at 3:57 am (0.1 ft)
Next high tide : 10:13 am (3.4 ft)
Sunset today : 8:03 pm
Sunrise tomorrow : 5:40 am
Moon phase : Waning Gibbous (91% illuminated)
Tide Station Location : Station #8453201
Common Questions About Tides

Castle Hill, RI Tides - May 2078

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:152.611:273.14:540.34:410.45:417:43Waning Gibbous1Sun
2Mon12:032.65:310.45:220.55:407:44Waning Gibbous2Mon
3Tue12:183.012:552.66:160.66:120.65:387:45Third Quarter3Tue
4Wed1:133.01:492.77:160.67:180.65:377:46Third Quarter4Wed
5Thu2:103.02:462.98:320.68:410.65:367:47Third Quarter5Thu
6Fri3:103.13:473.19:410.410:050.45:357:48Third Quarter6Fri
7Sat4:143.24:493.510:350.111:130.15:347:49Waning Crescent7Sat
8Sun5:173.45:483.911:22-0.15:337:50Waning Crescent8Sun
9Mon6:153.66:424.312:10-0.212:06-0.45:317:52Waning Crescent9Mon
10Tue7:083.87:334.61:03-0.412:51-0.55:307:53New Moon10Tue
11Wed8:003.88:234.71:57-0.51:37-0.65:297:54New Moon11Wed
12Thu8:513.89:144.72:52-0.52:26-0.55:287:55New Moon12Thu
13Fri9:433.810:064.53:45-0.43:15-0.45:277:56Waxing Crescent13Fri
14Sat10:363.611:014.24:35-0.24:05-0.15:267:57Waxing Crescent14Sat
15Sun11:323.511:583.85:260.14:550.15:257:58Waxing Crescent15Sun
16Mon12:293.36:260.45:480.45:247:59Waxing Crescent16Mon
17Tue12:573.51:273.27:550.66:530.75:238:00First Quarter17Tue
18Wed1:543.22:253.19:090.78:410.95:228:01First Quarter18Wed
19Thu2:513.03:223.110:000.710:100.85:228:02First Quarter19Thu
20Fri3:482.84:203.210:370.610:590.85:218:02First Quarter20Fri
21Sat4:462.85:153.311:020.611:370.65:208:03Waxing Gibbous21Sat
22Sun5:382.86:023.411:270.55:198:04Waxing Gibbous22Sun
23Mon6:222.86:433.512:120.511:57 AM0.45:188:05Waxing Gibbous23Mon
24Tue7:022.97:203.612:480.412:310.35:188:06Waxing Gibbous24Tue
25Wed7:392.97:553.61:270.21:070.25:178:07Full Moon25Wed
26Thu8:152.98:293.62:070.21:450.25:168:08Full Moon26Thu
27Fri8:522.99:043.62:480.12:250.25:168:09Full Moon27Fri
28Sat9:302.99:423.53:270.13:040.35:158:10Full Moon28Sat
29Sun10:112.910:233.44:040.23:440.35:158:10Waning Gibbous29Sun
30Mon10:562.911:093.44:390.34:240.45:148:11Waning Gibbous30Mon
31Tue11:452.95:160.45:070.45:148:12Waning Gibbous31Tue
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 7:05 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 91% 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 Gibbous (91% 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