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 50m at 4:18 pm (0.1 ft)
Next high tide : 10:41 pm (3.8 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 - Nov 2099

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:063.59:412.92:290.23:230.46:174:40Waning Gibbous1Sun
2Mon9:513.410:302.83:080.34:000.56:184:39Waning Gibbous2Mon
3Tue10:443.311:252.83:500.44:440.66:204:37Waning Gibbous3Tue
4Wed11:413.24:380.55:420.76:214:36Third Quarter4Wed
5Thu12:222.812:413.25:400.67:090.76:224:35Third Quarter5Thu
6Fri1:203.01:403.37:000.68:310.56:234:34Third Quarter6Fri
7Sat2:203.22:433.38:310.59:230.36:244:33Waning Crescent7Sat
8Sun3:223.63:463.49:470.210:060.06:264:32Waning Crescent8Sun
9Mon4:224.04:463.610:460.010:47-0.26:274:31Waning Crescent9Mon
10Tue5:174.35:413.711:39-0.211:29-0.46:284:30Waning Crescent10Tue
11Wed6:094.66:323.812:29-0.36:294:29New Moon11Wed
12Thu6:594.77:223.812:12-0.41:20-0.36:304:28New Moon12Thu
13Fri7:484.68:123.712:57-0.42:11-0.26:324:27New Moon13Fri
14Sat8:384.49:033.51:45-0.32:58-0.16:334:26Waxing Crescent14Sat
15Sun9:304.19:553.32:32-0.13:420.26:344:25Waxing Crescent15Sun
16Mon10:243.810:503.13:200.14:270.46:354:24Waxing Crescent16Mon
17Tue11:203.411:473.04:080.45:180.66:364:23Waxing Crescent17Tue
18Wed12:163.25:010.76:350.86:384:23First Quarter18Wed
19Thu12:442.91:102.96:110.97:540.86:394:22First Quarter19Thu
20Fri1:392.82:022.88:030.98:400.76:404:21First Quarter20Fri
21Sat2:342.92:552.79:140.99:140.66:414:21First Quarter21Sat
22Sun3:292.93:482.610:010.79:470.56:424:20Waxing Gibbous22Sun
23Mon4:203.14:362.710:410.610:210.36:434:19Waxing Gibbous23Mon
24Tue5:033.25:182.711:190.410:560.26:444:19Waxing Gibbous24Tue
25Wed5:403.35:572.811:570.211:320.16:464:18Waxing Gibbous25Wed
26Thu6:153.56:352.912:360.16:474:18Full Moon26Thu
27Fri6:503.57:143.012:090.01:160.16:484:17Full Moon27Fri
28Sat7:273.67:543.012:480.01:560.16:494:17Full Moon28Sat
29Sun8:063.68:373.01:290.02:350.16:504:17Full Moon29Sun
30Mon8:503.59:232.92:110.03:120.16:514:16Waning Gibbous30Mon
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 7:29 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 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