Tides Today & Tomorrow in Castle Hill, RI

TIDE TIMES for Sunday, August 9, 2026
The tide is currently rising in Castle Hill, RI.
Next low tide (tomorrow) : 12:32 am (0.3 ft)
Next high tide : in 4h 30m at 5:37 pm (4.0 ft)
Sunset today : 7:53 pm
Sunrise tomorrow : 5:48 am
Moon phase : Waning Crescent (13% illuminated)
Tide Station Location : Station #8453201
Common Questions About Tides

Castle Hill, RI Tides - Apr 2090

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:193.29:323.43:08-0.23:05-0.26:277:11New Moon1Sat
2Sun9:563.110:093.43:43-0.23:38-0.26:257:12Waxing Crescent2Sun
3Mon10:373.010:503.34:16-0.14:13-0.16:237:13Waxing Crescent3Mon
4Tue11:233.011:373.34:500.04:50-0.16:227:14Waxing Crescent4Tue
5Wed12:132.95:290.15:330.06:207:15Waxing Crescent5Wed
6Thu12:293.21:082.96:170.36:250.26:187:16First Quarter6Thu
7Fri1:263.22:052.97:210.47:320.36:177:17First Quarter7Fri
8Sat2:263.23:063.18:470.48:510.26:157:18First Quarter8Sat
9Sun3:313.34:103.310:140.210:140.16:137:19Waxing Gibbous9Sun
10Mon4:393.45:153.611:130.011:24-0.26:127:20Waxing Gibbous10Mon
11Tue5:433.76:134.012:00-0.26:107:21Waxing Gibbous11Tue
12Wed6:403.97:074.412:23-0.412:44-0.46:097:23Waxing Gibbous12Wed
13Thu7:324.07:584.61:17-0.61:27-0.56:077:24Full Moon13Thu
14Fri8:224.18:474.62:09-0.62:11-0.66:057:25Full Moon14Fri
15Sat9:114.09:364.53:00-0.62:55-0.56:047:26Full Moon15Sat
16Sun10:013.910:254.33:46-0.53:37-0.36:027:27Waning Gibbous16Sun
17Mon10:513.611:164.04:29-0.34:19-0.16:017:28Waning Gibbous17Mon
18Tue11:433.45:100.05:020.15:597:29Waning Gibbous18Tue
19Wed12:093.612:363.15:530.35:470.45:587:30Waning Gibbous19Wed
20Thu1:033.31:313.06:440.56:420.75:567:31Third Quarter20Thu
21Fri1:573.02:252.87:570.77:540.85:557:32Third Quarter21Fri
22Sat2:512.83:202.89:210.79:300.85:537:33Third Quarter22Sat
23Sun3:492.74:192.810:150.710:380.75:527:34Third Quarter23Sun
24Mon4:472.75:142.910:550.511:250.55:507:36Waning Crescent24Mon
25Tue5:382.86:013.111:310.45:497:37Waning Crescent25Tue
26Wed6:212.96:413.312:070.312:070.25:487:38Waning Crescent26Wed
27Thu6:593.07:163.412:470.212:420.15:467:39Waning Crescent27Thu
28Fri7:363.17:513.61:270.01:18-0.15:457:40New Moon28Fri
29Sat8:133.28:273.72:07-0.11:55-0.15:447:41New Moon29Sat
30Sun8:513.39:043.72:46-0.22:32-0.25:427:42New Moon30Sun
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 9:04 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 13% 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 Crescent (13% 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