Tides Today & Tomorrow in Castle Hill, RI

TIDE TIMES for Monday, August 3, 2026
The tide is currently falling in Castle Hill, RI.
Next low tide : in 3h 49m at 4:57 am (0.1 ft)
Next high tide : 11:39 am (3.5 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 5:42 am
Moon phase : Waning Gibbous (75% illuminated)
Tide Station Location : Station #8453201
Common Questions About Tides

Castle Hill, RI Tides - Feb 2080

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:173.33:532.710:230.29:35-0.26:565:01Waxing Gibbous1Thu
2Fri4:293.54:593.011:23-0.110:42-0.46:555:02Waxing Gibbous2Fri
3Sat5:313.85:573.312:16-0.36:545:03Waxing Gibbous3Sat
4Sun6:274.06:503.61:06-0.46:535:05Full Moon4Sun
5Mon7:184.27:413.912:41-0.71:53-0.66:525:06Full Moon5Mon
6Tue8:074.28:314.01:37-0.82:34-0.66:515:07Full Moon6Tue
7Wed8:554.09:204.02:30-0.73:10-0.66:505:08Waning Gibbous7Wed
8Thu9:423.710:103.83:18-0.63:42-0.56:485:10Waning Gibbous8Thu
9Fri10:313.411:013.64:03-0.34:14-0.36:475:11Waning Gibbous9Fri
10Sat11:213.011:523.44:480.04:49-0.16:465:12Waning Gibbous10Sat
11Sun12:112.75:380.35:290.26:455:13Third Quarter11Sun
12Mon12:443.11:032.46:430.66:190.46:435:15Third Quarter12Mon
13Tue1:382.81:582.28:260.77:220.66:425:16Third Quarter13Tue
14Wed2:392.63:022.19:430.78:380.66:415:17Third Quarter14Wed
15Thu3:482.64:092.210:330.69:490.56:405:18Waning Crescent15Thu
16Fri4:502.75:052.311:130.510:440.36:385:20Waning Crescent16Fri
17Sat5:372.85:492.511:500.311:310.16:375:21Waning Crescent17Sat
18Sun6:163.06:282.712:260.16:355:22Waning Crescent18Sun
19Mon6:503.17:032.912:140.01:020.06:345:23New Moon19Mon
20Tue7:223.27:383.112:56-0.21:34-0.26:335:25New Moon20Tue
21Wed7:543.38:123.21:37-0.32:04-0.36:315:26New Moon21Wed
22Thu8:293.28:483.22:15-0.32:32-0.36:305:27New Moon22Thu
23Fri9:063.29:263.32:51-0.33:00-0.46:285:28Waxing Crescent23Fri
24Sat9:473.010:083.33:26-0.23:31-0.36:275:29Waxing Crescent24Sat
25Sun10:342.910:553.34:03-0.14:06-0.36:255:31Waxing Crescent25Sun
26Mon11:252.711:483.24:460.14:47-0.26:245:32First Quarter26Mon
27Tue12:212.65:390.35:380.06:225:33First Quarter27Tue
28Wed12:463.21:212.56:550.46:440.16:215:34First Quarter28Wed
29Thu1:503.22:272.69:070.48:050.16:195:35First Quarter29Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8453201)

Common Questions About Castle Hill, RI Tides

Show All
What time does the tide turn (slack tide) in Castle Hill, RI today?

Slack tide in Castle Hill, RI is approximately 8:18 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 transitional phase. Tonight's moon is 75% 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 shifting between spring and neap.

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 (75% illuminated). This places Castle Hill, RI in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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