Tides Today & Tomorrow in Castle Hill, RI

TIDE TIMES for Friday, July 31, 2026
The tide is currently rising in Castle Hill, RI.
Next low tide (tomorrow) : 3:57 am (0.1 ft)
Next high tide : in 4h 32m at 9:47 pm (3.6 ft)
Sunset today : 8:04 pm
Sunrise tomorrow : 5:39 am
Moon phase : Waning Gibbous (96% illuminated)
Tide Station Location : Station #8453201
Common Questions About Tides

Castle Hill, RI Tides - Jul 2077

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:192.54:573.210:220.511:350.65:168:23Waxing Gibbous1Thu
2Fri5:172.65:483.411:080.45:168:22Waxing Gibbous2Fri
3Sat6:112.86:363.612:200.411:53 AM0.25:178:22Waxing Gibbous3Sat
4Sun7:003.07:223.91:040.212:390.15:178:22Full Moon4Sun
5Mon7:483.28:094.01:500.11:250.05:188:22Full Moon5Mon
6Tue8:363.48:574.22:370.02:15-0.15:198:21Full Moon6Tue
7Wed9:253.59:464.23:23-0.13:06-0.15:198:21Full Moon7Wed
8Thu10:153.610:374.14:07-0.13:57-0.15:208:21Waning Gibbous8Thu
9Fri11:083.711:304.04:49-0.14:490.05:218:20Waning Gibbous9Fri
10Sat12:033.85:31-0.15:440.25:218:20Waning Gibbous10Sat
11Sun12:253.812:593.86:180.06:510.45:228:19Third Quarter11Sun
12Mon1:203.61:553.97:100.18:280.65:238:19Third Quarter12Mon
13Tue2:163.42:523.98:090.210:030.65:248:18Third Quarter13Tue
14Wed3:153.33:533.99:090.311:100.55:248:18Waning Crescent14Wed
15Thu4:183.14:573.910:070.35:258:17Waning Crescent15Thu
16Fri5:233.15:574.012:060.411:01 AM0.35:268:16Waning Crescent16Fri
17Sat6:213.26:524.012:550.411:50 AM0.35:278:16Waning Crescent17Sat
18Sun7:133.37:414.01:400.412:370.35:288:15New Moon18Sun
19Mon8:013.48:274.02:220.31:230.35:298:14New Moon19Mon
20Tue8:473.59:103.92:580.32:110.35:308:13New Moon20Tue
21Wed9:313.59:513.73:290.32:580.35:308:13New Moon21Wed
22Thu10:143.410:313.53:590.33:430.35:318:12Waxing Crescent22Thu
23Fri10:563.311:103.34:290.34:260.45:328:11Waxing Crescent23Fri
24Sat11:393.211:483.15:000.45:080.55:338:10Waxing Crescent24Sat
25Sun12:213.15:340.55:530.75:348:09Waxing Crescent25Sun
26Mon12:272.91:013.16:100.56:440.85:358:08First Quarter26Mon
27Tue1:072.71:413.06:510.67:450.95:368:07First Quarter27Tue
28Wed1:502.62:233.07:390.78:560.95:378:06First Quarter28Wed
29Thu2:362.53:113.18:340.710:050.95:388:05First Quarter29Thu
30Fri3:322.54:083.29:320.611:040.75:398:04Waxing Gibbous30Fri
31Sat4:352.65:103.410:300.511:530.55:408:03Waxing Gibbous31Sat
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 12:52 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 96% 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 (96% 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