Tides Today & Tomorrow in Castle Hill, RI

TIDE TIMES for Friday, July 17, 2026
The tide is currently falling in Castle Hill, RI.
Next low tide : in 1h 00m at 4:42 am (-0.1 ft)
Next high tide : 10:47 am (4.1 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 5:26 am
Moon phase : Waxing Crescent (14% illuminated)
Tide Station Location : Station #8453201
Common Questions About Tides

Castle Hill, RI Tides - Apr 2067

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:233.39:433.73:14-0.43:08-0.36:277:10Full Moon1Fri
2Sat10:073.210:273.73:51-0.33:45-0.36:267:11Waning Gibbous2Sat
3Sun10:553.111:173.64:30-0.24:25-0.26:247:12Waning Gibbous3Sun
4Mon11:483.05:12-0.15:10-0.16:227:13Waning Gibbous4Mon
5Tue12:123.512:453.06:010.16:020.16:217:14Third Quarter5Tue
6Wed1:113.41:443.07:050.37:080.36:197:16Third Quarter6Wed
7Thu2:133.42:463.18:410.48:370.46:177:17Third Quarter7Thu
8Fri3:173.33:503.310:120.310:210.26:167:18Third Quarter8Fri
9Sat4:233.44:563.511:070.111:320.06:147:19Waning Crescent9Sat
10Sun5:273.55:563.911:49-0.16:127:20Waning Crescent10Sun
11Mon6:243.76:494.112:27-0.212:27-0.26:117:21Waning Crescent11Mon
12Tue7:153.87:384.31:16-0.31:04-0.36:097:22New Moon12Tue
13Wed8:033.88:254.42:02-0.31:42-0.36:087:23New Moon13Wed
14Thu8:493.79:104.22:46-0.32:21-0.36:067:24New Moon14Thu
15Fri9:343.69:554.03:26-0.23:02-0.26:057:25Waxing Crescent15Fri
16Sat10:203.410:403.74:02-0.13:42-0.16:037:26Waxing Crescent16Sat
17Sun11:073.211:273.44:380.14:230.16:017:28Waxing Crescent17Sun
18Mon11:553.05:150.35:060.36:007:29Waxing Crescent18Mon
19Tue12:163.112:452.85:570.55:530.55:587:30First Quarter19Tue
20Wed1:052.81:362.76:500.76:480.75:577:31First Quarter20Wed
21Thu1:542.62:252.68:050.88:000.85:557:32First Quarter21Thu
22Fri2:432.53:172.69:220.89:220.85:547:33First Quarter22Fri
23Sat3:352.54:112.710:140.610:300.65:527:34Waxing Gibbous23Sat
24Sun4:302.55:042.910:550.511:220.45:517:35Waxing Gibbous24Sun
25Mon5:232.65:513.211:320.35:507:36Waxing Gibbous25Mon
26Tue6:082.86:333.412:070.212:070.15:487:37Waxing Gibbous26Tue
27Wed6:513.07:133.712:480.012:42-0.15:477:38Full Moon27Wed
28Thu7:343.27:543.91:30-0.11:19-0.25:457:39Full Moon28Thu
29Fri8:173.38:374.02:12-0.31:59-0.35:447:41Full Moon29Fri
30Sat9:023.49:224.12:55-0.32:41-0.35:437:42Full Moon30Sat
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 7:44 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 14% 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 (14% 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