Tides Today & Tomorrow in Castle Hill, RI

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in Castle Hill, RI.
Next low tide : in 5h 50m at 7:43 am (0.4 ft)
Next high tide : 1:57 pm (3.7 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:11 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8453201
Common Questions About Tides

Castle Hill, RI Tides - Sep 2030

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:424.111:033.64:00-0.24:370.06:117:18Waxing Crescent1Sun
2Mon11:344.011:583.44:40-0.15:230.26:127:17Waxing Crescent2Mon
3Tue12:304.05:240.06:180.56:137:15First Quarter3Tue
4Wed12:563.31:293.96:160.37:370.76:147:13First Quarter4Wed
5Thu1:563.22:303.87:210.59:450.76:157:12First Quarter5Thu
6Fri2:583.23:353.88:460.610:560.66:167:10Waxing Gibbous6Fri
7Sat4:053.34:433.810:230.511:470.46:177:08Waxing Gibbous7Sat
8Sun5:113.55:453.911:340.36:187:07Waxing Gibbous8Sun
9Mon6:103.86:394.112:290.312:260.26:207:05Waxing Gibbous9Mon
10Tue7:024.07:284.11:030.21:120.16:217:03Full Moon10Tue
11Wed7:504.28:134.11:340.11:550.16:227:01Full Moon11Wed
12Thu8:354.38:564.02:040.02:360.16:237:00Full Moon12Thu
13Fri9:184.29:383.82:370.03:160.16:246:58Full Moon13Fri
14Sat10:004.010:203.53:110.13:530.26:256:56Waning Gibbous14Sat
15Sun10:423.811:033.33:470.14:310.46:266:55Waning Gibbous15Sun
16Mon11:253.511:473.04:250.35:090.66:276:53Waning Gibbous16Mon
17Tue12:093.25:040.45:520.86:286:51Waning Gibbous17Tue
18Wed12:342.812:553.05:470.66:451.06:296:49Third Quarter18Wed
19Thu1:222.71:432.96:370.88:071.16:306:48Third Quarter19Thu
20Fri2:112.62:322.87:410.99:411.16:316:46Third Quarter20Fri
21Sat3:032.63:252.88:570.910:360.96:326:44Third Quarter21Sat
22Sun4:002.74:242.910:080.811:170.76:336:42Waning Crescent22Sun
23Mon4:572.95:193.111:050.611:510.46:346:41Waning Crescent23Mon
24Tue5:483.26:063.311:530.36:356:39Waning Crescent24Tue
25Wed6:333.66:513.612:240.212:370.16:366:37Waning Crescent25Wed
26Thu7:163.97:343.812:570.01:20-0.16:376:36New Moon26Thu
27Fri8:004.28:193.91:33-0.22:05-0.26:386:34New Moon27Fri
28Sat8:444.49:063.92:11-0.32:51-0.36:396:32New Moon28Sat
29Sun9:314.49:553.82:52-0.43:38-0.26:406:30Waxing Crescent29Sun
30Mon10:214.410:473.73:35-0.34:24-0.16:416:29Waxing Crescent30Mon
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 10:50 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 neap phase. Tonight's moon is 48% 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 minimum.

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 First Quarter (48% illuminated). This places Castle Hill, RI in a neap tide cycle, so tidal ranges are near their weekly minimum 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