Tides Today & Tomorrow in Castle Hill, RI

TIDE TIMES for Sunday, June 21, 2026
The tide is currently rising in Castle Hill, RI.
Next low tide : 7:43 am (0.4 ft)
Next high tide : in 40m at 1:22 am (3.4 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 - Apr 2022

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:413.79:004.02:32-0.32:26-0.26:277:10New Moon1Fri
2Sat9:223.59:413.93:09-0.32:58-0.26:267:11New Moon2Sat
3Sun10:033.310:213.73:45-0.23:32-0.26:247:12Waxing Crescent3Sun
4Mon10:443.111:013.44:190.04:070.06:227:13Waxing Crescent4Mon
5Tue11:272.811:423.14:550.14:440.16:217:14Waxing Crescent5Tue
6Wed12:122.65:330.45:240.36:197:15Waxing Crescent6Wed
7Thu12:252.81:002.46:170.66:090.66:177:17First Quarter7Thu
8Fri1:122.61:482.37:170.87:060.76:167:18First Quarter8Fri
9Sat2:022.52:402.38:550.98:200.86:147:19First Quarter9Sat
10Sun2:572.43:372.410:150.89:430.76:137:20First Quarter10Sun
11Mon3:592.54:372.611:030.610:490.56:117:21Waxing Gibbous11Mon
12Tue5:012.75:322.811:400.411:410.36:097:22Waxing Gibbous12Tue
13Wed5:522.96:183.212:130.26:087:23Waxing Gibbous13Wed
14Thu6:373.17:013.612:260.012:45-0.16:067:24Waxing Gibbous14Thu
15Fri7:203.47:433.91:10-0.21:19-0.36:057:25Full Moon15Fri
16Sat8:033.58:264.11:54-0.41:55-0.46:037:26Full Moon16Sat
17Sun8:493.69:114.32:40-0.52:35-0.56:027:27Full Moon17Sun
18Mon9:363.69:584.23:25-0.53:17-0.56:007:28Waning Gibbous18Mon
19Tue10:263.510:504.14:11-0.44:00-0.45:597:30Waning Gibbous19Tue
20Wed11:213.311:463.94:57-0.24:46-0.25:577:31Waning Gibbous20Wed
21Thu12:193.25:490.15:380.15:567:32Waning Gibbous21Thu
22Fri12:473.71:203.16:590.36:400.45:547:33Third Quarter22Fri
23Sat1:493.52:223.19:040.58:150.65:537:34Third Quarter23Sat
24Sun2:533.43:263.210:190.410:250.55:517:35Third Quarter24Sun
25Mon3:593.34:323.311:120.311:300.35:507:36Waning Crescent25Mon
26Tue5:043.35:333.511:520.25:487:37Waning Crescent26Tue
27Wed6:013.46:263.812:190.212:210.25:477:38Waning Crescent27Wed
28Thu6:503.47:123.91:000.112:450.15:467:39Waning Crescent28Thu
29Fri7:343.47:554.01:370.01:120.05:447:40New Moon29Fri
30Sat8:163.48:354.02:120.01:430.05:437:41New Moon30Sat
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 4:32 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