Tides Today & Tomorrow in Castle Hill, RI

TIDE TIMES for Thursday, June 18, 2026
The tide is currently rising in Castle Hill, RI.
Next low tide (tomorrow) : 5:59 am (0.1 ft)
Next high tide : in 5h 06m at 11:33 pm (4.0 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:11 am
Moon phase : Waxing Crescent (17% illuminated)
Tide Station Location : Station #8453201
Common Questions About Tides

Castle Hill, RI Tides - Mar 2026

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:573.76:173.612:40-0.26:195:35Full Moon1Sun
2Mon6:453.87:043.812:22-0.31:13-0.36:175:37Full Moon2Mon
3Tue7:283.77:483.91:08-0.41:41-0.36:165:38Full Moon3Tue
4Wed8:103.68:313.91:50-0.42:07-0.36:145:39Full Moon4Wed
5Thu8:513.49:123.72:29-0.42:35-0.36:135:40Waning Gibbous5Thu
6Fri9:313.29:533.53:05-0.23:05-0.26:115:41Waning Gibbous6Fri
7Sat10:122.910:343.23:41-0.13:38-0.16:095:42Waning Gibbous7Sat
8Sun11:542.65:180.15:140.17:086:44Waning Gibbous8Sun
9Mon12:172.912:382.45:590.45:540.37:066:45Third Quarter9Mon
10Tue1:022.71:242.26:480.66:420.57:046:46Third Quarter10Tue
11Wed1:502.52:142.17:590.87:460.77:036:47Third Quarter11Wed
12Thu2:442.43:102.19:410.89:090.77:016:48Third Quarter12Thu
13Fri3:482.44:152.210:510.710:280.56:596:49Waning Crescent13Fri
14Sat4:552.55:182.411:370.511:270.36:586:50Waning Crescent14Sat
15Sun5:482.86:082.712:150.26:566:51Waning Crescent15Sun
16Mon6:323.06:513.112:140.112:480.06:546:53Waning Crescent16Mon
17Tue7:133.37:323.512:58-0.21:21-0.36:536:54New Moon17Tue
18Wed7:533.58:143.71:41-0.41:55-0.56:516:55New Moon18Wed
19Thu8:363.68:564.02:25-0.52:31-0.66:496:56New Moon19Thu
20Fri9:203.69:414.03:09-0.63:08-0.66:486:57New Moon20Fri
21Sat10:073.510:284.03:53-0.53:47-0.66:466:58Waxing Crescent21Sat
22Sun10:573.311:203.94:36-0.44:29-0.56:446:59Waxing Crescent22Sun
23Mon11:523.15:23-0.15:14-0.36:437:00Waxing Crescent23Mon
24Tue12:173.712:513.06:180.26:060.06:417:01First Quarter24Tue
25Wed1:193.51:522.98:030.47:120.36:397:02First Quarter25Wed
26Thu2:233.32:562.910:030.48:490.46:387:04First Quarter26Thu
27Fri3:323.24:043.011:070.310:450.36:367:05Waxing Gibbous27Fri
28Sat4:433.25:103.211:560.211:490.26:347:06Waxing Gibbous28Sat
29Sun5:463.36:083.512:350.16:327:07Waxing Gibbous29Sun
30Mon6:383.46:583.712:360.01:060.06:317:08Waxing Gibbous30Mon
31Tue7:233.57:423.91:16-0.11:30-0.16:297:09Full Moon31Tue
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 2:46 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 17% 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 (17% 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