Tides Today & Tomorrow in Castle Hill, RI

TIDE TIMES for Saturday, August 15, 2026
The tide is currently rising in Castle Hill, RI.
Next low tide : 4:18 pm (0.1 ft)
Next high tide : in 5h 39m at 10:21 am (4.2 ft)
Sunset today : 7:45 pm
Sunrise tomorrow : 5:54 am
Moon phase : Waxing Crescent (11% illuminated)
Tide Station Location : Station #8453201
Common Questions About Tides

Castle Hill, RI Tides - Mar 2099

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:432.82:232.48:470.68:070.26:185:36First Quarter1Sun
2Mon2:542.93:342.610:080.49:260.06:175:37Waxing Gibbous2Mon
3Tue4:073.24:402.911:010.110:34-0.36:155:38Waxing Gibbous3Tue
4Wed5:103.55:373.411:46-0.211:33-0.56:145:39Waxing Gibbous4Wed
5Thu6:043.96:293.812:28-0.56:125:40Full Moon5Thu
6Fri6:544.17:184.212:29-0.81:10-0.76:105:42Full Moon6Fri
7Sat7:424.18:074.41:24-0.91:51-0.86:095:43Full Moon7Sat
8Sun9:314.09:564.43:17-0.93:30-0.87:076:44Waning Gibbous8Sun
9Mon10:193.810:464.24:06-0.74:08-0.77:056:45Waning Gibbous9Mon
10Tue11:103.511:394.04:53-0.54:47-0.57:046:46Waning Gibbous10Tue
11Wed12:033.15:39-0.15:27-0.17:026:47Waning Gibbous11Wed
12Thu12:343.612:592.96:330.36:130.27:016:48Third Quarter12Thu
13Fri1:323.31:572.68:110.67:100.56:596:50Third Quarter13Fri
14Sat2:333.02:582.510:040.78:370.76:576:51Third Quarter14Sat
15Sun3:402.84:052.511:070.710:430.76:566:52Third Quarter15Sun
16Mon4:512.75:122.611:510.611:350.56:546:53Waning Crescent16Mon
17Tue5:512.86:062.712:230.56:526:54Waning Crescent17Tue
18Wed6:372.96:512.912:120.412:480.36:506:55Waning Crescent18Wed
19Thu7:153.07:293.112:470.21:130.26:496:56Waning Crescent19Thu
20Fri7:493.18:033.31:240.01:410.06:476:57New Moon20Fri
21Sat8:213.18:353.32:02-0.12:11-0.16:456:58New Moon21Sat
22Sun8:533.19:063.42:41-0.22:41-0.26:446:59New Moon22Sun
23Mon9:253.09:373.43:17-0.23:12-0.26:427:01New Moon23Mon
24Tue10:002.910:113.33:51-0.13:42-0.16:407:02Waxing Crescent24Tue
25Wed10:382.810:483.24:230.04:14-0.16:397:03Waxing Crescent25Wed
26Thu11:212.711:313.14:560.14:480.06:377:04Waxing Crescent26Thu
27Fri12:102.55:320.35:280.16:357:05Waxing Crescent27Fri
28Sat12:233.01:052.56:180.56:180.36:347:06First Quarter28Sat
29Sun1:223.02:032.57:260.67:240.46:327:07First Quarter29Sun
30Mon2:253.03:052.69:200.68:480.46:307:08First Quarter30Mon
31Tue3:333.14:122.910:430.410:150.26:297:09Waxing Gibbous31Tue
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 1:19 pm — 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 11% 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 (11% 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