Tides Today & Tomorrow in Castle Hill, RI

TIDE TIMES for Monday, August 10, 2026
The tide is currently rising in Castle Hill, RI.
Next low tide (tomorrow) : 1:22 am (0.1 ft)
Next high tide : in 1h 37m at 6:38 pm (4.2 ft)
Sunset today : 7:52 pm
Sunrise tomorrow : 5:49 am
Moon phase : Waning Crescent (6% illuminated)
Tide Station Location : Station #8453201
Common Questions About Tides

Castle Hill, RI Tides - May 2092

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:453.25:153.411:330.45:407:44Waning Crescent1Thu
2Fri5:423.26:083.612:040.411:59 AM0.45:397:45Waning Crescent2Fri
3Sat6:323.26:543.712:380.312:200.35:387:46Waning Crescent3Sat
4Sun7:153.37:353.71:080.212:470.25:377:47New Moon4Sun
5Mon7:553.38:133.71:390.11:200.15:357:48New Moon5Mon
6Tue8:333.38:483.72:150.11:570.15:347:49New Moon6Tue
7Wed9:103.29:233.62:520.02:360.15:337:50New Moon7Wed
8Thu9:473.19:563.43:300.03:150.15:327:51Waxing Crescent8Thu
9Fri10:253.010:313.34:070.13:540.25:317:52Waxing Crescent9Fri
10Sat11:062.811:103.14:420.24:320.35:307:53Waxing Crescent10Sat
11Sun11:492.711:533.05:180.45:120.45:297:54Waxing Crescent11Sun
12Mon12:362.75:560.55:560.65:287:55Waxing Crescent12Mon
13Tue12:412.91:242.76:430.66:500.65:277:56First Quarter13Tue
14Wed1:332.92:152.97:430.67:580.75:267:57First Quarter14Wed
15Thu2:273.03:093.18:500.59:130.55:257:58First Quarter15Thu
16Fri3:263.04:083.39:500.310:240.35:247:59Waxing Gibbous16Fri
17Sat4:293.25:083.710:430.111:240.05:238:00Waxing Gibbous17Sat
18Sun5:323.46:054.111:31-0.25:228:01Waxing Gibbous18Sun
19Mon6:293.66:584.412:18-0.212:18-0.45:218:02Waxing Gibbous19Mon
20Tue7:233.87:494.71:11-0.41:06-0.55:208:03Full Moon20Tue
21Wed8:154.08:414.82:05-0.51:55-0.65:208:04Full Moon21Wed
22Thu9:084.09:334.83:00-0.52:47-0.55:198:05Full Moon22Thu
23Fri10:014.010:274.63:54-0.53:39-0.45:188:06Waning Gibbous23Fri
24Sat10:563.911:224.34:45-0.34:31-0.15:178:07Waning Gibbous24Sat
25Sun11:533.75:360.05:240.25:178:08Waning Gibbous25Sun
26Mon12:204.012:523.66:370.26:250.55:168:08Third Quarter26Mon
27Tue1:173.71:493.58:010.48:110.75:168:09Third Quarter27Tue
28Wed2:143.42:473.49:130.59:540.75:158:10Third Quarter28Wed
29Thu3:113.23:463.410:030.510:530.75:148:11Third Quarter29Thu
30Fri4:103.14:453.410:370.511:360.65:148:12Waning Crescent30Fri
31Sat5:083.05:393.511:040.55:148:12Waning Crescent31Sat
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 10:00 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 6% 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 Waning Crescent (6% 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