Tides Today & Tomorrow in Westerly, RI

TIDE TIMES for Monday, August 17, 2026
The tide is currently rising in Westerly, RI.
Next low tide : 8:28 pm (0.5 ft)
Next high tide : in 56m at 1:18 pm (3.2 ft)
Sunset today : 7:44 pm
Sunrise tomorrow : 5:58 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8455189
Common Questions About Tides

Westerly, RI Tides - Jan 1942

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:092.88:272.22:220.23:06-0.17:134:28Full Moon1Thu
2Fri8:492.89:092.33:000.13:43-0.27:134:29Full Moon2Fri
3Sat9:272.89:502.33:380.14:21-0.27:134:30Full Moon3Sat
4Sun10:052.810:322.34:160.15:00-0.27:134:31Waning Gibbous4Sun
5Mon10:442.711:162.34:590.15:43-0.27:134:31Waning Gibbous5Mon
6Tue11:232.65:460.26:29-0.27:134:32Waning Gibbous6Tue
7Wed12:022.312:052.56:390.27:16-0.17:134:33Waning Gibbous7Wed
8Thu12:482.412:512.47:350.28:05-0.17:134:34Third Quarter8Thu
9Fri1:372.41:422.38:340.28:56-0.17:134:35Third Quarter9Fri
10Sat2:322.52:442.29:350.19:50-0.17:124:36Third Quarter10Sat
11Sun3:332.73:522.210:360.010:46-0.17:124:37Third Quarter11Sun
12Mon4:332.94:542.211:36-0.211:43-0.27:124:39Waning Crescent12Mon
13Tue5:283.05:502.312:34-0.47:124:40Waning Crescent13Tue
14Wed6:203.26:432.412:39-0.31:30-0.57:114:41Waning Crescent14Wed
15Thu7:123.37:362.51:35-0.42:24-0.67:114:42New Moon15Thu
16Fri8:033.38:282.52:30-0.53:14-0.77:104:43New Moon16Fri
17Sat8:543.39:192.63:22-0.54:02-0.77:104:44New Moon17Sat
18Sun9:443.210:112.64:13-0.54:50-0.67:094:45Waxing Crescent18Sun
19Mon10:343.011:052.65:05-0.45:40-0.57:094:46Waxing Crescent19Mon
20Tue11:262.75:59-0.26:31-0.37:084:48Waxing Crescent20Tue
21Wed12:002.512:182.56:57-0.17:22-0.27:084:49Waxing Crescent21Wed
22Thu12:542.51:102.37:550.18:130.07:074:50First Quarter22Thu
23Fri1:492.42:052.18:530.29:050.27:064:51First Quarter23Fri
24Sat2:472.43:041.99:520.29:580.37:064:52First Quarter24Sat
25Sun3:472.44:041.910:490.210:500.37:054:54First Quarter25Sun
26Mon4:442.45:001.911:420.211:400.37:044:55Waxing Gibbous26Mon
27Tue5:342.55:491.912:310.17:034:56Waxing Gibbous27Tue
28Wed6:202.56:352.012:270.31:160.07:024:57Waxing Gibbous28Wed
29Thu7:032.67:192.11:120.21:57-0.17:014:59Waxing Gibbous29Thu
30Fri7:452.78:012.21:550.12:37-0.27:015:00Full Moon30Fri
31Sat8:252.78:422.32:350.03:15-0.37:005:01Full Moon31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8455189)

Common Questions About Westerly, RI Tides

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What time does the tide turn (slack tide) in Westerly, RI today?

Slack tide in Westerly, RI is approximately 4:53 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 Westerly, RI?

Westerly, RI is currently in a transitional phase. Tonight's moon is 27% 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 shifting between spring and neap.

What datum are Westerly, 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 Westerly, RI?

Tide predictions for Westerly, 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 Westerly, RI?

Tide data for Westerly, RI is sourced from NOAA Station #8455189. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8455189.

What is the moon phase in Westerly, RI tonight?

Tonight the moon over Westerly, RI is Waxing Crescent (27% illuminated). This places Westerly, RI in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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