Tides Today & Tomorrow in Westerly, RI

TIDE TIMES for Monday, August 17, 2026
The tide is currently falling in Westerly, RI.
Next low tide : in 2h 16m at 8:28 pm (0.5 ft)
Next high tide (tomorrow) : 1:41 am (2.5 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 - Aug 1941

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:002.64:423.310:570.311:500.25:428:05First Quarter1Fri
2Sat5:082.65:433.411:570.35:438:03Waxing Gibbous2Sat
3Sun6:092.66:393.512:490.212:560.35:448:02Waxing Gibbous3Sun
4Mon7:052.77:313.51:460.11:540.25:458:01Waxing Gibbous4Mon
5Tue7:582.88:213.52:410.02:510.25:468:00Full Moon5Tue
6Wed8:492.99:103.53:32-0.13:430.25:477:59Full Moon6Wed
7Thu9:383.09:573.44:18-0.14:320.25:487:58Full Moon7Thu
8Fri10:253.110:433.35:030.05:200.25:497:56Full Moon8Fri
9Sat11:133.111:303.15:460.16:080.35:507:55Waning Gibbous9Sat
10Sun12:023.16:300.26:580.45:517:54Waning Gibbous10Sun
11Mon12:182.912:523.07:150.47:500.55:527:52Waning Gibbous11Mon
12Tue1:082.81:423.08:010.58:420.65:537:51Waning Gibbous12Tue
13Wed1:582.62:323.08:470.79:350.75:547:50Third Quarter13Wed
14Thu2:502.53:262.99:350.810:290.75:557:48Third Quarter14Thu
15Fri3:472.44:232.910:240.911:220.75:567:47Third Quarter15Fri
16Sat4:472.35:202.911:160.95:577:45Third Quarter16Sat
17Sun5:432.46:122.912:130.712:080.95:587:44Waning Crescent17Sun
18Mon6:332.56:583.01:010.612:580.85:597:43Waning Crescent18Mon
19Tue7:182.67:413.11:470.51:460.76:007:41Waning Crescent19Tue
20Wed8:022.78:223.22:320.42:340.66:017:40Waning Crescent20Wed
21Thu8:442.99:023.33:150.23:200.46:027:38New Moon21Thu
22Fri9:253.09:423.33:560.14:060.36:037:37New Moon22Fri
23Sat10:063.110:223.34:370.04:520.26:047:35New Moon23Sat
24Sun10:493.311:053.25:190.05:400.16:057:34Waxing Crescent24Sun
25Mon11:363.411:533.16:040.06:330.16:067:32Waxing Crescent25Mon
26Tue12:273.46:530.07:300.26:077:30Waxing Crescent26Tue
27Wed12:453.01:213.47:450.18:290.26:087:29Waxing Crescent27Wed
28Thu1:412.82:183.48:410.29:300.26:097:27First Quarter28Thu
29Fri2:412.73:193.39:400.310:310.36:107:26First Quarter29Fri
30Sat3:472.64:253.310:420.411:330.36:117:24First Quarter30Sat
31Sun4:562.65:303.311:450.46:127:22Waxing Gibbous31Sun
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 11:04 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