Tides Today & Tomorrow in Westerly, RI

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently rising in Westerly, RI.
Next low tide : 9:25 pm (0.6 ft)
Next high tide : in 4h 24m at 2:09 pm (3.2 ft)
Sunset today : 7:42 pm
Sunrise tomorrow : 5:59 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8455189
Common Questions About Tides

Westerly, RI Tides - Mar 1940

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:362.73:052.19:450.010:020.16:215:37Third Quarter1Fri
2Sat3:452.64:132.110:470.011:050.16:205:39Third Quarter2Sat
3Sun4:492.55:132.111:450.16:185:40Waning Crescent3Sun
4Mon5:432.56:032.212:030.112:390.16:165:41Waning Crescent4Mon
5Tue6:302.56:472.312:570.11:270.16:155:42Waning Crescent5Tue
6Wed7:122.67:292.51:450.02:100.06:135:43Waning Crescent6Wed
7Thu7:522.68:102.62:280.02:470.06:125:44New Moon7Thu
8Fri8:322.68:502.63:06-0.13:220.06:105:45New Moon8Fri
9Sat9:102.69:302.73:43-0.13:550.06:085:47New Moon9Sat
10Sun9:502.510:102.74:19-0.14:280.16:075:48New Moon10Sun
11Mon10:302.510:512.64:580.05:040.26:055:49Waxing Crescent11Mon
12Tue11:132.411:332.65:390.05:430.36:035:50Waxing Crescent12Tue
13Wed11:562.36:250.16:260.36:025:51Waxing Crescent13Wed
14Thu12:152.512:402.27:150.27:140.46:005:52Waxing Crescent14Thu
15Fri12:592.51:272.18:060.28:050.55:585:53First Quarter15Fri
16Sat1:482.52:202.19:010.29:020.45:575:54First Quarter16Sat
17Sun2:482.53:212.19:570.210:020.45:555:56First Quarter17Sun
18Mon3:542.64:212.210:530.111:020.25:535:57First Quarter18Mon
19Tue4:532.75:152.511:480.05:525:58Waxing Gibbous19Tue
20Wed5:452.96:052.712:000.012:40-0.25:505:59Waxing Gibbous20Wed
21Thu6:343.06:543.012:57-0.21:31-0.35:486:00Waxing Gibbous21Thu
22Fri7:233.17:433.21:52-0.42:20-0.55:476:01Full Moon22Fri
23Sat8:123.18:333.42:46-0.63:08-0.55:456:02Full Moon23Sat
24Sun9:013.19:233.53:37-0.73:56-0.55:436:03Full Moon24Sun
25Mon9:523.010:153.44:29-0.74:45-0.45:416:04Waning Gibbous25Mon
26Tue10:452.811:093.35:23-0.65:37-0.35:406:05Waning Gibbous26Tue
27Wed11:412.76:19-0.46:34-0.15:386:06Waning Gibbous27Wed
28Thu12:073.112:382.57:18-0.27:340.15:366:07Waning Gibbous28Thu
29Fri1:062.91:372.48:170.08:360.35:356:09Third Quarter29Fri
30Sat2:072.72:402.39:170.19:390.45:336:10Third Quarter30Sat
31Sun3:132.63:462.310:170.210:420.45:316:11Third Quarter31Sun
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 5:47 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 36% 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 First Quarter (36% 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