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 3h 14m at 7:40 am (0.4 ft)
Next high tide : 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 - Sep 1942

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:112.62:443.09:040.79:540.66:137:21Third Quarter1Tue
2Wed3:072.43:412.99:570.910:500.76:147:20Third Quarter2Wed
3Thu4:072.44:412.910:520.911:440.76:157:18Third Quarter3Thu
4Fri5:072.45:392.911:471.06:167:16Third Quarter4Fri
5Sat6:022.56:302.912:340.712:380.96:177:15Waning Crescent5Sat
6Sun6:502.67:153.01:210.61:260.86:187:13Waning Crescent6Sun
7Mon7:352.77:583.02:050.52:120.76:197:11Waning Crescent7Mon
8Tue8:172.98:383.12:460.42:550.66:207:10Waning Crescent8Tue
9Wed8:583.09:173.13:250.33:370.46:217:08New Moon9Wed
10Thu9:373.19:543.14:030.24:180.36:227:06New Moon10Thu
11Fri10:163.210:313.14:410.25:010.36:237:04New Moon11Fri
12Sat10:553.311:103.05:200.25:460.26:247:03Waxing Crescent12Sat
13Sun11:363.311:542.96:010.26:360.26:257:01Waxing Crescent13Sun
14Mon12:233.46:480.37:300.36:266:59Waxing Crescent14Mon
15Tue12:432.81:133.47:390.48:270.36:276:58Waxing Crescent15Tue
16Wed1:382.72:093.38:350.49:260.36:286:56First Quarter16Wed
17Thu2:372.63:103.39:350.510:270.36:296:54First Quarter17Thu
18Fri3:432.64:173.310:370.511:280.36:306:52First Quarter18Fri
19Sat4:532.65:233.311:410.56:316:51Waxing Gibbous19Sat
20Sun5:562.86:223.312:270.212:430.46:326:49Waxing Gibbous20Sun
21Mon6:512.97:143.31:220.11:420.36:336:47Waxing Gibbous21Mon
22Tue7:423.18:033.32:160.12:380.26:346:46Waxing Gibbous22Tue
23Wed8:303.38:513.33:060.03:300.16:356:44Full Moon23Wed
24Thu9:173.49:373.23:520.04:190.06:366:42Full Moon24Thu
25Fri10:033.410:223.14:360.15:060.16:376:40Full Moon25Fri
26Sat10:483.411:083.05:180.25:530.16:386:39Waning Gibbous26Sat
27Sun11:343.311:572.86:000.46:410.36:396:37Waning Gibbous27Sun
28Mon12:233.26:450.67:320.46:406:35Waning Gibbous28Mon
29Tue12:482.71:143.17:330.88:230.56:416:34Waning Gibbous29Tue
30Wed1:412.62:063.08:240.99:160.66:426:32Third Quarter30Wed
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 10:29 am — 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