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 05m 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 - Sep 1941

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:592.76:283.312:330.212:460.46:137:21Waxing Gibbous1Mon
2Tue6:552.87:193.31:290.21:440.36:147:19Waxing Gibbous2Tue
3Wed7:452.98:073.32:220.22:400.36:157:18Waxing Gibbous3Wed
4Thu8:333.08:523.23:110.13:300.26:167:16Full Moon4Thu
5Fri9:183.19:363.23:560.14:170.26:177:14Full Moon5Fri
6Sat10:013.210:193.14:370.25:000.36:187:13Full Moon6Sat
7Sun10:453.211:023.05:160.35:440.36:197:11Full Moon7Sun
8Mon11:293.211:482.95:550.46:280.46:207:09Waning Gibbous8Mon
9Tue12:163.16:350.67:160.56:217:07Waning Gibbous9Tue
10Wed12:362.71:043.17:180.78:050.66:227:06Waning Gibbous10Wed
11Thu1:262.61:543.08:040.88:550.76:237:04Waning Gibbous11Thu
12Fri2:182.52:462.98:520.99:470.76:247:02Third Quarter12Fri
13Sat3:122.43:422.89:431.010:390.76:257:01Third Quarter13Sat
14Sun4:112.44:412.810:381.011:320.76:266:59Third Quarter14Sun
15Mon5:092.45:362.911:330.96:276:57Third Quarter15Mon
16Tue6:012.56:253.012:210.612:250.86:286:55Waning Crescent16Tue
17Wed6:472.77:083.11:090.51:160.76:296:54Waning Crescent17Wed
18Thu7:292.97:493.21:540.42:060.56:306:52Waning Crescent18Thu
19Fri8:113.18:303.32:390.22:550.36:316:50New Moon19Fri
20Sat8:523.39:123.33:230.13:440.16:326:49New Moon20Sat
21Sun9:353.59:553.34:060.04:320.06:336:47New Moon21Sun
22Mon10:203.610:413.24:50-0.15:21-0.16:346:45New Moon22Mon
23Tue11:083.711:313.15:360.06:14-0.16:356:43Waxing Crescent23Tue
24Wed12:003.76:260.07:110.06:366:42Waxing Crescent24Wed
25Thu12:273.012:583.67:210.28:100.16:376:40Waxing Crescent25Thu
26Fri1:262.81:583.58:210.39:110.26:386:38First Quarter26Fri
27Sat2:282.73:003.39:240.410:130.26:396:37First Quarter27Sat
28Sun2:342.73:083.29:280.510:140.35:405:35First Quarter28Sun
29Mon3:442.74:153.110:330.511:130.35:415:33Waxing Gibbous29Mon
30Tue4:492.85:133.111:350.55:425:31Waxing Gibbous30Tue
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