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 1h 27m 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 - Dec 1939

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:003.06:300.27:18-0.16:534:19Waning Gibbous1Fri
2Sat12:422.612:572.97:330.38:13-0.16:544:18Third Quarter2Sat
3Sun1:412.71:572.78:360.39:08-0.16:554:18Third Quarter3Sun
4Mon2:442.83:022.69:410.210:05-0.16:564:18Third Quarter4Mon
5Tue3:482.94:082.510:450.111:01-0.16:574:18Waning Crescent5Tue
6Wed4:473.15:072.411:460.011:55-0.16:584:18Waning Crescent6Wed
7Thu5:403.26:012.412:43-0.16:594:18Waning Crescent7Thu
8Fri6:293.36:512.512:49-0.11:38-0.27:004:18Waning Crescent8Fri
9Sat7:163.37:402.51:41-0.12:28-0.37:014:18New Moon9Sat
10Sun8:033.38:272.52:31-0.13:15-0.37:014:18New Moon10Sun
11Mon8:483.39:142.53:180.04:00-0.37:024:18New Moon11Mon
12Tue9:333.110:012.54:030.04:43-0.27:034:18New Moon12Tue
13Wed10:203.010:502.44:480.25:28-0.17:044:18Waxing Crescent13Wed
14Thu11:082.811:412.45:360.36:140.07:054:18Waxing Crescent14Thu
15Fri11:572.76:270.47:010.17:054:18Waxing Crescent15Fri
16Sat12:332.412:472.57:200.57:470.27:064:18Waxing Crescent16Sat
17Sun1:252.41:382.38:130.58:330.37:074:19First Quarter17Sun
18Mon2:192.42:322.29:080.59:190.47:074:19First Quarter18Mon
19Tue3:152.43:292.110:030.510:050.47:084:19First Quarter19Tue
20Wed4:102.54:242.010:560.410:520.47:094:20First Quarter20Wed
21Thu5:002.65:152.111:460.311:380.37:094:20Waxing Gibbous21Thu
22Fri5:442.76:002.112:340.27:104:21Waxing Gibbous22Fri
23Sat6:262.96:432.212:240.31:210.07:104:21Waxing Gibbous23Sat
24Sun7:073.07:252.31:110.12:06-0.27:114:22Waxing Gibbous24Sun
25Mon7:483.18:082.41:590.02:51-0.37:114:22Full Moon25Mon
26Tue8:303.28:522.52:45-0.13:35-0.57:114:23Full Moon26Tue
27Wed9:133.29:382.53:33-0.24:21-0.57:124:24Full Moon27Wed
28Thu9:583.210:282.64:22-0.25:08-0.57:124:24Waning Gibbous28Thu
29Fri10:483.011:232.65:15-0.25:59-0.57:124:25Waning Gibbous29Fri
30Sat11:422.96:14-0.26:52-0.47:134:26Waning Gibbous30Sat
31Sun12:212.712:382.77:16-0.17:50-0.47:134:27Third 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