Tides Today & Tomorrow in Westerly, RI

TIDE TIMES for Monday, August 17, 2026
The tide is currently rising in Westerly, RI.
Next low tide : 8:28 pm (0.5 ft)
Next high tide : in 3h 45m at 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 - Mar 1942

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:562.79:112.53:090.03:42-0.27:226:37Full Moon1Sun
2Mon9:342.89:502.73:51-0.24:21-0.37:206:38Full Moon2Mon
3Tue10:112.810:292.84:34-0.35:01-0.37:196:39Full Moon3Tue
4Wed10:502.811:112.85:18-0.35:42-0.37:176:40Full Moon4Wed
5Thu11:322.711:562.96:06-0.36:27-0.37:166:42Waning Gibbous5Thu
6Fri12:182.66:59-0.37:16-0.27:146:43Waning Gibbous6Fri
7Sat12:462.91:102.57:55-0.28:10-0.17:126:44Waning Gibbous7Sat
8Sun1:412.92:062.38:54-0.29:080.07:116:45Third Quarter8Sun
9Mon2:402.83:082.29:56-0.110:090.07:096:46Third Quarter9Mon
10Tue3:462.84:172.210:58-0.111:130.07:076:47Third Quarter10Tue
11Wed4:562.85:262.312:00-0.17:066:48Waning Crescent11Wed
12Thu6:002.86:262.412:170.012:59-0.17:046:49Waning Crescent12Thu
13Fri6:562.87:202.51:17-0.11:55-0.27:026:51Waning Crescent13Fri
14Sat7:472.98:092.72:14-0.22:47-0.37:016:52Waning Crescent14Sat
15Sun8:352.98:562.83:08-0.33:35-0.36:596:53New Moon15Sun
16Mon9:202.99:412.93:57-0.34:18-0.36:576:54New Moon16Mon
17Tue10:042.810:252.94:42-0.35:00-0.26:566:55New Moon17Tue
18Wed10:472.711:082.95:26-0.35:40-0.16:546:56New Moon18Wed
19Thu11:322.611:542.86:11-0.26:210.16:526:57Waxing Crescent19Thu
20Fri12:192.56:570.07:050.36:516:58Waxing Crescent20Fri
21Sat12:422.71:082.37:460.17:510.46:496:59Waxing Crescent21Sat
22Sun1:322.61:592.28:360.28:400.66:477:00Waxing Crescent22Sun
23Mon2:242.52:522.19:270.39:320.76:467:02First Quarter23Mon
24Tue3:202.43:502.110:200.410:270.76:447:03First Quarter24Tue
25Wed4:222.44:492.111:130.411:220.66:427:04First Quarter25Wed
26Thu5:222.45:452.212:050.46:417:05First Quarter26Thu
27Fri6:142.56:332.412:150.612:530.36:397:06Waxing Gibbous27Fri
28Sat7:002.67:162.51:050.41:390.26:377:07Waxing Gibbous28Sat
29Sun7:422.77:572.71:540.22:230.16:367:08Waxing Gibbous29Sun
30Mon8:222.88:372.92:410.03:060.06:347:09Waxing Gibbous30Mon
31Tue9:022.99:173.13:27-0.23:48-0.26:327:10Full Moon31Tue
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 4:53 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