Tides Today & Tomorrow in Westerly, RI

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently rising in Westerly, RI.
Next low tide (tomorrow) : 9:21 am (0.8 ft)
Next high tide (tomorrow) : in 3h 03m at 2:35 am (2.3 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 - Oct 1938

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:212.42:472.89:101.09:520.75:435:30First Quarter1Sat
2Sun3:222.53:482.810:071.010:430.75:445:29First Quarter2Sun
3Mon4:212.54:432.811:010.911:300.75:455:27Waxing Gibbous3Mon
4Tue5:122.75:312.811:510.85:465:25Waxing Gibbous4Tue
5Wed5:572.86:142.812:130.612:370.75:475:23Waxing Gibbous5Wed
6Thu6:383.06:542.912:530.51:220.55:485:22Waxing Gibbous6Thu
7Fri7:183.17:342.91:330.52:050.45:495:20Full Moon7Fri
8Sat7:563.38:122.92:110.42:470.25:515:19Full Moon8Sat
9Sun8:333.48:502.92:490.33:290.15:525:17Full Moon9Sun
10Mon9:103.49:292.83:280.34:120.15:535:15Full Moon10Mon
11Tue9:493.510:122.84:090.34:590.15:545:14Waning Gibbous11Tue
12Wed10:333.511:012.74:540.35:500.15:555:12Waning Gibbous12Wed
13Thu11:243.411:562.75:460.46:460.25:565:10Waning Gibbous13Thu
14Fri12:223.36:450.57:430.25:575:09Third Quarter14Fri
15Sat12:552.61:233.27:470.58:420.25:585:07Third Quarter15Sat
16Sun1:582.62:293.18:520.59:410.25:595:06Third Quarter16Sun
17Mon3:062.73:373.09:580.510:390.26:005:04Third Quarter17Mon
18Tue4:132.94:403.011:030.411:340.16:025:03Waning Crescent18Tue
19Wed5:113.15:353.012:040.36:035:01Waning Crescent19Wed
20Thu6:023.36:253.012:270.11:010.26:045:00Waning Crescent20Thu
21Fri6:493.47:122.91:170.11:550.16:054:58New Moon21Fri
22Sat7:353.57:592.92:060.12:450.06:064:57New Moon22Sat
23Sun8:203.68:442.82:510.13:310.06:074:55New Moon23Sun
24Mon9:043.59:302.73:350.24:150.06:084:54New Moon24Mon
25Tue9:483.410:172.74:180.45:000.16:104:52Waxing Crescent25Tue
26Wed10:353.311:072.65:020.55:470.26:114:51Waxing Crescent26Wed
27Thu11:263.111:592.55:490.76:360.46:124:50Waxing Crescent27Thu
28Fri12:183.06:410.87:260.56:134:48Waxing Crescent28Fri
29Sat12:532.51:122.87:360.98:170.66:144:47First Quarter29Sat
30Sun1:482.42:072.78:310.99:060.66:164:46First Quarter30Sun
31Mon2:462.53:042.69:270.99:550.66:174:44First Quarter31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8455189)

Common Questions About Westerly, RI Tides

Show All
What time does the tide turn (slack tide) in Westerly, RI today?

Slack tide in Westerly, RI is approximately 5:58 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 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