Tides Today & Tomorrow in Westerly, RI

TIDE TIMES for Friday, August 21, 2026
The tide is currently falling in Westerly, RI.
Next low tide (tomorrow) : in 1h 56m at 12:15 am (0.7 ft)
Next high tide (tomorrow) : 5:40 am (2.2 ft)
Sunset today : 7:38 pm
Sunrise tomorrow : 6:02 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8455189
Common Questions About Tides

Westerly, RI Tides - Sep 1930

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon4:432.35:113.011:240.96:137:21First Quarter1Mon
2Tue5:472.36:103.012:210.612:250.96:147:20Waxing Gibbous2Tue
3Wed6:392.47:003.01:150.61:210.86:157:18Waxing Gibbous3Wed
4Thu7:242.57:453.02:030.62:110.86:167:16Waxing Gibbous4Thu
5Fri8:062.68:263.02:460.62:550.76:177:15Waxing Gibbous5Fri
6Sat8:472.89:043.03:230.53:350.66:187:13Full Moon6Sat
7Sun9:272.99:423.03:570.44:120.56:197:11Full Moon7Sun
8Mon10:063.010:183.04:290.44:480.56:207:10Full Moon8Mon
9Tue10:443.110:552.95:000.45:260.56:217:08Full Moon9Tue
10Wed11:213.111:332.85:320.46:070.56:227:06Waning Gibbous10Wed
11Thu11:583.16:060.56:530.56:237:05Waning Gibbous11Thu
12Fri12:132.612:353.16:440.67:430.56:247:03Waning Gibbous12Fri
13Sat12:552.51:143.17:270.88:360.56:257:01Waning Gibbous13Sat
14Sun1:422.41:583.18:170.89:310.66:266:59Third Quarter14Sun
15Mon2:332.32:553.19:130.910:300.56:276:58Third Quarter15Mon
16Tue3:362.34:063.110:160.911:300.56:286:56Third Quarter16Tue
17Wed4:462.45:183.211:220.86:296:54Waning Crescent17Wed
18Thu5:492.56:183.312:270.412:260.66:306:53Waning Crescent18Thu
19Fri6:432.77:113.41:220.21:270.46:316:51Waning Crescent19Fri
20Sat7:353.08:013.52:140.12:260.26:326:49Waning Crescent20Sat
21Sun8:253.38:503.43:040.03:220.06:336:47New Moon21Sun
22Mon9:153.59:393.33:50-0.14:16-0.16:346:46New Moon22Mon
23Tue10:033.710:273.24:35-0.15:07-0.16:356:44New Moon23Tue
24Wed10:533.711:183.05:200.06:000.06:366:42Waxing Crescent24Wed
25Thu11:433.76:060.26:550.16:376:41Waxing Crescent25Thu
26Fri12:112.812:363.56:570.47:530.26:386:39Waxing Crescent26Fri
27Sat1:082.61:323.37:530.68:510.46:396:37Waxing Crescent27Sat
28Sun1:062.41:303.17:530.88:500.55:405:35First Quarter28Sun
29Mon2:062.32:333.08:550.99:500.65:415:34First Quarter29Mon
30Tue3:122.33:402.89:591.010:480.75:425:32First Quarter30Tue
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 2:57 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 65% 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 (65% 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