Tides Today & Tomorrow in Bristol, RI

TIDE TIMES for Thursday, August 20, 2026
The tide is currently rising in Bristol, RI.
Next low tide : 6:56 am (0.9 ft)
Next high tide : in 1h 23m at 2:13 am (3.3 ft)
Sunset today : 7:37 pm
Sunrise tomorrow : 5:59 am
Moon phase : First Quarter (55% illuminated)
Tide Station Location : Station #8451929
Common Questions About Tides

Bristol, RI Tides - Mar 1977

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:173.24:453.210:320.310:130.16:195:35Waxing Gibbous1Tue
2Wed5:113.55:353.611:110.111:01-0.26:175:36Waxing Gibbous2Wed
3Thu5:573.96:204.011:47-0.211:46-0.56:165:37Waxing Gibbous3Thu
4Fri6:404.27:044.412:23-0.46:145:38Full Moon4Fri
5Sat7:234.57:484.712:31-0.712:59-0.66:135:40Full Moon5Sat
6Sun8:084.68:334.91:17-0.81:37-0.86:115:41Full Moon6Sun
7Mon8:544.79:205.02:03-0.92:16-0.86:095:42Waning Gibbous7Mon
8Tue9:424.610:094.92:48-0.82:56-0.86:085:43Waning Gibbous8Tue
9Wed10:344.411:034.83:33-0.63:38-0.66:065:44Waning Gibbous9Wed
10Thu11:304.14:21-0.34:25-0.36:045:45Waning Gibbous10Thu
11Fri12:004.612:283.95:180.05:190.06:035:47Third Quarter11Fri
12Sat1:004.41:283.86:460.36:300.26:015:48Third Quarter12Sat
13Sun2:024.22:323.78:520.48:160.35:595:49Third Quarter13Sun
14Mon3:094.13:393.89:580.39:540.25:585:50Waning Crescent14Mon
15Tue4:174.24:444.010:480.210:500.15:565:51Waning Crescent15Tue
16Wed5:184.35:414.311:280.011:34-0.15:545:52Waning Crescent16Wed
17Thu6:094.46:304.511:59-0.15:535:53Waning Crescent17Thu
18Fri6:554.57:154.712:12-0.212:24-0.15:515:54New Moon18Fri
19Sat7:384.57:574.712:48-0.212:52-0.25:495:55New Moon19Sat
20Sun8:184.48:374.61:24-0.31:24-0.35:485:57New Moon20Sun
21Mon8:584.29:164.42:00-0.31:58-0.35:465:58New Moon21Mon
22Tue9:374.09:534.12:36-0.22:34-0.25:445:59Waxing Crescent22Tue
23Wed10:163.710:313.93:12-0.13:11-0.15:426:00Waxing Crescent23Wed
24Thu10:573.411:103.63:490.13:480.15:416:01Waxing Crescent24Thu
25Fri11:403.211:523.34:290.44:290.35:396:02Waxing Crescent25Fri
26Sat12:253.05:140.65:160.55:376:03First Quarter26Sat
27Sun12:373.21:123.06:130.86:140.65:366:04First Quarter27Sun
28Mon1:263.12:043.07:360.87:260.75:346:05First Quarter28Mon
29Tue2:203.13:013.18:530.78:400.55:326:07First Quarter29Tue
30Wed3:233.34:023.49:440.49:430.25:316:08Waxing Gibbous30Wed
31Thu4:253.64:583.910:250.110:35-0.15:296:09Waxing Gibbous31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8451929)

Common Questions About Bristol, RI Tides

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What time does the tide turn (slack tide) in Bristol, RI today?

Slack tide in Bristol, RI is approximately 4:34 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 Bristol, RI?

Bristol, RI is currently in a neap phase. Tonight's moon is 55% 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 near their weekly minimum.

What datum are Bristol, 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 Bristol, RI?

Tide predictions for Bristol, 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 Bristol, RI?

Tide data for Bristol, RI is sourced from NOAA Station #8451929. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8451929.

What is the moon phase in Bristol, RI tonight?

Tonight the moon over Bristol, RI is First Quarter (55% illuminated). This places Bristol, RI in a neap tide cycle, so tidal ranges are near their weekly minimum 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