Tides Today & Tomorrow in Bristol, RI

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Bristol, RI.
Next low tide : 10:08 pm (1.2 ft)
Next high tide : in 3h 54m at 3:43 pm (3.7 ft)
Sunset today : 7:36 pm
Sunrise tomorrow : 6:00 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8451929
Common Questions About Tides

Bristol, RI Tides - Dec 1972

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:354.14:563.410:390.610:080.46:524:15Waning Crescent1Fri
2Sat5:244.25:433.411:110.510:410.36:534:15Waning Crescent2Sat
3Sun6:074.36:253.511:440.311:180.26:544:15Waning Crescent3Sun
4Mon6:464.37:043.512:200.26:554:15New Moon4Mon
5Tue7:234.37:413.61:000.16:564:14New Moon5Tue
6Wed7:584.28:183.612:390.11:400.16:574:14New Moon6Wed
7Thu8:334.28:553.51:210.12:190.16:584:14New Moon7Thu
8Fri9:104.19:343.42:020.12:540.26:594:14Waxing Crescent8Fri
9Sat9:483.910:163.42:410.23:270.27:004:14Waxing Crescent9Sat
10Sun10:303.811:013.43:200.34:000.27:014:14Waxing Crescent10Sun
11Mon11:163.711:503.54:010.44:370.37:024:14Waxing Crescent11Mon
12Tue12:063.64:480.55:210.27:034:15First Quarter12Tue
13Wed12:403.612:583.65:490.66:140.27:034:15First Quarter13Wed
14Thu1:323.91:543.57:060.67:150.17:044:15First Quarter14Thu
15Fri2:284.12:543.58:320.48:16-0.17:054:15Waxing Gibbous15Fri
16Sat3:304.44:003.69:440.29:16-0.37:054:16Waxing Gibbous16Sat
17Sun4:344.75:033.910:44-0.110:13-0.57:064:16Waxing Gibbous17Sun
18Mon5:345.16:024.211:38-0.311:08-0.67:074:16Waxing Gibbous18Mon
19Tue6:305.36:564.412:33-0.47:074:17Full Moon19Tue
20Wed7:245.57:494.612:02-0.71:28-0.57:084:17Full Moon20Wed
21Thu8:165.48:414.712:57-0.72:21-0.57:084:18Full Moon21Thu
22Fri9:085.29:334.61:53-0.73:07-0.47:094:18Waning Gibbous22Fri
23Sat9:594.910:274.52:46-0.53:48-0.37:094:19Waning Gibbous23Sat
24Sun10:514.511:214.43:36-0.24:27-0.17:104:19Waning Gibbous24Sun
25Mon11:444.14:270.15:070.17:104:20Third Quarter25Mon
26Tue12:164.212:363.75:250.55:520.37:104:20Third Quarter26Tue
27Wed1:104.01:283.36:450.76:440.57:114:21Third Quarter27Wed
28Thu2:033.82:203.18:210.87:400.67:114:22Third Quarter28Thu
29Fri2:593.73:182.99:220.88:340.67:114:23Waning Crescent29Fri
30Sat3:583.64:182.910:080.79:250.57:114:23Waning Crescent30Sat
31Sun4:543.75:133.010:460.57:124:24Waning Crescent31Sun
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 6:55 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 Bristol, RI?

Bristol, 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 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 (65% illuminated). This places Bristol, 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