Tides Today & Tomorrow in Bristol, RI

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Bristol, RI.
Next low tide : 8:00 am (1.1 ft)
Next high tide : in 24m at 3:05 am (3.1 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 1973

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:583.44:430.75:210.66:524:15First Quarter1Sat
2Sun12:313.312:443.35:380.86:110.66:534:15First Quarter2Sun
3Mon1:173.41:323.36:490.97:070.56:544:15First Quarter3Mon
4Tue2:063.62:253.38:080.88:030.36:554:15First Quarter4Tue
5Wed3:003.83:253.49:150.58:560.16:564:14Waxing Gibbous5Wed
6Thu3:584.24:273.510:100.29:47-0.26:574:14Waxing Gibbous6Thu
7Fri4:574.55:253.811:000.010:37-0.46:584:14Waxing Gibbous7Fri
8Sat5:524.96:194.111:49-0.311:27-0.66:594:14Full Moon8Sat
9Sun6:445.27:114.412:40-0.47:004:14Full Moon9Sun
10Mon7:365.48:034.612:18-0.71:33-0.57:014:14Full Moon10Mon
11Tue8:285.58:564.71:12-0.82:25-0.57:024:14Waning Gibbous11Tue
12Wed9:205.39:504.72:06-0.73:14-0.57:024:15Waning Gibbous12Wed
13Thu10:155.110:464.63:00-0.54:01-0.37:034:15Waning Gibbous13Thu
14Fri11:104.711:444.63:55-0.24:51-0.17:044:15Waning Gibbous14Fri
15Sat12:074.44:550.15:490.17:054:15Third Quarter15Sat
16Sun12:424.51:044.06:180.47:010.37:054:15Third Quarter16Sun
17Mon1:394.42:003.78:130.68:060.37:064:16Third Quarter17Mon
18Tue2:384.33:003.59:240.58:560.47:074:16Waning Crescent18Tue
19Wed3:394.24:023.310:170.59:360.47:074:16Waning Crescent19Wed
20Thu4:394.25:003.410:590.410:120.37:084:17Waning Crescent20Thu
21Fri5:324.25:513.411:330.410:490.27:084:17Waning Crescent21Fri
22Sat6:184.36:363.512:040.37:094:18New Moon22Sat
23Sun7:014.37:173.612:370.27:094:18New Moon23Sun
24Mon7:394.37:563.612:100.01:140.17:104:19New Moon24Mon
25Tue8:164.28:343.612:530.01:510.07:104:20New Moon25Tue
26Wed8:514.19:113.61:360.02:270.07:104:20Waxing Crescent26Wed
27Thu9:263.99:483.52:180.03:000.07:114:21Waxing Crescent27Thu
28Fri10:013.710:263.42:570.13:320.07:114:22Waxing Crescent28Fri
29Sat10:393.611:073.43:350.24:030.17:114:22Waxing Crescent29Sat
30Sun11:213.411:513.44:150.34:370.17:114:23Waxing Crescent30Sun
31Mon12:073.34:590.55:170.17:124:24First Quarter31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8451929)

Common Questions About Bristol, RI Tides

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

Slack tide in Bristol, RI is approximately 5:32 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 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