Tides Today & Tomorrow in Bristol, RI

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently falling in Bristol, RI.
Next low tide : in 2h 39m at 8:40 pm (1.1 ft)
Next high tide (tomorrow) : 2:49 am (3.4 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 5:29 am
Moon phase : First Quarter (52% illuminated)
Tide Station Location : Station #8451929
Common Questions About Tides

Bristol, RI Tides - May 2021

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:254.25:360.05:170.25:407:43Waning Gibbous1Sat
2Sun12:544.71:254.06:520.46:180.55:397:44Third Quarter2Sun
3Mon1:554.42:263.98:390.68:100.85:387:45Third Quarter3Mon
4Tue2:564.13:273.99:490.610:070.85:377:46Third Quarter4Tue
5Wed3:583.94:303.910:400.611:040.75:357:47Third Quarter5Wed
6Thu5:013.85:304.111:150.611:460.65:347:48Waning Crescent6Thu
7Fri5:573.86:224.311:390.55:337:49Waning Crescent7Fri
8Sat6:443.87:064.412:190.511:59 AM0.45:327:50Waning Crescent8Sat
9Sun7:263.97:464.512:490.412:260.35:317:51Waning Crescent9Sun
10Mon8:053.98:224.51:210.212:580.25:307:52New Moon10Mon
11Tue8:423.88:564.51:570.11:350.15:287:54New Moon11Tue
12Wed9:183.89:284.42:360.12:130.15:277:55New Moon12Wed
13Thu9:553.710:024.23:140.12:520.25:267:56New Moon13Thu
14Fri10:333.510:374.13:500.23:300.35:257:57Waxing Crescent14Fri
15Sat11:133.411:173.94:250.34:080.45:247:58Waxing Crescent15Sat
16Sun11:583.34:590.54:480.55:237:59Waxing Crescent16Sun
17Mon12:023.812:463.35:380.65:320.65:238:00Waxing Crescent17Mon
18Tue12:533.71:363.46:250.76:270.75:228:01First Quarter18Tue
19Wed1:463.72:283.57:270.77:370.85:218:02First Quarter19Wed
20Thu2:413.73:233.88:360.68:560.65:208:02First Quarter20Thu
21Fri3:403.84:224.29:350.410:090.45:198:03Waxing Gibbous21Fri
22Sat4:433.95:224.610:250.111:110.15:188:04Waxing Gibbous22Sat
23Sun5:464.16:195.111:13-0.25:188:05Waxing Gibbous23Sun
24Mon6:444.47:125.512:06-0.211:59 AM-0.45:178:06Waxing Gibbous24Mon
25Tue7:384.68:045.81:00-0.412:47-0.55:168:07Full Moon25Tue
26Wed8:314.78:565.91:54-0.51:36-0.55:168:08Full Moon26Wed
27Thu9:234.79:485.82:50-0.52:28-0.55:158:09Full Moon27Thu
28Fri10:164.710:425.53:44-0.43:21-0.35:148:10Waning Gibbous28Fri
29Sat11:114.511:385.14:35-0.24:130.05:148:10Waning Gibbous29Sat
30Sun12:084.45:270.15:060.35:138:11Waning Gibbous30Sun
31Mon12:354.81:064.36:290.46:080.65:138:12Third Quarter31Mon
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 11:44 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 neap phase. Tonight's moon is 52% 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 (52% 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