Tides Today & Tomorrow in Jamestown, RI

TIDE TIMES for Thursday, July 30, 2026
The tide is currently falling in Jamestown, RI.
Next low tide : in 1h 40m at 2:18 pm (0.2 ft)
Next high tide : 9:14 pm (3.8 ft)
Sunset today : 8:05 pm
Sunrise tomorrow : 5:38 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #8453742
Common Questions About Tides

Jamestown, RI Tides - Apr 2084

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:253.75:593.811:510.06:267:11Waning Crescent1Sat
2Sun6:223.86:504.012:200.012:37-0.16:247:12Waning Crescent2Sun
3Mon7:103.87:344.21:12-0.11:16-0.26:227:13New Moon3Mon
4Tue7:523.88:134.31:56-0.11:48-0.16:217:14New Moon4Tue
5Wed8:313.68:514.22:33-0.12:15-0.16:197:15New Moon5Wed
6Thu9:103.59:304.13:050.02:43-0.16:187:17New Moon6Thu
7Fri9:503.310:114.03:330.13:150.06:167:18Waxing Crescent7Fri
8Sat10:323.110:553.84:020.23:500.16:147:19Waxing Crescent8Sat
9Sun11:183.011:423.64:360.34:290.26:137:20Waxing Crescent9Sun
10Mon12:082.85:120.45:100.36:117:21Waxing Crescent10Mon
11Tue12:323.41:022.75:530.55:540.56:097:22First Quarter11Tue
12Wed1:273.32:002.76:410.66:470.76:087:23First Quarter12Wed
13Thu2:243.22:582.87:440.77:560.86:067:24First Quarter13Thu
14Fri3:203.13:542.99:010.79:180.86:057:25First Quarter14Fri
15Sat4:153.14:483.19:590.510:230.66:037:26Waxing Gibbous15Sat
16Sun5:093.25:403.410:430.411:160.46:027:27Waxing Gibbous16Sun
17Mon6:003.36:263.811:230.26:007:29Waxing Gibbous17Mon
18Tue6:463.47:084.112:030.212:03-0.15:597:30Waxing Gibbous18Tue
19Wed7:273.57:484.312:480.012:45-0.35:577:31Full Moon19Wed
20Thu8:073.58:284.51:32-0.21:29-0.45:567:32Full Moon20Thu
21Fri8:493.69:114.62:18-0.32:14-0.55:547:33Full Moon21Fri
22Sat9:353.510:004.53:05-0.43:02-0.55:537:34Waning Gibbous22Sat
23Sun10:273.510:544.43:55-0.43:54-0.55:517:35Waning Gibbous23Sun
24Mon11:243.411:524.24:46-0.34:47-0.35:507:36Waning Gibbous24Mon
25Tue12:263.35:38-0.25:42-0.15:487:37Waning Gibbous25Tue
26Wed12:524.01:303.46:350.06:460.25:477:38Third Quarter26Wed
27Thu1:553.82:353.57:520.18:200.45:467:39Third Quarter27Thu
28Fri2:583.73:373.69:260.110:060.35:447:40Third Quarter28Fri
29Sat3:593.54:373.810:300.011:150.25:437:42Waning Crescent29Sat
30Sun4:593.55:353.911:220.05:427:43Waning Crescent30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8453742)

Common Questions About Jamestown, RI Tides

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

Slack tide in Jamestown, RI is approximately 5:46 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 Jamestown, RI?

Jamestown, RI is currently in a spring phase. Tonight's moon is 99% 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 maximum.

What datum are Jamestown, 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 Jamestown, RI?

Tide predictions for Jamestown, 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 Jamestown, RI?

Tide data for Jamestown, RI is sourced from NOAA Station #8453742. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8453742.

What is the moon phase in Jamestown, RI tonight?

Tonight the moon over Jamestown, RI is Full Moon (99% illuminated). This places Jamestown, RI in a spring tide cycle, so tidal ranges are near their weekly maximum 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