Tides Today & Tomorrow in Jamestown, RI

TIDE TIMES for Thursday, July 9, 2026
The tide is currently rising in Jamestown, RI.
Next low tide : 10:00 pm (0.3 ft)
Next high tide : in 2h 39m at 4:03 pm (4.0 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:20 am
Moon phase : Waning Crescent (30% illuminated)
Tide Station Location : Station #8453742
Common Questions About Tides

Jamestown, RI Tides - Aug 1992

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:264.310:454.23:49-0.74:13-0.45:408:02Waxing Crescent1Sat
2Sun11:204.311:383.94:35-0.75:05-0.35:418:01Waxing Crescent2Sun
3Mon12:144.25:19-0.65:570.05:428:00Waxing Crescent3Mon
4Tue12:333.61:114.16:04-0.36:560.35:437:59First Quarter4Tue
5Wed1:313.32:103.96:560.08:410.55:447:58First Quarter5Wed
6Thu2:313.13:093.88:060.210:120.65:457:56First Quarter6Thu
7Fri3:312.94:083.79:430.411:180.55:467:55Waxing Gibbous7Fri
8Sat4:332.95:083.710:540.45:477:54Waxing Gibbous8Sat
9Sun5:352.96:053.712:150.411:52 AM0.45:487:53Waxing Gibbous9Sun
10Mon6:303.06:523.81:030.412:380.45:497:51Waxing Gibbous10Mon
11Tue7:143.17:313.81:410.31:110.45:507:50Full Moon11Tue
12Wed7:523.38:063.82:090.31:320.45:517:49Full Moon12Wed
13Thu8:263.48:403.72:200.31:550.35:527:47Full Moon13Thu
14Fri9:013.49:143.62:270.22:260.35:537:46Full Moon14Fri
15Sat9:363.59:493.52:500.13:010.25:547:44Waning Gibbous15Sat
16Sun10:143.510:283.43:210.03:410.15:557:43Waning Gibbous16Sun
17Mon10:553.611:093.23:56-0.14:220.15:567:41Waning Gibbous17Mon
18Tue11:403.611:543.14:34-0.25:040.25:577:40Waning Gibbous18Tue
19Wed12:283.65:15-0.15:500.35:587:39Third Quarter19Wed
20Thu12:442.91:223.65:59-0.16:420.45:597:37Third Quarter20Thu
21Fri1:422.82:213.66:510.07:470.56:007:36Third Quarter21Fri
22Sat2:442.83:213.77:550.19:040.56:017:34Third Quarter22Sat
23Sun3:472.94:233.89:080.110:150.36:027:32Waning Crescent23Sun
24Mon4:513.15:244.010:160.011:180.16:037:31Waning Crescent24Mon
25Tue5:543.46:224.211:21-0.26:047:29Waning Crescent25Tue
26Wed6:493.87:134.412:14-0.212:23-0.46:057:28New Moon26Wed
27Thu7:384.27:594.51:04-0.41:21-0.56:067:26New Moon27Thu
28Fri8:244.48:454.41:51-0.62:15-0.66:087:25New Moon28Fri
29Sat9:114.69:324.22:36-0.73:07-0.66:097:23New Moon29Sat
30Sun10:004.510:214.03:21-0.73:58-0.46:107:21Waxing Crescent30Sun
31Mon10:524.411:133.74:06-0.64:47-0.36:117:20Waxing Crescent31Mon
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 7:01 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 transitional phase. Tonight's moon is 30% 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 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 Waning Crescent (30% illuminated). This places Jamestown, 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