Tides Today & Tomorrow in Jamestown, RI

TIDE TIMES for Sunday, June 28, 2026
The tide is currently rising in Jamestown, RI.
Next low tide (tomorrow) : 2:23 am (0.5 ft)
Next high tide : in 2h 44m at 7:50 pm (3.9 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:14 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #8453742
Common Questions About Tides

Jamestown, RI Tides - Feb 2007

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:004.17:223.312:370.21:440.16:575:00Full Moon1Thu
2Fri7:384.08:013.41:150.22:130.16:565:02Full Moon2Fri
3Sat8:153.98:393.41:460.22:300.16:555:03Full Moon3Sat
4Sun8:533.79:193.52:170.22:470.16:545:04Waning Gibbous4Sun
5Mon9:323.510:003.52:510.33:110.06:525:06Waning Gibbous5Mon
6Tue10:133.310:433.53:260.33:410.06:515:07Waning Gibbous6Tue
7Wed10:553.111:283.44:040.34:150.06:505:08Waning Gibbous7Wed
8Thu11:412.94:440.54:520.16:495:09Third Quarter8Thu
9Fri12:173.412:312.75:290.65:350.36:485:11Third Quarter9Fri
10Sat1:103.31:272.66:250.86:270.46:475:12Third Quarter10Sat
11Sun2:063.42:262.57:390.97:310.56:455:13Third Quarter11Sun
12Mon3:043.43:282.58:570.88:370.46:445:14Waning Crescent12Mon
13Tue4:033.64:312.710:020.69:380.36:435:16Waning Crescent13Tue
14Wed5:013.85:273.010:560.410:360.16:415:17Waning Crescent14Wed
15Thu5:504.06:143.311:420.111:33-0.16:405:18Waning Crescent15Thu
16Fri6:344.26:573.712:24-0.16:395:19New Moon16Fri
17Sat7:164.37:404.012:26-0.31:06-0.46:375:21New Moon17Sat
18Sun7:594.38:254.21:18-0.41:48-0.66:365:22New Moon18Sun
19Mon8:444.29:134.42:10-0.52:32-0.76:355:23Waxing Crescent19Mon
20Tue9:324.010:054.43:01-0.53:16-0.86:335:24Waxing Crescent20Tue
21Wed10:243.810:594.33:51-0.44:00-0.76:325:25Waxing Crescent21Wed
22Thu11:193.511:564.24:41-0.14:46-0.46:305:27First Quarter22Thu
23Fri12:183.25:360.25:37-0.16:295:28First Quarter23Fri
24Sat12:574.01:223.06:560.56:420.26:275:29First Quarter24Sat
25Sun2:013.82:282.98:580.68:230.46:265:30First Quarter25Sun
26Mon3:063.73:362.910:140.59:550.46:245:31Waxing Gibbous26Mon
27Tue4:123.74:433.011:160.311:040.46:235:33Waxing Gibbous27Tue
28Wed5:123.75:403.212:060.26:215:34Waxing Gibbous28Wed
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 11:06 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 98% 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 (98% 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