Tides Today & Tomorrow in Jamestown, RI

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in Jamestown, RI.
Next low tide : in 2h 18m at 8:21 pm (0.6 ft)
Next high tide (tomorrow) : 2:20 am (3.3 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:11 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8453742
Common Questions About Tides

Jamestown, RI Tides - Mar 2034

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:523.95:213.411:390.111:400.16:195:36Waxing Gibbous1Wed
2Thu5:454.06:103.612:260.06:175:37Waxing Gibbous2Thu
3Fri6:304.06:513.712:270.11:030.06:165:38Full Moon3Fri
4Sat7:094.07:293.81:040.11:310.06:145:39Full Moon4Sat
5Sun7:453.98:063.81:310.11:470.16:135:40Full Moon5Sun
6Mon8:223.78:443.81:530.12:040.06:115:41Full Moon6Mon
7Tue9:003.69:233.72:200.12:300.06:095:42Waning Gibbous7Tue
8Wed9:403.410:053.62:530.13:030.06:085:44Waning Gibbous8Wed
9Thu10:233.210:493.53:300.23:400.06:065:45Waning Gibbous9Thu
10Fri11:093.111:373.54:090.24:190.16:045:46Waning Gibbous10Fri
11Sat11:592.94:510.45:010.26:035:47Third Quarter11Sat
12Sun12:293.41:542.86:390.56:500.37:016:48Third Quarter12Sun
13Mon2:253.32:522.87:390.67:510.56:596:49Third Quarter13Mon
14Tue3:223.43:502.88:500.69:010.46:586:50Third Quarter14Tue
15Wed4:193.44:483.09:570.510:050.36:566:52Waning Crescent15Wed
16Thu5:173.65:463.310:530.311:040.16:546:53Waning Crescent16Thu
17Fri6:113.86:373.711:440.06:536:54Waning Crescent17Fri
18Sat6:594.07:224.012:00-0.112:32-0.26:516:55Waning Crescent18Sat
19Sun7:434.28:064.312:53-0.31:18-0.56:496:56New Moon19Sun
20Mon8:264.38:504.61:44-0.52:04-0.76:486:57New Moon20Mon
21Tue9:114.29:374.62:35-0.62:50-0.86:466:58New Moon21Tue
22Wed10:004.110:284.63:26-0.73:38-0.86:446:59Waxing Crescent22Wed
23Thu10:524.011:224.54:17-0.64:27-0.76:427:00Waxing Crescent23Thu
24Fri11:483.85:08-0.45:16-0.56:417:01Waxing Crescent24Fri
25Sat12:194.312:473.66:00-0.26:07-0.26:397:03First Quarter25Sat
26Sun1:194.11:503.47:020.17:100.16:377:04First Quarter26Sun
27Mon2:223.92:543.38:510.38:540.46:367:05First Quarter27Mon
28Tue3:253.83:573.310:200.310:320.46:347:06First Quarter28Tue
29Wed4:273.75:003.411:230.211:390.36:327:07Waxing Gibbous29Wed
30Thu5:273.65:593.512:150.16:317:08Waxing Gibbous30Thu
31Fri6:223.76:483.712:340.212:590.16:297:09Waxing Gibbous31Fri
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 11:20 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 neap phase. Tonight's moon is 48% 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 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 First Quarter (48% illuminated). This places Jamestown, 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