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 1h 58m at 7:14 am (0.0 ft)
Next high tide : 2:05 pm (3.7 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 - Apr 2033

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:424.110:094.73:19-0.63:23-0.76:277:10Waxing Crescent1Fri
2Sat10:333.911:014.54:08-0.54:11-0.66:257:12Waxing Crescent2Sat
3Sun11:273.711:554.24:56-0.34:57-0.36:247:13Waxing Crescent3Sun
4Mon12:233.55:43-0.15:440.06:227:14Waxing Crescent4Mon
5Tue12:523.91:223.36:350.26:350.36:207:15First Quarter5Tue
6Wed1:503.72:233.28:080.57:550.66:197:16First Quarter6Wed
7Thu2:503.53:233.19:510.510:050.66:177:17First Quarter7Thu
8Fri3:483.44:223.210:510.511:100.66:157:18Waxing Gibbous8Fri
9Sat4:463.35:193.311:400.46:147:19Waxing Gibbous9Sat
10Sun5:413.36:103.412:020.512:210.46:127:20Waxing Gibbous10Sun
11Mon6:303.46:533.612:450.412:490.36:107:21Waxing Gibbous11Mon
12Tue7:113.47:303.71:170.41:010.36:097:22Waxing Gibbous12Tue
13Wed7:473.48:053.81:350.31:130.26:077:23Full Moon13Wed
14Thu8:213.48:383.91:490.21:390.16:067:25Full Moon14Thu
15Fri8:563.49:133.92:150.12:110.06:047:26Full Moon15Fri
16Sat9:323.39:503.92:490.02:49-0.16:037:27Full Moon16Sat
17Sun10:123.210:313.93:270.03:29-0.16:017:28Waning Gibbous17Sun
18Mon10:573.111:183.84:09-0.14:13-0.15:597:29Waning Gibbous18Mon
19Tue11:463.14:53-0.14:59-0.15:587:30Waning Gibbous19Tue
20Wed12:093.712:413.15:390.05:490.05:567:31Waning Gibbous20Wed
21Thu1:043.71:403.26:300.06:460.15:557:32Third Quarter21Thu
22Fri2:053.62:413.37:320.17:550.25:547:33Third Quarter22Fri
23Sat3:053.63:423.58:430.09:140.25:527:34Third Quarter23Sat
24Sun4:063.74:423.89:50-0.110:260.05:517:35Waning Crescent24Sun
25Mon5:073.75:424.110:48-0.311:31-0.25:497:36Waning Crescent25Mon
26Tue6:063.96:364.511:43-0.55:487:38Waning Crescent26Tue
27Wed6:594.07:264.712:32-0.412:35-0.65:467:39New Moon27Wed
28Thu7:484.08:124.81:26-0.51:24-0.65:457:40New Moon28Thu
29Fri8:344.08:584.82:18-0.52:12-0.65:447:41New Moon29Fri
30Sat9:223.99:464.63:07-0.52:59-0.55:427:42New Moon30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8453742)

Common Questions About Jamestown, RI Tides

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

Slack tide in Jamestown, RI is approximately 10:39 am — 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