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 3h 51m 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 - Sep 1992

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue11:454.24:50-0.45:330.06:127:18Waxing Crescent1Tue
2Wed12:073.412:414.05:33-0.26:240.36:137:16First Quarter2Wed
3Thu1:043.21:393.86:200.17:440.66:147:15First Quarter3Thu
4Fri2:043.02:393.67:190.49:470.76:157:13First Quarter4Fri
5Sat3:062.93:393.59:200.610:520.66:167:11First Quarter5Sat
6Sun4:072.94:383.410:430.611:460.56:177:10Waxing Gibbous6Sun
7Mon5:072.95:343.511:400.56:187:08Waxing Gibbous7Mon
8Tue6:023.16:243.512:290.412:250.56:197:06Waxing Gibbous8Tue
9Wed6:483.37:053.61:030.412:580.46:207:05Waxing Gibbous9Wed
10Thu7:253.57:413.61:240.31:190.46:217:03Full Moon10Thu
11Fri7:593.68:143.61:300.31:370.36:227:01Full Moon11Fri
12Sat8:323.78:473.51:450.22:040.26:236:59Full Moon12Sat
13Sun9:053.89:203.42:110.02:380.16:246:58Full Moon13Sun
14Mon9:413.89:573.32:45-0.13:160.06:256:56Waning Gibbous14Mon
15Tue10:203.810:383.23:22-0.23:570.06:266:54Waning Gibbous15Tue
16Wed11:053.811:253.04:03-0.24:400.06:276:53Waning Gibbous16Wed
17Thu11:553.74:46-0.25:270.16:286:51Waning Gibbous17Thu
18Fri12:192.912:523.75:33-0.16:180.26:296:49Third Quarter18Fri
19Sat1:192.91:533.66:270.17:200.46:306:47Third Quarter19Sat
20Sun2:242.92:573.77:330.28:380.46:316:46Third Quarter20Sun
21Mon3:293.13:593.78:530.29:540.26:326:44Waning Crescent21Mon
22Tue4:323.45:013.910:100.110:56-0.16:336:42Waning Crescent22Tue
23Wed5:333.76:004.011:18-0.111:50-0.36:346:40Waning Crescent23Wed
24Thu6:294.16:534.112:20-0.36:356:39Waning Crescent24Thu
25Fri7:194.57:404.212:39-0.51:15-0.56:366:37New Moon25Fri
26Sat8:044.78:254.11:25-0.62:06-0.56:376:35New Moon26Sat
27Sun8:494.79:104.02:08-0.62:54-0.56:386:34New Moon27Sun
28Mon9:354.69:573.82:52-0.63:41-0.46:396:32Waxing Crescent28Mon
29Tue10:244.410:483.53:35-0.44:26-0.26:406:30Waxing Crescent29Tue
30Wed11:154.211:413.34:19-0.25:090.16:416:28Waxing Crescent30Wed
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