Tides Today & Tomorrow in Jamestown, RI

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Jamestown, RI.
Next low tide : in 3h 58m at 4:41 am (-0.1 ft)
Next high tide : 11:37 am (3.2 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:17 am
Moon phase : Waning Gibbous (81% illuminated)
Tide Station Location : Station #8453742
Common Questions About Tides

Jamestown, RI Tides - Dec 2052

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:563.73:153.38:310.38:44-0.26:534:16Waxing Gibbous1Sun
2Mon3:524.04:133.49:340.19:38-0.36:544:16Waxing Gibbous2Mon
3Tue4:474.35:103.510:32-0.110:31-0.56:554:15Waxing Gibbous3Tue
4Wed5:404.66:033.711:29-0.311:24-0.66:564:15Waxing Gibbous4Wed
5Thu6:284.86:513.812:22-0.56:574:15Full Moon5Thu
6Fri7:154.97:403.912:17-0.71:15-0.66:584:15Full Moon6Fri
7Sat8:034.98:313.91:10-0.72:07-0.66:584:15Full Moon7Sat
8Sun8:544.79:253.92:04-0.62:59-0.66:594:15Waning Gibbous8Sun
9Mon9:484.510:233.82:59-0.43:49-0.57:004:15Waning Gibbous9Mon
10Tue10:444.211:213.73:53-0.24:37-0.37:014:15Waning Gibbous10Tue
11Wed11:403.94:470.15:27-0.17:024:15Third Quarter11Wed
12Thu12:203.712:383.65:500.46:310.17:034:15Third Quarter12Thu
13Fri1:193.71:363.47:440.68:020.27:034:16Third Quarter13Fri
14Sat2:163.72:333.29:100.59:080.27:044:16Third Quarter14Sat
15Sun3:123.73:303.110:110.59:580.37:054:16Waning Crescent15Sun
16Mon4:063.74:273.011:050.410:390.37:054:16Waning Crescent16Mon
17Tue4:583.85:193.011:520.411:090.37:064:17Waning Crescent17Tue
18Wed5:443.96:043.112:320.47:074:17Waning Crescent18Wed
19Thu6:243.96:433.11:010.47:074:18New Moon19Thu
20Fri7:004.07:193.11:140.37:084:18New Moon20Fri
21Sat7:344.07:563.112:270.31:260.37:084:19New Moon21Sat
22Sun8:103.98:343.11:030.21:530.17:094:19New Moon22Sun
23Mon8:483.89:163.21:430.12:280.07:094:20Waxing Crescent23Mon
24Tue9:283.810:003.22:260.13:06-0.17:094:20Waxing Crescent24Tue
25Wed10:123.610:483.33:120.13:46-0.27:104:21Waxing Crescent25Wed
26Thu10:593.511:383.43:580.14:28-0.27:104:22Waxing Crescent26Thu
27Fri11:503.44:470.25:14-0.27:104:22First Quarter27Fri
28Sat12:313.512:453.35:410.36:06-0.27:114:23First Quarter28Sat
29Sun1:273.71:433.26:460.47:07-0.27:114:24First Quarter29Sun
30Mon2:243.82:433.28:000.38:11-0.27:114:25First Quarter30Mon
31Tue3:224.13:443.39:100.29:14-0.37:114:25Waxing Gibbous31Tue
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 8:09 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 spring phase. Tonight's moon is 81% 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 Waning Gibbous (81% 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