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 1h 25m at 4:51 pm (0.2 ft)
Next high tide : 11:46 pm (3.5 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 - Jan 2001

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:013.112:123.25:010.55:310.17:114:26First Quarter1Mon
2Tue12:533.21:063.15:560.66:220.17:114:27First Quarter2Tue
3Wed1:463.42:003.07:020.67:200.17:114:28First Quarter3Wed
4Thu2:393.62:562.98:140.58:200.07:114:29First Quarter4Thu
5Fri3:343.83:553.09:180.49:15-0.17:114:30Waxing Gibbous5Fri
6Sat4:304.14:543.110:180.210:08-0.37:114:31Waxing Gibbous6Sat
7Sun5:254.35:493.311:150.011:03-0.47:114:32Waxing Gibbous7Sun
8Mon6:154.66:383.512:09-0.27:114:33Full Moon8Mon
9Tue7:024.87:263.71:02-0.47:114:34Full Moon9Tue
10Wed7:494.88:163.812:53-0.61:53-0.57:114:35Full Moon10Wed
11Thu8:394.79:093.91:48-0.62:44-0.67:104:36Waning Gibbous11Thu
12Fri9:314.510:053.92:45-0.53:33-0.67:104:37Waning Gibbous12Fri
13Sat10:254.311:023.93:40-0.34:19-0.57:104:38Waning Gibbous13Sat
14Sun11:204.011:593.94:34-0.15:05-0.47:094:39Waning Gibbous14Sun
15Mon12:173.75:320.25:57-0.17:094:40Third Quarter15Mon
16Tue12:573.91:153.46:550.47:050.17:084:41Third Quarter16Tue
17Wed1:553.82:133.28:410.58:260.27:084:43Third Quarter17Wed
18Thu2:523.83:123.09:520.59:290.37:074:44Waning Crescent18Thu
19Fri3:503.84:122.910:530.410:220.37:074:45Waning Crescent19Fri
20Sat4:473.85:102.911:470.411:070.47:064:46Waning Crescent20Sat
21Sun5:373.95:593.012:330.47:054:47Waning Crescent21Sun
22Mon6:203.96:403.01:100.47:054:49New Moon22Mon
23Tue6:573.97:173.112:060.41:370.47:044:50New Moon23Tue
24Wed7:323.97:533.112:340.41:480.37:034:51New Moon24Wed
25Thu8:083.98:303.21:070.32:010.27:034:52New Moon25Thu
26Fri8:443.89:103.21:440.22:270.17:024:53Waxing Crescent26Fri
27Sat9:233.79:523.22:250.23:000.07:014:55Waxing Crescent27Sat
28Sun10:043.510:353.33:070.23:36-0.17:004:56Waxing Crescent28Sun
29Mon10:473.411:213.43:500.24:14-0.16:594:57Waxing Crescent29Mon
30Tue11:343.24:360.24:56-0.16:584:58First Quarter30Tue
31Wed12:113.512:263.15:250.35:42-0.16:575:00First Quarter31Wed
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 8:18 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 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