Tides Today & Tomorrow in Jamestown, RI

TIDE TIMES for Monday, June 29, 2026
The tide is currently rising in Jamestown, RI.
Next low tide (tomorrow) : 2:36 am (0.4 ft)
Next high tide : in 5h 40m at 8:25 pm (3.9 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:14 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8453742
Common Questions About Tides

Jamestown, RI Tides - Jan 2006

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:194.68:483.61:22-0.42:22-0.47:114:26New Moon1Sun
2Mon9:094.49:423.72:18-0.43:10-0.57:114:27Waxing Crescent2Mon
3Tue10:024.310:393.83:15-0.33:56-0.57:114:28Waxing Crescent3Tue
4Wed10:564.011:363.94:10-0.24:42-0.57:114:28Waxing Crescent4Wed
5Thu11:523.75:060.15:31-0.37:114:29First Quarter5Thu
6Fri12:344.012:513.56:130.36:28-0.17:114:30First Quarter6Fri
7Sat1:334.01:503.27:530.57:390.07:114:31First Quarter7Sat
8Sun2:324.02:503.09:200.48:500.17:114:32Waxing Gibbous8Sun
9Mon3:314.03:522.910:280.49:500.27:114:33Waxing Gibbous9Mon
10Tue4:303.94:552.911:290.310:450.37:114:34Waxing Gibbous10Tue
11Wed5:264.05:492.912:220.37:104:36Waxing Gibbous11Wed
12Thu6:134.06:343.01:070.37:104:37Full Moon12Thu
13Fri6:534.07:143.012:100.41:450.37:104:38Full Moon13Fri
14Sat7:313.97:523.012:420.42:120.37:094:39Full Moon14Sat
15Sun8:073.98:303.11:140.42:260.37:094:40Full Moon15Sun
16Mon8:443.89:113.11:490.32:410.27:084:41Waning Gibbous16Mon
17Tue9:233.69:533.22:280.33:070.17:084:42Waning Gibbous17Tue
18Wed10:043.510:363.23:090.33:380.17:074:43Waning Gibbous18Wed
19Thu10:463.311:213.33:500.34:130.07:074:45Waning Gibbous19Thu
20Fri11:313.14:330.44:500.07:064:46Third Quarter20Fri
21Sat12:093.312:202.95:190.55:320.17:064:47Third Quarter21Sat
22Sun1:003.41:132.76:140.76:230.27:054:48Third Quarter22Sun
23Mon1:533.52:092.67:230.77:230.27:044:49Third Quarter23Mon
24Tue2:493.63:092.68:360.78:250.27:034:51Waning Crescent24Tue
25Wed3:483.84:132.79:420.59:250.17:034:52Waning Crescent25Wed
26Thu4:484.05:142.910:430.310:24-0.17:024:53Waning Crescent26Thu
27Fri5:434.26:073.211:400.111:23-0.27:014:54Waning Crescent27Fri
28Sat6:314.56:553.512:31-0.27:004:56New Moon28Sat
29Sun7:174.67:423.812:21-0.41:18-0.46:594:57New Moon29Sun
30Mon8:024.68:304.01:17-0.52:05-0.66:584:58New Moon30Mon
31Tue8:514.59:224.22:13-0.52:50-0.76:574:59Waxing Crescent31Tue
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 11:30 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 100% 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 Full Moon (100% 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