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 4h 22m 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 - Apr 2001

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:093.82:423.07:440.37:550.26:277:10First Quarter1Sun
2Mon3:133.83:483.29:080.39:170.26:267:11First Quarter2Mon
3Tue4:183.84:533.410:260.110:360.16:247:12Waxing Gibbous3Tue
4Wed5:223.95:553.711:29-0.111:47-0.16:227:13Waxing Gibbous4Wed
5Thu6:214.16:504.112:24-0.36:217:15Waxing Gibbous5Thu
6Fri7:124.27:374.412:49-0.31:11-0.46:197:16Full Moon6Fri
7Sat7:584.28:214.51:42-0.41:52-0.56:177:17Full Moon7Sat
8Sun8:414.19:044.52:30-0.42:31-0.46:167:18Full Moon8Sun
9Mon9:253.99:494.43:14-0.33:09-0.46:147:19Full Moon9Mon
10Tue10:113.610:354.23:55-0.23:46-0.26:127:20Waning Gibbous10Tue
11Wed10:583.411:234.04:33-0.14:24-0.16:117:21Waning Gibbous11Wed
12Thu11:483.25:100.15:020.16:097:22Waning Gibbous12Thu
13Fri12:133.812:413.05:480.35:420.36:087:23Third Quarter13Fri
14Sat1:063.51:372.86:320.66:290.66:067:24Third Quarter14Sat
15Sun2:033.42:362.87:350.87:300.86:047:25Third Quarter15Sun
16Mon3:003.33:342.89:560.89:090.96:037:26Third Quarter16Mon
17Tue3:573.24:322.910:490.710:400.86:017:28Third Quarter17Tue
18Wed4:543.25:273.111:270.611:300.66:007:29Waning Crescent18Wed
19Thu5:473.36:163.311:500.45:587:30Waning Crescent19Thu
20Fri6:343.46:573.612:060.512:100.35:577:31Waning Crescent20Fri
21Sat7:143.47:343.812:380.312:370.25:557:32Waning Crescent21Sat
22Sun7:503.58:084.01:100.21:090.05:547:33New Moon22Sun
23Mon8:263.58:444.11:460.01:45-0.25:527:34New Moon23Mon
24Tue9:023.49:224.22:25-0.12:24-0.35:517:35New Moon24Tue
25Wed9:433.410:054.23:07-0.23:07-0.45:507:36Waxing Crescent25Wed
26Thu10:303.310:544.23:53-0.33:53-0.45:487:37Waxing Crescent26Thu
27Fri11:233.211:494.14:40-0.34:42-0.35:477:38Waxing Crescent27Fri
28Sat12:213.25:29-0.25:34-0.25:457:39Waxing Crescent28Sat
29Sun12:484.01:243.26:230.06:310.15:447:41First Quarter29Sun
30Mon1:513.92:293.37:290.17:440.35:437:42First Quarter30Mon
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