Tides Today & Tomorrow in Jamestown, RI

TIDE TIMES for Thursday, July 9, 2026
The tide is currently falling in Jamestown, RI.
Next low tide : in 18m at 10:00 pm (0.3 ft)
Next high tide (tomorrow) : 4:24 am (2.9 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 - Apr 2063

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:583.210:224.03:24-0.13:24-0.36:277:10Waxing Crescent1Sun
2Mon10:433.111:094.04:07-0.14:08-0.36:267:11Waxing Crescent2Mon
3Tue11:333.04:520.04:54-0.26:247:12Waxing Crescent3Tue
4Wed12:033.912:312.95:400.15:44-0.16:227:13First Quarter4Wed
5Thu1:033.81:362.96:350.26:420.16:217:15First Quarter5Thu
6Fri2:083.72:433.07:460.37:570.36:197:16First Quarter6Fri
7Sat3:133.73:493.29:130.39:270.36:177:17First Quarter7Sat
8Sun4:163.74:533.510:260.110:470.16:167:18Waxing Gibbous8Sun
9Mon5:193.85:533.911:23-0.111:55-0.16:147:19Waxing Gibbous9Mon
10Tue6:173.96:464.212:13-0.36:127:20Waxing Gibbous10Tue
11Wed7:073.97:334.512:53-0.212:57-0.46:117:21Full Moon11Wed
12Thu7:523.98:154.61:44-0.31:38-0.46:097:22Full Moon12Thu
13Fri8:353.88:584.62:29-0.32:17-0.46:087:23Full Moon13Fri
14Sat9:183.69:414.43:12-0.32:55-0.36:067:24Full Moon14Sat
15Sun10:033.410:284.23:53-0.13:34-0.26:057:25Waning Gibbous15Sun
16Mon10:523.211:163.94:310.04:140.06:037:26Waning Gibbous16Mon
17Tue11:433.05:070.24:540.26:017:28Waning Gibbous17Tue
18Wed12:083.712:372.85:460.45:370.46:007:29Third Quarter18Wed
19Thu1:023.41:352.76:310.66:250.75:587:30Third Quarter19Thu
20Fri2:003.32:352.77:400.87:320.95:577:31Third Quarter20Fri
21Sat2:583.23:332.89:510.89:410.95:557:32Third Quarter21Sat
22Sun3:533.14:293.010:370.710:510.85:547:33Third Quarter22Sun
23Mon4:483.15:223.211:060.611:360.65:527:34Waning Crescent23Mon
24Tue5:413.16:093.511:280.45:517:35Waning Crescent24Tue
25Wed6:283.26:503.712:110.511:53 AM0.35:507:36Waning Crescent25Wed
26Thu7:083.27:263.912:400.412:230.25:487:37Waning Crescent26Thu
27Fri7:443.28:014.11:110.212:570.05:477:38New Moon27Fri
28Sat8:193.28:374.21:460.11:34-0.15:457:39New Moon28Sat
29Sun8:563.29:164.22:240.02:15-0.25:447:41New Moon29Sun
30Mon9:383.210:004.23:07-0.12:59-0.35:437:42Waxing Crescent30Mon
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 1:12 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 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