Tides Today & Tomorrow in Jamestown, RI

TIDE TIMES for Friday, July 17, 2026
The tide is currently rising in Jamestown, RI.
Next low tide : 4:36 pm (-0.1 ft)
Next high tide : in 6h 14m at 10:50 am (3.8 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 5:26 am
Moon phase : Waxing Crescent (14% illuminated)
Tide Station Location : Station #8453742
Common Questions About Tides

Jamestown, RI Tides - Apr 2071

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:023.89:244.32:20-0.32:29-0.46:277:10New Moon1Wed
2Thu9:443.710:084.33:04-0.43:13-0.56:267:11Waxing Crescent2Thu
3Fri10:323.610:594.33:51-0.44:00-0.66:247:12Waxing Crescent3Fri
4Sat11:253.511:534.24:39-0.44:48-0.56:227:13Waxing Crescent4Sat
5Sun12:223.45:29-0.35:39-0.36:217:15Waxing Crescent5Sun
6Mon12:514.11:243.46:23-0.16:36-0.16:197:16First Quarter6Mon
7Tue1:543.92:283.47:300.17:480.16:177:17First Quarter7Tue
8Wed2:583.93:333.59:000.29:220.26:167:18First Quarter8Wed
9Thu4:013.84:363.610:220.110:470.16:147:19Waxing Gibbous9Thu
10Fri5:043.85:383.911:25-0.111:560.06:127:20Waxing Gibbous10Fri
11Sat6:033.96:334.112:18-0.26:117:21Waxing Gibbous11Sat
12Sun6:553.97:204.212:53-0.11:03-0.26:097:22Waxing Gibbous12Sun
13Mon7:413.98:024.31:41-0.21:39-0.26:087:23Full Moon13Mon
14Tue8:223.88:424.32:22-0.12:10-0.26:067:24Full Moon14Tue
15Wed9:023.79:224.22:56-0.12:40-0.16:047:25Full Moon15Wed
16Thu9:433.510:034.03:260.03:110.06:037:27Waning Gibbous16Thu
17Fri10:263.310:473.93:560.13:460.06:017:28Waning Gibbous17Fri
18Sat11:123.211:333.74:280.14:240.16:007:29Waning Gibbous18Sat
19Sun12:013.05:040.25:040.35:587:30Waning Gibbous19Sun
20Mon12:223.512:532.95:430.35:480.45:577:31Third Quarter20Mon
21Tue1:153.41:482.96:280.56:370.65:557:32Third Quarter21Tue
22Wed2:103.32:452.97:240.67:400.75:547:33Third Quarter22Wed
23Thu3:053.23:403.08:330.68:560.75:527:34Third Quarter23Thu
24Fri4:003.24:343.29:380.510:040.65:517:35Waning Crescent24Fri
25Sat4:553.25:273.410:260.410:580.45:507:36Waning Crescent25Sat
26Sun5:473.36:153.711:090.211:460.25:487:37Waning Crescent26Sun
27Mon6:353.46:584.011:510.05:477:38Waning Crescent27Mon
28Tue7:183.57:394.312:320.012:34-0.25:457:40New Moon28Tue
29Wed7:583.78:194.41:16-0.21:18-0.45:447:41New Moon29Wed
30Thu8:403.79:014.62:02-0.42:03-0.55:437:42New Moon30Thu
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 1:43 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 14% 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 Waxing Crescent (14% 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