Tides Today & Tomorrow in Jamestown, RI

TIDE TIMES for Monday, July 20, 2026
The tide is currently falling in Jamestown, RI.
Next low tide : in 2h 39m at 6:21 am (0.0 ft)
Next high tide : 1:28 pm (3.7 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 5:29 am
Moon phase : First Quarter (42% illuminated)
Tide Station Location : Station #8453742
Common Questions About Tides

Jamestown, RI Tides - Mar 2073

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:293.91:553.28:060.47:470.36:185:36Third Quarter1Wed
2Thu2:303.82:583.19:320.49:240.46:165:37Third Quarter2Thu
3Fri3:323.74:013.110:370.410:330.46:155:38Waning Crescent3Fri
4Sat4:333.75:023.211:320.311:290.36:135:40Waning Crescent4Sat
5Sun5:273.75:523.312:170.26:125:41Waning Crescent5Sun
6Mon6:123.86:333.412:130.312:530.26:105:42Waning Crescent6Mon
7Tue6:503.87:093.512:450.31:180.26:085:43New Moon7Tue
8Wed7:243.87:433.61:040.31:250.26:075:44New Moon8Wed
9Thu7:593.78:183.61:210.21:370.16:055:45New Moon9Thu
10Fri8:343.68:553.61:490.22:030.06:035:46New Moon10Fri
11Sat9:113.59:343.62:230.12:360.06:025:48Waxing Crescent11Sat
12Sun10:513.311:153.64:010.14:13-0.17:006:49Waxing Crescent12Sun
13Mon11:343.24:410.14:51-0.16:586:50Waxing Crescent13Mon
14Tue12:013.612:213.05:230.15:330.06:576:51Waxing Crescent14Tue
15Wed12:503.51:142.96:090.36:190.16:556:52First Quarter15Wed
16Thu1:453.52:122.87:030.47:150.26:536:53First Quarter16Thu
17Fri2:443.53:132.98:110.58:240.36:526:54First Quarter17Fri
18Sat3:443.64:143.09:240.49:350.26:506:55First Quarter18Sat
19Sun4:453.75:163.310:290.210:400.06:486:57Waxing Gibbous19Sun
20Mon5:453.96:143.711:27-0.111:42-0.26:476:58Waxing Gibbous20Mon
21Tue6:394.27:054.112:21-0.36:456:59Waxing Gibbous21Tue
22Wed7:284.37:524.412:41-0.41:10-0.66:437:00Full Moon22Wed
23Thu8:144.48:384.61:36-0.61:58-0.76:427:01Full Moon23Thu
24Fri9:004.49:264.72:29-0.72:45-0.86:407:02Full Moon24Fri
25Sat9:484.210:164.73:21-0.73:32-0.86:387:03Waning Gibbous25Sat
26Sun10:404.011:094.54:12-0.64:19-0.66:367:04Waning Gibbous26Sun
27Mon11:343.85:01-0.45:05-0.46:357:05Waning Gibbous27Mon
28Tue12:044.312:303.55:50-0.15:52-0.16:337:06Third Quarter28Tue
29Wed1:014.01:303.36:460.26:450.26:317:08Third Quarter29Wed
30Thu2:013.82:323.18:320.58:100.56:307:09Third Quarter30Thu
31Fri3:023.63:343.110:060.510:110.66:287:10Third Quarter31Fri
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 9:54 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 neap phase. Tonight's moon is 42% 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 minimum.

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 First Quarter (42% illuminated). This places Jamestown, RI in a neap tide cycle, so tidal ranges are near their weekly minimum 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