Tides Today & Tomorrow in Jamestown, RI

TIDE TIMES for Monday, July 27, 2026
The tide is currently falling in Jamestown, RI.
Next low tide : in 14m at 1:37 am (0.5 ft)
Next high tide : 7:10 am (2.8 ft)
Sunset today : 8:08 pm
Sunrise tomorrow : 5:35 am
Moon phase : Full Moon (96% illuminated)
Tide Station Location : Station #8453742
Common Questions About Tides

Jamestown, RI Tides - May 2081

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:423.23:192.99:270.79:320.95:417:43Third Quarter1Thu
2Fri3:373.14:133.110:170.610:430.85:397:44Third Quarter2Fri
3Sat4:313.05:063.210:480.511:300.75:387:46Waning Crescent3Sat
4Sun5:243.05:553.511:120.45:377:47Waning Crescent4Sun
5Mon6:133.16:373.712:060.511:37 AM0.35:367:48Waning Crescent5Mon
6Tue6:553.17:153.912:350.412:080.25:347:49Waning Crescent6Tue
7Wed7:333.17:504.01:040.312:420.15:337:50New Moon7Wed
8Thu8:083.18:264.11:360.21:190.05:327:51New Moon8Thu
9Fri8:453.19:034.22:130.02:00-0.15:317:52New Moon9Fri
10Sat9:253.19:464.22:550.02:44-0.25:307:53New Moon10Sat
11Sun10:123.110:354.13:40-0.13:33-0.25:297:54Waxing Crescent11Sun
12Mon11:073.011:304.04:27-0.14:24-0.15:287:55Waxing Crescent12Mon
13Tue12:053.15:16-0.15:180.05:277:56Waxing Crescent13Tue
14Wed12:283.91:073.26:070.06:160.25:267:57First Quarter14Wed
15Thu1:283.72:103.47:070.07:280.35:257:58First Quarter15Thu
16Fri2:303.63:113.68:190.09:010.45:247:59First Quarter16Fri
17Sat3:313.54:113.99:30-0.110:240.25:238:00First Quarter17Sat
18Sun4:313.55:094.110:27-0.211:300.15:228:01Waxing Gibbous18Sun
19Mon5:313.46:054.311:18-0.25:218:02Waxing Gibbous19Mon
20Tue6:273.46:554.512:290.012:05-0.25:208:03Waxing Gibbous20Tue
21Wed7:173.47:404.51:21-0.112:50-0.25:208:04Full Moon21Wed
22Thu8:013.48:234.52:07-0.11:31-0.15:198:05Full Moon22Thu
23Fri8:443.39:054.32:510.02:110.05:188:06Full Moon23Fri
24Sat9:283.19:494.13:310.12:520.15:188:06Waning Gibbous24Sat
25Sun10:163.010:363.94:070.13:340.25:178:07Waning Gibbous25Sun
26Mon11:062.911:243.74:400.24:170.35:168:08Waning Gibbous26Mon
27Tue11:582.95:130.35:010.55:168:09Waning Gibbous27Tue
28Wed12:143.512:512.95:490.45:470.65:158:10Third Quarter28Wed
29Thu1:053.31:453.06:300.56:390.85:158:11Third Quarter29Thu
30Fri1:583.12:383.17:210.57:490.95:148:11Third Quarter30Fri
31Sat2:513.03:293.28:210.59:200.95:148:12Third Quarter31Sat
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 4:23 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 spring phase. Tonight's moon is 96% 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 (96% 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