Tides Today & Tomorrow in Jamestown, RI

TIDE TIMES for Saturday, July 18, 2026
The tide is currently falling in Jamestown, RI.
Next low tide : in 12m at 5:24 pm (0.1 ft)
Next high tide : 11:58 pm (3.7 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 5:27 am
Moon phase : Waxing Crescent (23% illuminated)
Tide Station Location : Station #8453742
Common Questions About Tides

Jamestown, RI Tides - Nov 2072

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:183.85:08-0.15:50-0.17:185:39Waning Gibbous1Tue
2Wed12:543.21:183.76:020.06:460.07:195:38Third Quarter2Wed
3Thu1:573.32:203.77:050.27:540.07:205:37Third Quarter3Thu
4Fri2:593.53:223.78:240.29:10-0.17:225:35Third Quarter4Fri
5Sat4:003.74:233.79:470.110:15-0.27:235:34Waning Crescent5Sat
6Sun4:004.04:243.89:590.010:11-0.46:244:33Waning Crescent6Sun
7Mon4:584.35:213.911:02-0.211:03-0.56:254:32Waning Crescent7Mon
8Tue5:504.66:123.911:58-0.311:51-0.56:264:31New Moon8Tue
9Wed6:374.76:583.912:48-0.46:284:30New Moon9Wed
10Thu7:214.77:433.812:36-0.51:34-0.46:294:29New Moon10Thu
11Fri8:054.68:293.71:19-0.42:19-0.36:304:28New Moon11Fri
12Sat8:514.49:183.52:01-0.33:00-0.26:314:27Waxing Crescent12Sat
13Sun9:394.210:093.32:44-0.13:390.06:324:26Waxing Crescent13Sun
14Mon10:303.911:023.23:270.14:160.16:344:25Waxing Crescent14Mon
15Tue11:213.711:573.14:100.34:560.36:354:25First Quarter15Tue
16Wed12:153.44:560.55:410.46:364:24First Quarter16Wed
17Thu12:543.11:113.35:490.86:440.66:374:23First Quarter17Thu
18Fri1:493.12:063.27:120.98:200.66:384:22First Quarter18Fri
19Sat2:433.23:003.19:130.89:080.56:404:22First Quarter19Sat
20Sun3:353.43:533.110:050.79:400.46:414:21Waxing Gibbous20Sun
21Mon4:263.54:453.110:430.610:110.36:424:20Waxing Gibbous21Mon
22Tue5:133.75:323.211:120.410:440.26:434:20Waxing Gibbous22Tue
23Wed5:553.96:133.211:400.311:210.16:444:19Waxing Gibbous23Wed
24Thu6:324.16:513.312:120.16:454:18Full Moon24Thu
25Fri7:084.27:283.312:480.06:464:18Full Moon25Fri
26Sat7:464.28:083.312:40-0.21:28-0.16:474:18Full Moon26Sat
27Sun8:264.28:523.31:24-0.32:12-0.36:494:17Waning Gibbous27Sun
28Mon9:124.29:433.42:12-0.32:58-0.36:504:17Waning Gibbous28Mon
29Tue10:034.110:383.43:02-0.33:46-0.46:514:16Waning Gibbous29Tue
30Wed10:584.011:373.53:54-0.24:35-0.36:524:16Waning Gibbous30Wed
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 8:41 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 transitional phase. Tonight's moon is 23% 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 Waxing Crescent (23% 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