Tides Today & Tomorrow in Jamestown, RI

TIDE TIMES for Saturday, June 27, 2026
The tide is currently rising in Jamestown, RI.
Next low tide : 12:04 pm (0.5 ft)
Next high tide : in 3h 40m at 6:51 am (2.8 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:13 am
Moon phase : Waxing Gibbous (95% illuminated)
Tide Station Location : Station #8453742
Common Questions About Tides

Jamestown, RI Tides - Apr 2009

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:434.01:143.16:180.16:240.06:277:10First Quarter1Wed
2Thu1:473.92:213.17:260.37:360.26:267:11First Quarter2Thu
3Fri2:523.83:283.39:040.39:150.36:247:12First Quarter3Fri
4Sat3:563.74:333.510:260.210:450.26:227:14Waxing Gibbous4Sat
5Sun5:003.75:353.711:250.011:540.16:217:15Waxing Gibbous5Sun
6Mon5:593.86:304.012:14-0.16:197:16Waxing Gibbous6Mon
7Tue6:513.87:164.212:50-0.112:56-0.26:177:17Waxing Gibbous7Tue
8Wed7:363.87:584.31:38-0.11:32-0.26:167:18Full Moon8Wed
9Thu8:163.78:374.32:19-0.12:02-0.26:147:19Full Moon9Thu
10Fri8:553.59:154.22:54-0.12:31-0.16:127:20Full Moon10Fri
11Sat9:353.49:564.13:250.03:030.06:117:21Waning Gibbous11Sat
12Sun10:173.210:393.93:550.13:380.16:097:22Waning Gibbous12Sun
13Mon11:033.011:263.74:260.24:160.26:087:23Waning Gibbous13Mon
14Tue11:522.85:020.34:560.36:067:24Waning Gibbous14Tue
15Wed12:153.512:452.75:410.55:390.56:047:25Third Quarter15Wed
16Thu1:093.31:422.76:260.66:290.76:037:27Third Quarter16Thu
17Fri2:053.22:412.77:240.77:330.86:017:28Third Quarter17Fri
18Sat3:023.13:372.98:410.78:570.86:007:29Third Quarter18Sat
19Sun3:573.14:313.19:470.610:090.75:587:30Waning Crescent19Sun
20Mon4:513.15:233.310:300.411:030.55:577:31Waning Crescent20Mon
21Tue5:443.26:113.611:090.311:490.35:557:32Waning Crescent21Tue
22Wed6:313.36:543.911:480.15:547:33Waning Crescent22Wed
23Thu7:133.47:334.212:330.112:28-0.15:527:34New Moon23Thu
24Fri7:523.48:124.41:16-0.11:10-0.35:517:35New Moon24Fri
25Sat8:323.58:544.52:00-0.21:54-0.45:497:36New Moon25Sat
26Sun9:163.59:404.52:46-0.32:41-0.55:487:37New Moon26Sun
27Mon10:053.410:314.43:35-0.33:32-0.55:477:38Waxing Crescent27Mon
28Tue11:013.311:284.34:25-0.34:24-0.45:457:40Waxing Crescent28Tue
29Wed12:013.35:16-0.25:19-0.25:447:41Waxing Crescent29Wed
30Thu12:274.11:043.36:10-0.16:180.15:437:42First Quarter30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8453742)

Common Questions About Jamestown, RI Tides

Show All
What time does the tide turn (slack tide) in Jamestown, RI today?

Slack tide in Jamestown, RI is approximately 9:27 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 95% 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 Gibbous (95% 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