Tides Today & Tomorrow in Jamestown, RI

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently falling in Jamestown, RI.
Next low tide : in 4h 29m at 1:52 pm (0.3 ft)
Next high tide : 9:01 pm (3.8 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:15 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8453742
Common Questions About Tides

Jamestown, RI Tides - Nov 2046

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:244.410:533.33:30-0.34:33-0.27:175:40Waxing Crescent1Thu
2Fri11:184.111:503.24:19-0.15:200.07:185:39Waxing Crescent2Fri
3Sat12:143.85:080.26:070.37:205:37First Quarter3Sat
4Sun12:503.112:123.64:590.56:090.56:214:36First Quarter4Sun
5Mon12:503.11:113.46:040.77:590.56:224:35First Quarter5Mon
6Tue1:503.12:083.28:290.89:010.56:234:34First Quarter6Tue
7Wed2:453.23:023.19:360.79:440.46:244:33Waxing Gibbous7Wed
8Thu3:383.43:563.010:280.610:170.46:264:32Waxing Gibbous8Thu
9Fri4:293.54:483.011:120.510:390.46:274:31Waxing Gibbous9Fri
10Sat5:153.75:333.011:470.410:580.36:284:30Waxing Gibbous10Sat
11Sun5:553.86:133.112:110.46:294:29Full Moon11Sun
12Mon6:313.96:493.012:290.36:304:28Full Moon12Mon
13Tue7:054.07:233.012:530.36:324:27Full Moon13Tue
14Wed7:394.07:593.012:300.11:250.26:334:26Full Moon14Wed
15Thu8:164.08:392.91:090.02:030.16:344:25Waning Gibbous15Thu
16Fri8:573.99:252.91:520.02:450.06:354:24Waning Gibbous16Fri
17Sat9:433.810:173.02:390.03:290.06:364:24Waning Gibbous17Sat
18Sun10:353.711:133.03:290.04:150.06:384:23Waning Gibbous18Sun
19Mon11:313.64:220.15:040.06:394:22Third Quarter19Mon
20Tue12:123.212:303.55:190.36:000.06:404:21Third Quarter20Tue
21Wed1:123.41:303.46:280.47:050.06:414:21Third Quarter21Wed
22Thu2:113.72:303.47:530.38:11-0.16:424:20Third Quarter22Thu
23Fri3:094.03:293.49:100.29:10-0.36:434:19Waning Crescent23Fri
24Sat4:074.34:303.410:160.010:03-0.46:454:19Waning Crescent24Sat
25Sun5:044.55:273.511:16-0.110:55-0.46:464:18Waning Crescent25Sun
26Mon5:564.76:183.512:10-0.26:474:18New Moon26Mon
27Tue6:434.87:053.51:01-0.36:484:17New Moon27Tue
28Wed7:294.77:523.512:35-0.41:50-0.26:494:17New Moon28Wed
29Thu8:154.58:413.41:23-0.32:37-0.26:504:17Waxing Crescent29Thu
30Fri9:034.39:333.32:11-0.13:21-0.16:514:16Waxing Crescent30Fri
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 5:26 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 100% 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 (100% 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