Tides Today & Tomorrow in Jamestown, RI

TIDE TIMES for Sunday, June 28, 2026
The tide is currently falling in Jamestown, RI.
Next low tide : in 2h 35m at 12:37 pm (0.4 ft)
Next high tide : 7:50 pm (3.9 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:14 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #8453742
Common Questions About Tides

Jamestown, RI Tides - Aug 2044

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:212.92:593.67:390.410:010.85:418:02First Quarter1Mon
2Tue3:172.73:543.58:520.611:070.85:428:01First Quarter2Tue
3Wed4:152.64:523.510:030.65:438:00Waxing Gibbous3Wed
4Thu5:172.65:493.512:040.710:57 AM0.65:447:58Waxing Gibbous4Thu
5Fri6:142.76:383.612:520.611:42 AM0.65:457:57Waxing Gibbous5Fri
6Sat7:012.87:193.71:300.512:200.55:467:56Waxing Gibbous6Sat
7Sun7:403.07:553.81:550.512:560.45:477:55Full Moon7Sun
8Mon8:163.18:293.82:060.41:320.35:487:53Full Moon8Mon
9Tue8:503.39:033.82:200.22:100.25:497:52Full Moon9Tue
10Wed9:263.49:393.72:460.12:510.15:507:51Full Moon10Wed
11Thu10:053.510:183.63:18-0.13:340.05:517:49Waning Gibbous11Thu
12Fri10:473.611:003.43:55-0.34:180.05:527:48Waning Gibbous12Fri
13Sat11:333.711:473.34:34-0.35:030.05:537:47Waning Gibbous13Sat
14Sun12:233.85:16-0.45:510.15:547:45Third Quarter14Sun
15Mon12:393.11:193.86:01-0.36:460.35:557:44Third Quarter15Mon
16Tue1:372.92:193.86:53-0.17:560.45:567:42Third Quarter16Tue
17Wed2:412.93:223.97:580.09:210.55:577:41Third Quarter17Wed
18Thu3:472.94:274.09:130.010:410.35:587:39Waning Crescent18Thu
19Fri4:563.05:324.110:260.011:500.15:597:38Waning Crescent19Fri
20Sat6:023.36:324.311:35-0.16:007:36Waning Crescent20Sat
21Sun6:593.67:234.412:48-0.112:40-0.26:017:35New Moon21Sun
22Mon7:483.98:094.41:37-0.31:38-0.36:027:33New Moon22Mon
23Tue8:334.18:524.32:20-0.42:30-0.36:037:32New Moon23Tue
24Wed9:184.29:374.12:59-0.43:19-0.36:047:30New Moon24Wed
25Thu10:044.110:223.83:36-0.44:04-0.26:057:29Waxing Crescent25Thu
26Fri10:514.011:093.54:11-0.34:440.06:067:27Waxing Crescent26Fri
27Sat11:403.911:583.24:45-0.25:220.26:077:26Waxing Crescent27Sat
28Sun12:303.75:200.06:020.56:087:24First Quarter28Sun
29Mon12:493.01:233.55:580.26:500.76:097:22First Quarter29Mon
30Tue1:452.72:203.46:420.58:580.96:107:21First Quarter30Tue
31Wed2:432.63:183.37:430.710:330.96:117:19First Quarter31Wed
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 4:13 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 98% 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 (98% 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