Tides Today & Tomorrow in Jamestown, RI

TIDE TIMES for Monday, June 29, 2026
The tide is currently rising in Jamestown, RI.
Next low tide (tomorrow) : 2:36 am (0.4 ft)
Next high tide : in 3h 01m at 8:25 pm (3.9 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:14 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8453742
Common Questions About Tides

Jamestown, RI Tides - Jan 2046

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:304.02:493.19:130.48:440.17:114:26Waning Crescent1Mon
2Tue3:304.03:523.010:230.39:460.17:114:27Waning Crescent2Tue
3Wed4:304.04:553.011:250.310:440.27:114:28Waning Crescent3Wed
4Thu5:264.15:503.012:190.27:114:29Waning Crescent4Thu
5Fri6:144.16:363.11:050.27:114:30New Moon5Fri
6Sat6:554.17:173.112:150.31:440.27:114:31New Moon6Sat
7Sun7:334.07:563.112:490.32:130.27:114:32New Moon7Sun
8Mon8:113.98:353.21:210.32:300.27:114:33New Moon8Mon
9Tue8:493.89:163.21:570.32:460.27:114:34Waxing Crescent9Tue
10Wed9:293.69:593.22:350.33:120.17:104:35Waxing Crescent10Wed
11Thu10:103.410:433.33:150.33:430.07:104:36Waxing Crescent11Thu
12Fri10:543.311:293.33:560.44:180.07:104:37Waxing Crescent12Fri
13Sat11:393.14:390.54:560.17:094:38First Quarter13Sat
14Sun12:183.312:292.95:260.65:390.27:094:39First Quarter14Sun
15Mon1:093.41:232.76:220.76:300.37:094:40First Quarter15Mon
16Tue2:033.52:182.67:320.87:300.37:084:41First Quarter16Tue
17Wed2:573.63:172.68:440.78:310.27:084:43Waxing Gibbous17Wed
18Thu3:553.74:192.79:470.69:290.17:074:44Waxing Gibbous18Thu
19Fri4:533.95:182.910:450.310:260.07:074:45Waxing Gibbous19Fri
20Sat5:454.26:093.211:390.111:23-0.27:064:46Waxing Gibbous20Sat
21Sun6:324.46:553.512:27-0.27:054:47Full Moon21Sun
22Mon7:164.57:413.812:19-0.41:13-0.47:054:49Full Moon22Mon
23Tue8:014.58:294.01:14-0.51:59-0.67:044:50Full Moon23Tue
24Wed8:484.49:204.22:08-0.52:44-0.77:034:51Waning Gibbous24Wed
25Thu9:394.210:134.23:03-0.53:29-0.77:024:52Waning Gibbous25Thu
26Fri10:314.011:084.23:55-0.34:13-0.77:024:53Waning Gibbous26Fri
27Sat11:253.74:47-0.14:58-0.57:014:55Third Quarter27Sat
28Sun12:054.112:233.45:440.25:49-0.27:004:56Third Quarter28Sun
29Mon1:044.01:233.17:100.56:530.16:594:57Third Quarter29Mon
30Tue2:053.92:262.98:590.68:210.36:584:59Third Quarter30Tue
31Wed3:063.83:302.810:140.59:410.46:575:00Waning Crescent31Wed
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 11:30 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