Tides Today & Tomorrow in Jamestown, RI

TIDE TIMES for Thursday, July 30, 2026
The tide is currently falling in Jamestown, RI.
Next low tide (tomorrow) : in 3h 42m at 2:59 am (0.0 ft)
Next high tide (tomorrow) : 9:39 am (3.4 ft)
Sunset today : 8:05 pm
Sunrise tomorrow : 5:38 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #8453742
Common Questions About Tides

Jamestown, RI Tides - Apr 2085

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:283.51:582.86:550.76:530.76:267:11First Quarter1Sun
2Mon2:263.32:582.89:140.88:130.96:257:12First Quarter2Mon
3Tue3:243.23:562.910:250.710:210.86:237:13First Quarter3Tue
4Wed4:203.24:533.011:100.611:180.76:217:14Waxing Gibbous4Wed
5Thu5:163.25:463.211:430.56:207:15Waxing Gibbous5Thu
6Fri6:063.26:323.512:000.612:010.46:187:16Waxing Gibbous6Fri
7Sat6:503.37:103.712:300.412:200.36:167:17Waxing Gibbous7Sat
8Sun7:273.47:463.912:550.312:470.26:157:18Full Moon8Sun
9Mon8:023.48:204.01:250.21:190.06:137:20Full Moon9Mon
10Tue8:373.48:554.11:590.01:56-0.16:117:21Full Moon10Tue
11Wed9:143.39:344.22:37-0.12:36-0.36:107:22Full Moon11Wed
12Thu9:563.310:194.13:20-0.23:19-0.36:087:23Waning Gibbous12Thu
13Fri10:443.211:094.14:05-0.24:07-0.36:077:24Waning Gibbous13Fri
14Sat11:383.24:52-0.24:56-0.26:057:25Waning Gibbous14Sat
15Sun12:054.012:373.25:42-0.15:49-0.16:047:26Third Quarter15Sun
16Mon1:053.91:413.26:370.06:500.16:027:27Third Quarter16Mon
17Tue2:083.82:453.47:450.18:090.36:007:28Third Quarter17Tue
18Wed3:113.73:483.69:070.19:410.25:597:29Third Quarter18Wed
19Thu4:123.74:493.810:16-0.110:580.15:577:30Waning Crescent19Thu
20Fri5:143.75:494.111:12-0.25:567:32Waning Crescent20Fri
21Sat6:123.76:424.412:02-0.112:03-0.35:547:33Waning Crescent21Sat
22Sun7:033.87:284.512:58-0.212:48-0.35:537:34New Moon22Sun
23Mon7:493.78:114.61:47-0.21:30-0.35:527:35New Moon23Mon
24Tue8:323.68:534.52:31-0.22:08-0.35:507:36New Moon24Tue
25Wed9:153.59:364.33:11-0.12:46-0.25:497:37New Moon25Wed
26Thu9:593.310:224.13:480.03:260.05:477:38Waxing Crescent26Thu
27Fri10:473.211:093.94:230.14:060.15:467:39Waxing Crescent27Fri
28Sat11:383.011:593.64:570.24:470.35:457:40Waxing Crescent28Sat
29Sun12:312.95:340.45:300.55:437:41Waxing Crescent29Sun
30Mon12:513.41:262.96:150.56:180.75:427:42First Quarter30Mon
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 6:19 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 99% 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 (99% 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