Tides Today & Tomorrow in Jamestown, RI

TIDE TIMES for Thursday, July 16, 2026
The tide is currently falling in Jamestown, RI.
Next low tide : in 1h 37m at 3:45 am (-0.4 ft)
Next high tide : 9:58 am (3.8 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 5:25 am
Moon phase : Waxing Crescent (7% illuminated)
Tide Station Location : Station #8453742
Common Questions About Tides

Jamestown, RI Tides - Aug 2069

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:203.37:384.112:410.312:290.05:418:02Full Moon1Thu
2Fri8:003.58:174.21:180.01:16-0.15:428:01Full Moon2Fri
3Sat8:403.78:574.21:57-0.22:04-0.35:438:00Full Moon3Sat
4Sun9:233.99:404.12:39-0.42:53-0.35:447:58Full Moon4Sun
5Mon10:104.010:284.03:23-0.63:44-0.45:457:57Waning Gibbous5Mon
6Tue11:014.111:193.94:08-0.74:34-0.35:467:56Waning Gibbous6Tue
7Wed11:544.24:54-0.75:25-0.25:477:55Waning Gibbous7Wed
8Thu12:143.712:514.15:42-0.66:200.05:487:53Third Quarter8Thu
9Fri1:123.51:524.16:34-0.47:260.25:497:52Third Quarter9Fri
10Sat2:143.32:534.17:37-0.19:030.35:507:51Third Quarter10Sat
11Sun3:183.33:554.08:560.010:340.35:517:50Waning Crescent11Sun
12Mon4:223.24:584.110:160.111:420.25:527:48Waning Crescent12Mon
13Tue5:273.35:594.111:270.05:537:47Waning Crescent13Tue
14Wed6:263.56:524.212:400.012:290.05:547:45Waning Crescent14Wed
15Thu7:163.67:374.21:270.01:200.05:557:44New Moon15Thu
16Fri8:003.78:184.12:07-0.12:010.05:567:42New Moon16Fri
17Sat8:403.88:564.02:390.02:350.15:577:41New Moon17Sat
18Sun9:193.89:353.83:010.03:050.15:587:40New Moon18Sun
19Mon10:003.710:153.63:230.03:360.25:597:38Waxing Crescent19Mon
20Tue10:423.710:583.43:500.04:110.26:007:37Waxing Crescent20Tue
21Wed11:263.611:433.24:230.04:480.36:017:35Waxing Crescent21Wed
22Thu12:133.54:590.15:280.46:027:34Waxing Crescent22Thu
23Fri12:303.01:033.45:380.16:120.56:037:32First Quarter23Fri
24Sat1:222.91:573.46:220.37:040.76:047:30First Quarter24Sat
25Sun2:182.82:523.37:140.48:130.86:057:29First Quarter25Sun
26Mon3:162.73:483.48:190.59:300.76:067:27First Quarter26Mon
27Tue4:132.84:443.59:260.510:300.66:077:26Waxing Gibbous27Tue
28Wed5:112.95:383.610:250.311:190.46:087:24Waxing Gibbous28Wed
29Thu6:053.26:283.811:190.16:097:22Waxing Gibbous29Thu
30Fri6:523.57:124.012:030.112:11-0.16:107:21Waxing Gibbous30Fri
31Sat7:343.97:534.112:46-0.21:01-0.36:117:19Full Moon31Sat
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 6:51 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 7% 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 Crescent (7% 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