Tides Today & Tomorrow in Newport, RI

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently rising in Newport, RI.
Next low tide : 6:18 pm (0.8 ft)
Next high tide : in 3h 05m at 12:53 pm (3.8 ft)
Sunset today : 7:40 pm
Sunrise tomorrow : 5:57 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8452660
Common Questions About Tides

Newport, RI Tides - Mar 1931

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:473.55:163.311:130.010:51-0.46:205:34Waxing Gibbous1Sun
2Mon5:453.96:103.711:57-0.311:48-0.76:195:35Waxing Gibbous2Mon
3Tue6:364.27:014.212:40-0.66:175:37Full Moon3Tue
4Wed7:254.47:504.512:43-0.81:22-0.76:165:38Full Moon4Wed
5Thu8:134.48:394.61:38-0.92:02-0.86:145:39Full Moon5Thu
6Fri9:024.29:284.62:29-0.82:41-0.86:135:40Waning Gibbous6Fri
7Sat9:513.910:204.43:18-0.63:19-0.66:115:41Waning Gibbous7Sat
8Sun10:433.611:144.14:05-0.33:58-0.46:095:42Waning Gibbous8Sun
9Mon11:383.24:550.04:400.06:085:44Third Quarter9Mon
10Tue12:113.712:362.96:030.45:310.36:065:45Third Quarter10Tue
11Wed1:103.41:352.78:120.66:400.66:045:46Third Quarter11Wed
12Thu2:143.12:402.69:300.68:420.76:035:47Third Quarter12Thu
13Fri3:253.03:492.710:240.610:040.66:015:48Waning Crescent13Fri
14Sat4:323.04:502.811:030.510:460.45:595:49Waning Crescent14Sat
15Sun5:253.15:393.011:320.411:210.35:585:50Waning Crescent15Sun
16Mon6:073.26:213.211:560.311:560.15:565:51Waning Crescent16Mon
17Tue6:433.36:573.412:220.15:545:53New Moon17Tue
18Wed7:173.47:313.512:340.012:50-0.15:535:54New Moon18Wed
19Thu7:483.48:033.51:12-0.11:20-0.25:515:55New Moon19Thu
20Fri8:203.38:343.51:50-0.21:51-0.25:495:56New Moon20Fri
21Sat8:533.29:053.52:25-0.22:21-0.25:485:57Waxing Crescent21Sat
22Sun9:283.09:393.42:58-0.12:51-0.15:465:58Waxing Crescent22Sun
23Mon10:082.910:183.33:300.03:220.05:445:59Waxing Crescent23Mon
24Tue10:532.711:043.24:040.23:580.15:426:00Waxing Crescent24Tue
25Wed11:442.611:583.14:430.44:410.25:416:01First Quarter25Wed
26Thu12:392.65:370.65:380.35:396:02First Quarter26Thu
27Fri12:583.11:392.77:030.66:520.45:376:04First Quarter27Fri
28Sat2:033.22:442.88:580.58:180.35:366:05First Quarter28Sat
29Sun3:153.33:523.29:590.39:380.05:346:06Waxing Gibbous29Sun
30Mon4:233.64:543.610:440.010:42-0.35:326:07Waxing Gibbous30Mon
31Tue5:233.95:494.111:25-0.311:38-0.55:316:08Waxing Gibbous31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8452660)

Common Questions About Newport, RI Tides

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What time does the tide turn (slack tide) in Newport, RI today?

Slack tide in Newport, RI is approximately 3:35 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 Newport, RI?

Newport, RI is currently in a transitional phase. Tonight's moon is 36% 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 shifting between spring and neap.

What datum are Newport, 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 Newport, RI?

Tide predictions for Newport, 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 Newport, RI?

Tide data for Newport, RI is sourced from NOAA Station #8452660. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8452660.

What is the moon phase in Newport, RI tonight?

Tonight the moon over Newport, RI is First Quarter (36% illuminated). This places Newport, RI in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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