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 2h 17m 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 - Feb 1931

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:043.96:303.412:22-0.36:575:00Full Moon1Sun
2Mon6:554.27:203.81:09-0.56:565:01Full Moon2Mon
3Tue7:444.48:104.012:52-0.81:53-0.76:555:02Full Moon3Tue
4Wed8:334.49:004.21:46-0.92:35-0.76:545:04Waning Gibbous4Wed
5Thu9:224.39:514.22:39-0.83:13-0.76:535:05Waning Gibbous5Thu
6Fri10:134.010:444.23:30-0.63:51-0.66:525:06Waning Gibbous6Fri
7Sat11:063.611:394.04:21-0.34:30-0.46:515:07Waning Gibbous7Sat
8Sun12:013.35:190.05:15-0.16:505:09Third Quarter8Sun
9Mon12:363.812:583.06:450.36:080.16:485:10Third Quarter9Mon
10Tue1:343.51:572.78:380.47:170.46:475:11Third Quarter10Tue
11Wed2:383.33:032.69:520.58:460.56:465:12Waning Crescent11Wed
12Thu3:483.24:122.610:470.410:000.46:455:14Waning Crescent12Thu
13Fri4:533.25:122.811:320.410:490.36:435:15Waning Crescent13Fri
14Sat5:463.36:023.012:070.36:425:16Waning Crescent14Sat
15Sun6:313.46:453.112:360.26:415:17New Moon15Sun
16Mon7:103.57:243.212:090.01:020.16:405:19New Moon16Mon
17Tue7:463.58:013.312:49-0.11:30-0.16:385:20New Moon17Tue
18Wed8:193.48:353.31:30-0.21:59-0.26:375:21New Moon18Wed
19Thu8:523.39:083.32:09-0.22:28-0.26:355:22Waxing Crescent19Thu
20Fri9:243.19:413.22:46-0.22:57-0.26:345:24Waxing Crescent20Fri
21Sat9:583.010:153.13:21-0.13:26-0.16:335:25Waxing Crescent21Sat
22Sun10:352.810:523.03:550.13:560.06:315:26Waxing Crescent22Sun
23Mon11:182.611:343.04:310.34:290.16:305:27Waxing Crescent23Mon
24Tue12:052.55:140.45:110.26:285:28First Quarter24Tue
25Wed12:232.912:582.46:120.66:070.36:275:30First Quarter25Wed
26Thu1:192.91:582.47:410.67:180.36:255:31First Quarter26Thu
27Fri2:243.03:052.59:230.58:360.26:245:32Waxing Gibbous27Fri
28Sat3:383.24:152.810:250.29:49-0.16:225:33Waxing Gibbous28Sat
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