Tides Today & Tomorrow in Newport, RI

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently falling in Newport, RI.
Next low tide : in 24m at 6:18 pm (0.8 ft)
Next high tide (tomorrow) : 1:10 am (3.1 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 - Apr 1930

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:593.49:143.92:30-0.32:22-0.35:296:09Waxing Crescent1Tue
2Wed9:433.39:593.83:06-0.22:58-0.25:276:10Waxing Crescent2Wed
3Thu10:333.110:503.73:440.03:38-0.15:256:11Waxing Crescent3Thu
4Fri11:283.011:473.64:280.24:240.05:236:12Waxing Crescent4Fri
5Sat12:263.05:250.45:210.25:226:14First Quarter5Sat
6Sun12:493.51:283.07:010.56:360.45:206:15First Quarter6Sun
7Mon1:553.42:333.19:040.58:100.35:186:16First Quarter7Mon
8Tue3:053.53:403.410:020.39:400.25:176:17Waxing Gibbous8Tue
9Wed4:143.74:433.810:460.110:44-0.15:156:18Waxing Gibbous9Wed
10Thu5:133.85:394.211:23-0.111:37-0.35:146:19Waxing Gibbous10Thu
11Fri6:054.06:294.511:57-0.35:126:20Full Moon11Fri
12Sat6:534.07:164.612:27-0.412:31-0.35:106:21Full Moon12Sat
13Sun7:394.08:014.61:14-0.41:06-0.35:096:22Full Moon13Sun
14Mon8:243.88:464.51:57-0.41:42-0.35:076:23Full Moon14Mon
15Tue9:093.69:304.22:37-0.22:20-0.15:066:24Waning Gibbous15Tue
16Wed9:553.310:173.83:130.02:580.05:046:25Waning Gibbous16Wed
17Thu10:433.111:053.43:500.23:380.35:026:26Waning Gibbous17Thu
18Fri11:332.911:573.14:300.54:210.55:016:28Waning Gibbous18Fri
19Sat12:252.75:190.75:120.74:596:29Third Quarter19Sat
20Sun12:502.91:172.66:300.96:210.94:586:30Third Quarter20Sun
21Mon1:442.72:122.68:060.97:530.94:566:31Third Quarter21Mon
22Tue2:412.73:102.79:060.89:130.84:556:32Third Quarter22Tue
23Wed3:402.74:072.99:480.610:060.64:536:33Waning Crescent23Wed
24Thu4:312.84:543.110:230.410:500.34:526:34Waning Crescent24Thu
25Fri5:133.05:343.410:550.211:310.14:506:35Waning Crescent25Fri
26Sat5:523.26:113.711:270.04:496:36Waning Crescent26Sat
27Sun7:313.37:484.012:110.01:01-0.15:487:37New Moon27Sun
28Mon8:113.58:274.11:52-0.21:36-0.25:467:38New Moon28Mon
29Tue8:543.59:094.22:33-0.22:15-0.35:457:39New Moon29Tue
30Wed9:393.59:544.23:14-0.22:55-0.25:447:40Waxing Crescent30Wed
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 9:44 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