Nearby Harbors
41.5865’ N, 71.2919’ W

Portsmouth, Melville, RI

67°
H -°
L 63°
S
7mph
High tide
9:42 pm
Photo Credits

Tides Today & Tomorrow in Portsmouth, Melville, RI

TIDE TIMES for Saturday, September 12, 2026
The tide is currently rising in Portsmouth, Melville, RI.
Next low tide (tomorrow) : 2:58 am (0.0 ft)
Next high tide : in 2h 31m at 9:42 pm (4.4 ft)
Sunset today : 7:00 pm
Sunrise tomorrow : 6:22 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #8452555
Common Questions About Tides

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Portsmouth, Melville, RI Tides - Nov 2080

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:054.411:413.63:450.04:440.37:185:39Waning Gibbous1Fri
2Sat12:034.34:330.15:370.57:195:37Waning Gibbous2Sat
3Sun12:413.612:054.14:270.45:590.76:204:36Third Quarter3Sun
4Mon12:423.61:074.05:340.67:580.66:214:35Third Quarter4Mon
5Tue1:433.72:094.07:110.78:590.56:234:34Third Quarter5Tue
6Wed2:453.93:133.98:580.59:440.36:244:33Waning Crescent6Wed
7Thu3:484.24:154.010:040.310:190.16:254:32Waning Crescent7Thu
8Fri4:474.65:124.010:540.110:500.06:264:31Waning Crescent8Fri
9Sat5:404.86:034.111:390.011:22-0.16:284:30Waning Crescent9Sat
10Sun6:285.06:504.112:210.06:294:29New Moon10Sun
11Mon7:145.07:354.01:020.06:304:28New Moon11Mon
12Tue7:584.98:193.912:33-0.11:410.06:314:27New Moon12Tue
13Wed8:424.69:043.71:140.02:180.26:324:26Waxing Crescent13Wed
14Thu9:264.39:493.51:560.12:550.36:344:25Waxing Crescent14Thu
15Fri10:113.910:363.32:390.33:340.56:354:24Waxing Crescent15Fri
16Sat10:593.611:263.13:220.54:150.76:364:23Waxing Crescent16Sat
17Sun11:483.34:080.75:050.96:374:22First Quarter17Sun
18Mon12:173.012:373.15:010.96:081.06:384:22First Quarter18Mon
19Tue1:062.91:233.06:101.17:190.96:404:21First Quarter19Tue
20Wed1:543.02:083.07:381.18:130.86:414:20First Quarter20Wed
21Thu2:433.12:582.98:510.98:560.66:424:20Waxing Gibbous21Thu
22Fri3:343.33:513.09:440.79:340.36:434:19Waxing Gibbous22Fri
23Sat4:243.64:433.210:290.410:110.16:444:18Waxing Gibbous23Sat
24Sun5:093.95:313.411:100.210:49-0.16:454:18Waxing Gibbous24Sun
25Mon5:534.26:173.611:510.011:29-0.36:464:17Full Moon25Mon
26Tue6:374.57:033.712:34-0.26:474:17Full Moon26Tue
27Wed7:224.67:513.812:11-0.41:20-0.26:494:17Full Moon27Wed
28Thu8:104.78:403.912:57-0.42:07-0.26:504:16Full Moon28Thu
29Fri9:004.79:323.81:45-0.42:54-0.26:514:16Waning Gibbous29Fri
30Sat9:544.510:273.82:35-0.33:430.06:524:15Waning Gibbous30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8452555)

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The US Harbors tide chart design is protected by copyright. It may be printed for personal use only.
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Common Questions About Portsmouth, Melville, RI Tides

Collapse All
Is this week a spring tide or neap tide in Portsmouth, Melville, RI?

Portsmouth, Melville, RI is currently in a spring phase. Tonight's moon is 3% 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 Portsmouth, Melville, 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 Portsmouth, Melville, RI?

Tide predictions for Portsmouth, Melville, 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 Portsmouth, Melville, RI?

Tide data for Portsmouth, Melville, RI is sourced from NOAA Station #8452555. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8452555.

What is the moon phase in Portsmouth, Melville, RI tonight?

Tonight the moon over Portsmouth, Melville, RI is New Moon (3% illuminated). This places Portsmouth, Melville, 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

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