Nearby Harbors
41.5865’ N, 71.2919’ W

Portsmouth, Melville, RI

69°
H -°
L 64°
SSW
6mph
High tide
5:59 am
Photo Credits

Tides Today & Tomorrow in Portsmouth, Melville, RI

TIDE TIMES for Sunday, August 23, 2026
The tide is currently rising in Portsmouth, Melville, RI.
Next low tide (tomorrow) : 11:15 am (0.8 ft)
Next high tide (tomorrow) : in 6h 19m at 5:59 am (3.1 ft)
Sunset today : 7:33 pm
Sunrise tomorrow : 6:02 am
Moon phase : Waxing Gibbous (81% illuminated)
Tide Station Location : Station #8452555
Common Questions About Tides

Featured Local Businesses

East Passage 24. Photo by Tyler Fields Photography

East Passage Boatwrights
Oldport Marine

Oldport Marine

Becket & Company Yacht Management Newport
Newport International Boat Show

Newport International Boat Show

Portsmouth, Melville, RI Tides - Nov 2017

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:014.16:244.011:490.111:55-0.27:175:39Waxing Gibbous1Wed
2Thu6:494.57:124.212:34-0.27:185:38Full Moon2Thu
3Fri7:364.98:014.512:34-0.41:20-0.47:195:37Full Moon3Fri
4Sat8:235.18:494.61:17-0.62:08-0.57:215:36Full Moon4Sat
5Sun8:125.28:404.61:02-0.71:58-0.56:224:35Full Moon5Sun
6Mon9:025.29:324.51:49-0.62:47-0.46:234:34Waning Gibbous6Mon
7Tue9:565.010:284.32:37-0.53:37-0.26:244:32Waning Gibbous7Tue
8Wed10:534.811:274.23:27-0.24:330.16:264:31Waning Gibbous8Wed
9Thu11:534.54:200.16:000.46:274:30Third Quarter9Thu
10Fri12:284.112:554.35:250.57:480.56:284:29Third Quarter10Fri
11Sat1:284.01:564.17:110.78:540.46:294:28Third Quarter11Sat
12Sun2:304.02:583.99:030.69:440.46:304:27Waning Crescent12Sun
13Mon3:324.14:013.910:030.510:230.36:324:26Waning Crescent13Mon
14Tue4:324.34:573.910:470.410:500.36:334:26Waning Crescent14Tue
15Wed5:254.45:473.911:220.311:110.26:344:25Waning Crescent15Wed
16Thu6:114.56:323.911:530.211:370.16:354:24New Moon16Thu
17Fri6:544.57:133.912:250.26:364:23New Moon17Fri
18Sat7:344.57:533.812:100.11:000.16:384:22New Moon18Sat
19Sun8:124.48:313.712:470.01:380.16:394:21New Moon19Sun
20Mon8:494.29:103.51:270.12:160.16:404:21Waxing Crescent20Mon
21Tue9:263.99:493.32:070.12:550.26:414:20Waxing Crescent21Tue
22Wed10:043.710:303.22:470.33:320.36:424:20Waxing Crescent22Wed
23Thu10:443.511:143.03:270.44:110.56:434:19Waxing Crescent23Thu
24Fri11:283.34:090.64:540.66:454:18First Quarter24Fri
25Sat12:013.012:153.24:560.85:450.76:464:18First Quarter25Sat
26Sun12:483.01:043.25:560.96:460.66:474:17First Quarter26Sun
27Mon1:383.21:553.27:110.87:470.56:484:17First Quarter27Mon
28Tue2:313.42:523.38:280.68:420.26:494:16Waxing Gibbous28Tue
29Wed3:283.73:533.59:320.49:31-0.16:504:16Waxing Gibbous29Wed
30Thu4:274.14:533.710:240.010:17-0.46:514:16Waxing Gibbous30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8452555)

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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 81% 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 Waxing Gibbous (81% 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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