Tides Today & Tomorrow in Portsmouth, Melville, RI

TIDE TIMES for Sunday, June 28, 2026
The tide is currently rising in Portsmouth, Melville, RI.
Next low tide : 12:32 pm (0.5 ft)
Next high tide : in 1h 32m at 7:42 am (3.3 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:13 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #8452555
Common Questions About Tides

Portsmouth, Melville, RI Tides - Nov 2043

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:164.57:343.712:580.212:470.26:174:40New Moon1Sun
2Mon7:534.48:113.612:310.21:240.26:184:39New Moon2Mon
3Tue8:284.28:483.51:080.22:010.26:194:37New Moon3Tue
4Wed9:034.09:253.31:460.32:390.36:204:36Waxing Crescent4Wed
5Thu9:393.810:063.12:250.43:170.56:214:35Waxing Crescent5Thu
6Fri10:193.510:502.93:040.53:550.76:234:34Waxing Crescent6Fri
7Sat11:053.411:392.93:440.74:370.96:244:33Waxing Crescent7Sat
8Sun11:553.34:280.95:311.06:254:32First Quarter8Sun
9Mon12:292.912:473.25:241.06:421.06:264:31First Quarter9Mon
10Tue1:213.01:393.36:401.07:500.86:284:30First Quarter10Tue
11Wed2:153.22:353.48:050.88:410.56:294:29First Quarter11Wed
12Thu3:123.63:353.59:150.69:240.26:304:28Waxing Gibbous12Thu
13Fri4:104.04:343.710:100.210:06-0.16:314:27Waxing Gibbous13Fri
14Sat5:044.55:294.011:00-0.110:49-0.46:324:26Waxing Gibbous14Sat
15Sun5:554.96:214.111:49-0.311:33-0.66:344:25Full Moon15Sun
16Mon6:455.27:124.312:39-0.56:354:24Full Moon16Mon
17Tue7:365.38:044.312:20-0.71:33-0.56:364:23Full Moon17Tue
18Wed8:285.38:564.31:10-0.72:26-0.46:374:22Waning Gibbous18Wed
19Thu9:215.19:514.12:01-0.53:19-0.26:384:22Waning Gibbous19Thu
20Fri10:184.810:494.02:54-0.34:150.16:404:21Waning Gibbous20Fri
21Sat11:184.411:503.93:480.05:290.46:414:20Waning Gibbous21Sat
22Sun12:194.14:480.47:020.56:424:20Third Quarter22Sun
23Mon12:503.81:183.86:170.78:100.56:434:19Third Quarter23Mon
24Tue1:503.82:163.68:230.89:000.56:444:18Third Quarter24Tue
25Wed2:493.83:153.49:280.79:370.56:454:18Waning Crescent25Wed
26Thu3:493.94:133.310:150.610:020.56:464:17Waning Crescent26Thu
27Fri4:444.05:053.310:500.510:240.46:484:17Waning Crescent27Fri
28Sat5:314.15:503.311:210.410:520.36:494:17Waning Crescent28Sat
29Sun6:134.16:313.311:520.311:260.26:504:16New Moon29Sun
30Mon6:514.17:103.312:270.26:514:16New Moon30Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8452555)

Common Questions About Portsmouth, Melville, RI Tides

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

Slack tide in Portsmouth, Melville, RI is approximately 10:07 am — 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 Portsmouth, Melville, RI?

Portsmouth, Melville, RI is currently in a spring phase. Tonight's moon is 98% 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 Full Moon (98% 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