Tides Today & Tomorrow in Portsmouth, Melville, RI

TIDE TIMES for Friday, June 12, 2026
The tide is currently rising in Portsmouth, Melville, RI.
Next low tide : 11:02 am (-0.2 ft)
Next high tide : in 4h 55m at 5:50 am (3.6 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 5:10 am
Moon phase : Waning Crescent (9% illuminated)
Tide Station Location : Station #8452555
Common Questions About Tides

Portsmouth, Melville, RI Tides - Apr 2028

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:323.61:123.15:550.45:580.26:267:10First Quarter1Sat
2Sun1:313.62:103.17:020.67:050.46:247:12First Quarter2Sun
3Mon2:333.63:123.38:420.68:280.46:237:13First Quarter3Mon
4Tue3:383.64:173.610:070.49:560.26:217:14Waxing Gibbous4Tue
5Wed4:473.85:224.010:590.111:08-0.16:197:15Waxing Gibbous5Wed
6Thu5:514.06:204.511:42-0.26:187:16Waxing Gibbous6Thu
7Fri6:474.37:134.912:06-0.412:22-0.46:167:17Waxing Gibbous7Fri
8Sat7:384.48:035.212:59-0.61:03-0.66:157:18Full Moon8Sat
9Sun8:284.58:525.31:52-0.71:45-0.66:137:19Full Moon9Sun
10Mon9:164.49:405.22:42-0.62:28-0.66:117:20Full Moon10Mon
11Tue10:054.210:294.93:28-0.53:11-0.46:107:21Waning Gibbous11Tue
12Wed10:543.911:204.54:10-0.23:53-0.26:087:22Waning Gibbous12Wed
13Thu11:463.74:510.14:360.16:077:24Waning Gibbous13Thu
14Fri12:144.012:413.45:340.45:220.56:057:25Waning Gibbous14Fri
15Sat1:093.71:363.26:270.76:170.86:037:26Third Quarter15Sat
16Sun2:053.32:313.17:570.97:331.06:027:27Third Quarter16Sun
17Mon3:013.13:283.19:200.99:201.06:007:28Third Quarter17Mon
18Tue4:003.04:283.110:060.810:260.85:597:29Third Quarter18Tue
19Wed4:583.05:243.310:410.711:120.65:577:30Waning Crescent19Wed
20Thu5:483.16:103.511:140.511:520.45:567:31Waning Crescent20Thu
21Fri6:303.26:493.711:470.35:547:32Waning Crescent21Fri
22Sat7:083.37:243.912:310.212:200.15:537:33Waning Crescent22Sat
23Sun7:443.47:584.11:100.112:540.05:517:34New Moon23Sun
24Mon8:203.58:334.21:50-0.11:30-0.15:507:36New Moon24Mon
25Tue8:583.69:104.22:29-0.12:07-0.15:487:37New Moon25Tue
26Wed9:393.69:504.23:06-0.12:45-0.15:477:38New Moon26Wed
27Thu10:233.510:354.13:420.03:250.05:467:39Waxing Crescent27Thu
28Fri11:113.511:244.04:190.14:070.05:447:40Waxing Crescent28Fri
29Sat12:033.44:590.24:540.25:437:41Waxing Crescent29Sat
30Sun12:203.91:003.55:480.45:480.35:427:42First Quarter30Sun
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 8:26 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 9% 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 Waning Crescent (9% 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