Tides Today & Tomorrow in Portsmouth, Melville, RI

TIDE TIMES for Friday, June 12, 2026
The tide is currently falling in Portsmouth, Melville, RI.
Next low tide : in 2h 35m at 11:02 am (-0.2 ft)
Next high tide : 6:19 pm (4.8 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 - Oct 2028

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:104.07:283.812:150.512:370.56:426:26Full Moon1Sun
2Mon7:464.18:023.912:420.31:140.36:436:24Full Moon2Mon
3Tue8:194.28:363.81:130.21:520.26:446:23Full Moon3Tue
4Wed8:514.29:093.81:470.12:310.26:456:21Full Moon4Wed
5Thu9:234.29:453.72:210.13:070.36:476:19Full Moon5Thu
6Fri9:574.110:233.52:550.23:420.46:486:18Waning Gibbous6Fri
7Sat10:344.011:063.43:300.34:160.56:496:16Waning Gibbous7Sat
8Sun11:183.811:553.34:060.44:520.76:506:14Waning Gibbous8Sun
9Mon12:093.84:460.55:350.86:516:13Third Quarter9Mon
10Tue12:483.21:063.75:340.66:341.06:526:11Third Quarter10Tue
11Wed1:453.32:053.86:350.78:050.96:536:09Third Quarter11Wed
12Thu2:433.43:063.87:530.79:340.76:546:08Third Quarter12Thu
13Fri3:453.74:104.09:200.610:260.46:556:06Waning Crescent13Fri
14Sat4:484.15:154.210:340.311:090.16:566:05Waning Crescent14Sat
15Sun5:484.66:134.411:34-0.111:50-0.26:586:03Waning Crescent15Sun
16Mon6:435.17:074.612:27-0.36:596:01New Moon16Mon
17Tue7:345.47:584.712:32-0.41:19-0.47:006:00New Moon17Tue
18Wed8:245.68:474.61:14-0.52:11-0.47:015:58New Moon18Wed
19Thu9:145.59:374.51:59-0.53:02-0.37:025:57New Moon19Thu
20Fri10:045.310:284.32:45-0.43:50-0.17:035:55Waxing Crescent20Fri
21Sat10:564.911:224.03:31-0.14:350.27:045:54Waxing Crescent21Sat
22Sun11:514.54:170.25:230.67:065:52Waxing Crescent22Sun
23Mon12:183.812:494.15:050.56:230.97:075:51First Quarter23Mon
24Tue1:163.61:473.86:000.98:161.07:085:50First Quarter24Tue
25Wed2:133.42:443.57:181.19:231.07:095:48First Quarter25Wed
26Thu3:113.43:403.49:231.110:050.97:105:47First Quarter26Thu
27Fri4:093.44:373.310:221.010:340.87:115:46Waxing Gibbous27Fri
28Sat5:063.55:293.311:020.811:010.67:135:44Waxing Gibbous28Sat
29Sun5:553.76:143.411:390.611:300.47:145:43Waxing Gibbous29Sun
30Mon6:363.96:533.512:150.57:155:42Waxing Gibbous30Mon
31Tue7:124.07:293.512:030.312:520.37:165:40Full Moon31Tue
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 2:40 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 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