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 1h 00m 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 - Jul 2028

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:373.64:174.59:040.411:000.65:158:23Waxing Gibbous1Sat
2Sun4:413.55:214.510:040.411:540.55:158:23Waxing Gibbous2Sun
3Mon5:463.56:204.510:570.45:168:22Waxing Gibbous3Mon
4Tue6:433.67:134.612:410.511:46 AM0.45:168:22Waxing Gibbous4Tue
5Wed7:353.88:024.61:240.512:330.45:178:22Full Moon5Wed
6Thu8:223.98:474.52:030.41:190.35:188:22Full Moon6Thu
7Fri9:073.99:294.42:380.42:060.35:188:21Full Moon7Fri
8Sat9:503.910:094.23:090.32:520.35:198:21Full Moon8Sat
9Sun10:323.810:484.03:400.33:360.45:208:20Waning Gibbous9Sun
10Mon11:133.711:273.74:120.34:180.55:208:20Waning Gibbous10Mon
11Tue11:543.64:440.35:000.75:218:19Waning Gibbous11Tue
12Wed12:053.512:353.65:180.45:450.85:228:19Waning Gibbous12Wed
13Thu12:453.31:143.55:550.56:371.05:238:18Third Quarter13Thu
14Fri1:263.11:543.56:360.67:411.15:248:18Third Quarter14Fri
15Sat2:093.02:363.57:250.78:561.15:248:17Third Quarter15Sat
16Sun2:582.93:263.68:210.710:061.05:258:17Third Quarter16Sun
17Mon3:552.94:253.79:210.611:030.85:268:16Waning Crescent17Mon
18Tue5:003.15:293.910:200.411:510.55:278:15Waning Crescent18Tue
19Wed6:023.36:274.211:150.25:288:14Waning Crescent19Wed
20Thu6:573.77:204.612:370.312:080.05:298:14New Moon20Thu
21Fri7:484.18:104.81:240.11:01-0.25:308:13New Moon21Fri
22Sat8:384.48:595.02:10-0.21:55-0.35:308:12New Moon22Sat
23Sun9:284.79:485.02:55-0.32:50-0.45:318:11New Moon23Sun
24Mon10:194.810:384.93:37-0.43:43-0.35:328:10Waxing Crescent24Mon
25Tue11:114.911:304.64:16-0.44:35-0.15:338:09Waxing Crescent25Tue
26Wed12:054.94:56-0.35:300.25:348:08Waxing Crescent26Wed
27Thu12:254.31:014.85:38-0.16:350.55:358:07First Quarter27Thu
28Fri1:214.01:574.66:270.28:170.75:368:06First Quarter28Fri
29Sat2:183.72:554.57:250.59:490.85:378:05First Quarter29Sat
30Sun3:173.53:584.38:360.710:550.85:388:04Waxing Gibbous30Sun
31Mon4:223.45:054.29:520.711:480.85:398:03Waxing Gibbous31Mon
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