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 (tomorrow) : 12:23 am (0.0 ft)
Next high tide : in 2h 19m at 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 - Apr 2029

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:224.410:495.03:43-0.73:34-0.76:277:10Waning Gibbous1Sun
2Mon11:164.111:444.74:31-0.54:19-0.46:257:11Waning Gibbous2Mon
3Tue12:123.95:20-0.15:070.06:237:12Waning Gibbous3Tue
4Wed12:424.31:103.66:210.36:010.46:227:13Third Quarter4Wed
5Thu1:423.92:103.58:180.67:180.76:207:15Third Quarter5Thu
6Fri2:433.63:113.49:390.79:470.86:187:16Third Quarter6Fri
7Sat3:463.44:153.410:340.610:500.76:177:17Third Quarter7Sat
8Sun4:503.35:173.511:130.611:320.66:157:18Waning Crescent8Sun
9Mon5:473.46:103.711:380.56:137:19Waning Crescent9Mon
10Tue6:353.46:553.812:040.411:59 AM0.36:127:20Waning Crescent10Tue
11Wed7:163.57:344.012:340.312:250.26:107:21Waning Crescent11Wed
12Thu7:533.68:094.11:080.112:560.16:087:22New Moon12Thu
13Fri8:283.68:424.11:440.01:310.06:077:23New Moon13Fri
14Sat9:033.59:144.02:22-0.12:07-0.16:057:24New Moon14Sat
15Sun9:383.59:473.92:59-0.12:430.06:047:25New Moon15Sun
16Mon10:143.310:213.83:350.03:200.16:027:27Waxing Crescent16Mon
17Tue10:533.211:003.64:080.13:560.16:017:28Waxing Crescent17Tue
18Wed11:373.111:453.54:410.34:330.35:597:29Waxing Crescent18Wed
19Thu12:263.15:180.55:160.45:587:30Waxing Crescent19Thu
20Fri12:363.41:183.16:030.66:080.55:567:31First Quarter20Fri
21Sat1:313.42:123.27:040.67:150.65:557:32First Quarter21Sat
22Sun2:293.53:103.48:210.68:360.55:537:33First Quarter22Sun
23Mon3:303.54:113.89:310.39:560.35:527:34Waxing Gibbous23Mon
24Tue4:353.75:134.210:260.111:03-0.15:507:35Waxing Gibbous24Tue
25Wed5:393.96:114.711:14-0.25:497:36Waxing Gibbous25Wed
26Thu6:374.17:055.112:00-0.312:00-0.55:477:37Waxing Gibbous26Thu
27Fri7:314.37:575.412:53-0.512:46-0.65:467:38Full Moon27Fri
28Sat8:224.48:485.41:47-0.61:34-0.75:457:40Full Moon28Sat
29Sun9:144.59:395.32:41-0.62:23-0.65:437:41Full Moon29Sun
30Mon10:054.410:315.13:32-0.53:13-0.45:427:42Waning Gibbous30Mon
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 9:21 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