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 3h 35m 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 - May 2028

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:183.91:573.66:510.56:560.55:407:43First Quarter1Mon
2Tue2:173.82:563.88:130.58:230.55:397:44First Quarter2Tue
3Wed3:183.83:574.19:270.39:540.35:387:45First Quarter3Wed
4Thu4:223.85:004.410:200.111:040.15:377:46Waxing Gibbous4Thu
5Fri5:263.95:594.711:050.05:357:47Waxing Gibbous5Fri
6Sat6:254.06:535.012:00-0.111:47 AM-0.25:347:48Waxing Gibbous6Sat
7Sun7:184.17:445.212:50-0.212:30-0.35:337:49Full Moon7Sun
8Mon8:094.28:335.21:40-0.31:13-0.35:327:51Full Moon8Mon
9Tue8:574.29:215.02:28-0.21:58-0.25:317:52Full Moon9Tue
10Wed9:464.110:094.73:13-0.12:45-0.15:307:53Waning Gibbous10Wed
11Thu10:343.910:584.43:530.13:300.15:287:54Waning Gibbous11Thu
12Fri11:243.711:484.04:300.34:150.35:277:55Waning Gibbous12Fri
13Sat12:163.55:090.55:010.65:267:56Waning Gibbous13Sat
14Sun12:393.71:083.45:530.75:520.85:257:57Third Quarter14Sun
15Mon1:293.41:583.36:450.86:571.05:247:58Third Quarter15Mon
16Tue2:173.22:473.37:460.98:211.15:237:59Third Quarter16Tue
17Wed3:043.03:373.38:440.89:381.05:238:00Third Quarter17Wed
18Thu3:532.94:283.49:330.710:340.85:228:01Waning Crescent18Thu
19Fri4:462.95:183.510:160.511:200.65:218:02Waning Crescent19Fri
20Sat5:383.06:033.710:570.45:208:03Waning Crescent20Sat
21Sun6:243.16:444.012:020.411:36 AM0.25:198:04Waning Crescent21Sun
22Mon7:083.37:244.212:430.212:160.15:188:04New Moon22Mon
23Tue7:503.58:054.31:250.112:560.05:188:05New Moon23Tue
24Wed8:333.68:474.52:080.01:390.05:178:06New Moon24Wed
25Thu9:183.79:334.52:500.02:24-0.15:168:07New Moon25Thu
26Fri10:063.810:214.53:320.03:10-0.15:168:08Waxing Crescent26Fri
27Sat10:563.811:124.44:130.03:580.05:158:09Waxing Crescent27Sat
28Sun11:493.94:540.14:470.15:148:10Waxing Crescent28Sun
29Mon12:074.312:454.05:400.25:430.35:148:10First Quarter29Mon
30Tue1:034.11:414.16:350.36:520.55:138:11First Quarter30Tue
31Wed2:004.02:384.37:380.38:230.65:138:12First Quarter31Wed
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