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 4h 51m 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 - Feb 2029

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:094.59:384.52:15-0.92:44-0.96:565:01Waning Gibbous1Thu
2Fri9:594.310:304.53:03-0.83:22-0.86:555:02Waning Gibbous2Fri
3Sat10:514.011:244.43:52-0.54:03-0.66:545:03Waning Gibbous3Sat
4Sun11:473.74:45-0.24:48-0.46:535:05Third Quarter4Sun
5Mon12:214.212:453.45:520.25:420.06:525:06Third Quarter5Mon
6Tue1:214.01:453.27:560.46:520.26:505:07Third Quarter6Tue
7Wed2:243.82:503.19:260.48:270.36:495:08Third Quarter7Wed
8Thu3:333.73:593.110:280.39:540.36:485:10Waning Crescent8Thu
9Fri4:413.85:033.311:170.210:490.16:475:11Waning Crescent9Fri
10Sat5:383.95:573.511:570.111:300.06:465:12Waning Crescent10Sat
11Sun6:264.06:443.712:290.06:445:13New Moon11Sun
12Mon7:094.07:263.812:08-0.112:54-0.16:435:15New Moon12Mon
13Tue7:494.08:063.912:46-0.21:19-0.26:425:16New Moon13Tue
14Wed8:263.98:443.91:25-0.31:47-0.36:405:17New Moon14Wed
15Thu9:023.79:203.72:03-0.32:17-0.36:395:18Waxing Crescent15Thu
16Fri9:373.59:553.62:41-0.22:49-0.36:385:20Waxing Crescent16Fri
17Sat10:133.210:303.43:17-0.13:21-0.26:365:21Waxing Crescent17Sat
18Sun10:503.011:073.23:530.13:540.06:355:22Waxing Crescent18Sun
19Mon11:312.811:473.14:320.34:310.16:335:23First Quarter19Mon
20Tue12:162.65:150.65:140.36:325:25First Quarter20Tue
21Wed12:333.01:052.56:140.76:090.46:315:26First Quarter21Wed
22Thu1:242.92:002.57:450.87:180.46:295:27First Quarter22Thu
23Fri2:253.03:042.79:150.68:330.36:285:28Waxing Gibbous23Fri
24Sat3:343.24:103.010:100.49:400.06:265:29Waxing Gibbous24Sat
25Sun4:403.55:103.410:530.010:38-0.36:255:31Waxing Gibbous25Sun
26Mon5:363.96:023.911:33-0.311:30-0.66:235:32Waxing Gibbous26Mon
27Tue6:264.36:514.412:13-0.66:215:33Full Moon27Tue
28Wed7:144.57:394.712:22-0.912:54-0.86:205:34Full Moon28Wed
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