Tides Today & Tomorrow in Portsmouth, Melville, RI

TIDE TIMES for Saturday, June 27, 2026
The tide is currently rising in Portsmouth, Melville, RI.
Next low tide (tomorrow) : 1:04 am (0.6 ft)
Next high tide : in 2h 25m at 7:23 pm (4.0 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:13 am
Moon phase : Waxing Gibbous (95% illuminated)
Tide Station Location : Station #8452555
Common Questions About Tides

Portsmouth, Melville, RI Tides - Jan 2043

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:053.34:430.45:150.47:114:25Third Quarter1Thu
2Fri12:373.412:503.05:390.76:000.57:114:26Third Quarter2Fri
3Sat1:253.31:362.76:510.86:520.57:114:27Third Quarter3Sat
4Sun2:133.22:242.58:100.87:470.57:114:28Third Quarter4Sun
5Mon3:053.13:192.59:150.78:420.57:114:29Waning Crescent5Mon
6Tue4:013.24:192.510:060.69:340.47:114:30Waning Crescent6Tue
7Wed4:533.35:112.610:510.410:210.27:114:31Waning Crescent7Wed
8Thu5:393.45:572.811:330.211:060.07:114:32Waning Crescent8Thu
9Fri6:203.66:383.112:160.07:114:33New Moon9Fri
10Sat7:003.87:193.312:58-0.17:114:34New Moon10Sat
11Sun7:394.08:013.412:34-0.21:39-0.27:104:35New Moon11Sun
12Mon8:214.18:443.51:18-0.32:16-0.37:104:36New Moon12Mon
13Tue9:034.19:293.62:02-0.42:50-0.47:104:37Waxing Crescent13Tue
14Wed9:494.110:173.72:46-0.43:23-0.47:094:38Waxing Crescent14Wed
15Thu10:383.911:083.83:31-0.34:00-0.47:094:39Waxing Crescent15Thu
16Fri11:303.74:19-0.14:41-0.37:084:41First Quarter16Fri
17Sat12:023.812:243.55:160.15:29-0.27:084:42First Quarter17Sat
18Sun12:573.91:213.36:330.36:26-0.17:074:43First Quarter18Sun
19Mon1:553.92:223.18:250.47:330.07:074:44First Quarter19Mon
20Tue2:593.93:303.19:500.38:430.07:064:45Waxing Gibbous20Tue
21Wed4:084.04:383.210:520.19:50-0.17:054:46Waxing Gibbous21Wed
22Thu5:144.25:383.511:450.010:50-0.27:054:48Waxing Gibbous22Thu
23Fri6:114.36:323.712:35-0.17:044:49Full Moon23Fri
24Sat7:024.47:223.91:21-0.27:034:50Full Moon24Sat
25Sun7:504.48:094.012:35-0.41:59-0.37:034:51Full Moon25Sun
26Mon8:344.38:544.01:24-0.42:29-0.37:024:53Full Moon26Mon
27Tue9:174.19:393.92:09-0.42:55-0.27:014:54Waning Gibbous27Tue
28Wed9:583.810:233.72:50-0.23:21-0.27:004:55Waning Gibbous28Wed
29Thu10:403.511:073.53:30-0.13:51-0.16:594:56Waning Gibbous29Thu
30Fri11:213.111:513.34:110.24:230.16:584:58Waning Gibbous30Fri
31Sat12:032.84:560.45:010.26:574:59Third Quarter31Sat
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 10:13 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 95% 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 Waxing Gibbous (95% 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