Nearby Harbors
41.5865’ N, 71.2919’ W

Portsmouth, Melville, RI

80°
H 82°
L 58°
SSW
13mph
High tide
6:30 pm
Photo Credits

Tides Today & Tomorrow in Portsmouth, Melville, RI

TIDE TIMES for Monday, August 24, 2026
The tide is currently rising in Portsmouth, Melville, RI.
Next low tide (tomorrow) : 12:17 am (0.7 ft)
Next high tide : in 3h 56m at 6:30 pm (3.6 ft)
Sunset today : 7:31 pm
Sunrise tomorrow : 6:03 am
Moon phase : Waxing Gibbous (88% illuminated)
Tide Station Location : Station #8452555
Common Questions About Tides

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Portsmouth, Melville, RI Tides - Dec 2035

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:394.28:593.51:140.02:060.06:524:16New Moon1Sat
2Sun9:164.09:393.41:560.12:440.16:534:15Waxing Crescent2Sun
3Mon9:543.710:193.22:370.23:210.26:544:15Waxing Crescent3Mon
4Tue10:333.511:023.13:170.33:590.36:554:15Waxing Crescent4Tue
5Wed11:153.311:473.03:590.54:390.56:564:15Waxing Crescent5Wed
6Thu12:003.24:440.65:250.56:574:15First Quarter6Thu
7Fri12:333.012:473.15:390.86:190.56:584:15First Quarter7Fri
8Sat1:203.11:363.16:490.87:180.46:594:14First Quarter8Sat
9Sun2:103.32:313.18:070.78:150.26:594:15First Quarter9Sun
10Mon3:063.53:313.39:150.49:080.07:004:15Waxing Gibbous10Mon
11Tue4:053.94:323.510:090.19:58-0.37:014:15Waxing Gibbous11Tue
12Wed5:024.35:293.810:59-0.210:46-0.67:024:15Waxing Gibbous12Wed
13Thu5:554.76:224.111:48-0.411:34-0.87:034:15Full Moon13Thu
14Fri6:475.07:144.312:39-0.67:034:15Full Moon14Fri
15Sat7:385.18:064.512:24-0.91:31-0.77:044:15Full Moon15Sat
16Sun8:305.28:584.51:16-0.92:23-0.77:054:16Waning Gibbous16Sun
17Mon9:225.09:534.52:09-0.83:12-0.67:064:16Waning Gibbous17Mon
18Tue10:174.810:494.33:02-0.64:01-0.47:064:16Waning Gibbous18Tue
19Wed11:144.511:474.23:55-0.34:55-0.17:074:17Waning Gibbous19Wed
20Thu12:114.24:540.16:050.17:074:17Third Quarter20Thu
21Fri12:464.11:093.86:160.47:330.27:084:18Third Quarter21Fri
22Sat1:444.02:073.68:180.58:360.37:084:18Third Quarter22Sat
23Sun2:443.93:073.49:280.59:220.37:094:19Waning Crescent23Sun
24Mon3:453.94:093.310:190.49:550.37:094:19Waning Crescent24Mon
25Tue4:433.95:053.310:580.410:240.27:104:20Waning Crescent25Tue
26Wed5:354.05:543.411:300.310:560.17:104:20Waning Crescent26Wed
27Thu6:204.06:383.412:000.27:104:21New Moon27Thu
28Fri7:014.17:183.512:330.07:114:22New Moon28Fri
29Sat7:394.07:573.512:13-0.11:10-0.17:114:23New Moon29Sat
30Sun8:153.98:343.412:55-0.11:48-0.17:114:23New Moon30Sun
31Mon8:503.89:113.31:37-0.12:25-0.17:114:24Waxing Crescent31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8452555)

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Common Questions About Portsmouth, Melville, RI Tides

Collapse All
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 88% 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 (88% 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

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