Nearby Harbors
41.5865’ N, 71.2919’ W

Portsmouth, Melville, RI

58°
H 64°
L 52°
NNE
11mph
High tide
5:18 am
Photo Credits

Tides Today & Tomorrow in Portsmouth, Melville, RI

TIDE TIMES for Tuesday, September 22, 2026
The tide is currently rising in Portsmouth, Melville, RI.
Next low tide : 10:56 am (0.8 ft)
Next high tide : in 24m at 5:18 am (3.2 ft)
Sunset today : 6:42 pm
Sunrise tomorrow : 6:32 am
Moon phase : Waxing Gibbous (83% illuminated)
Tide Station Location : Station #8452555
Common Questions About Tides

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East Passage 24. Photo by Tyler Fields Photography

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Portsmouth, Melville, RI Tides - Apr 2095

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:434.06:114.011:39-0.111:49-0.46:277:10Waning Crescent1Fri
2Sat6:414.37:064.512:23-0.46:257:11Waning Crescent2Sat
3Sun7:334.67:564.912:44-0.61:06-0.76:237:12New Moon3Sun
4Mon8:224.88:465.21:39-0.81:49-0.86:227:13New Moon4Mon
5Tue9:124.79:355.32:33-0.92:32-0.86:207:15New Moon5Tue
6Wed10:014.610:255.13:24-0.83:15-0.76:187:16Waxing Crescent6Wed
7Thu10:524.311:174.84:12-0.63:57-0.56:177:17Waxing Crescent7Thu
8Fri11:454.04:59-0.24:40-0.26:157:18Waxing Crescent8Fri
9Sat12:114.412:413.75:500.25:260.26:137:19Waxing Crescent9Sat
10Sun1:094.01:393.47:120.66:190.66:127:20First Quarter10Sun
11Mon2:083.72:373.39:040.77:300.86:107:21First Quarter11Mon
12Tue3:103.43:383.210:110.89:250.96:087:22First Quarter12Tue
13Wed4:163.24:413.210:580.710:400.86:077:23Waxing Gibbous13Wed
14Thu5:203.25:403.411:320.611:220.66:057:24Waxing Gibbous14Thu
15Fri6:123.36:293.611:570.511:580.46:047:25Waxing Gibbous15Fri
16Sat6:553.47:103.812:210.36:027:27Waxing Gibbous16Sat
17Sun7:313.57:473.912:350.212:480.26:017:28Waxing Gibbous17Sun
18Mon8:043.58:204.11:140.01:190.05:597:29Full Moon18Mon
19Tue8:373.68:534.11:53-0.11:520.05:587:30Full Moon19Tue
20Wed9:103.59:254.12:32-0.12:250.05:567:31Full Moon20Wed
21Thu9:453.59:594.03:09-0.12:580.05:557:32Full Moon21Thu
22Fri10:243.410:373.93:440.03:320.15:537:33Waning Gibbous22Fri
23Sat11:063.211:203.84:180.14:070.25:527:34Waning Gibbous23Sat
24Sun11:543.14:540.24:460.35:507:35Waning Gibbous24Sun
25Mon12:103.712:473.15:360.45:330.45:497:36Third Quarter25Mon
26Tue1:063.61:423.26:310.56:320.55:477:37Third Quarter26Tue
27Wed2:053.62:413.37:460.67:490.65:467:39Third Quarter27Wed
28Thu3:063.73:423.59:110.59:190.45:457:40Third Quarter28Thu
29Fri4:113.84:473.910:150.210:380.25:437:41Waning Crescent29Fri
30Sat5:174.05:494.411:05-0.111:40-0.25:427:42Waning Crescent30Sat
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 83% 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 (83% 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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