Nearby Harbors
41.5865’ N, 71.2919’ W

Portsmouth, Melville, RI

53°
H 75°
L 64°
NE
2mph
High tide
9:22 am
Photo Credits

Tides Today & Tomorrow in Portsmouth, Melville, RI

TIDE TIMES for Saturday, September 12, 2026
The tide is currently rising in Portsmouth, Melville, RI.
Next low tide : 2:55 pm (0.0 ft)
Next high tide : in 3h 00m at 9:22 am (5.0 ft)
Sunset today : 7:00 pm
Sunrise tomorrow : 6:22 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #8452555
Common Questions About Tides

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Portsmouth, Melville, RI Tides - Nov 2079

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:412.81:593.16:331.18:091.17:175:39First Quarter1Wed
2Thu2:312.92:493.17:521.19:191.07:185:38First Quarter2Thu
3Fri3:233.03:433.29:181.010:040.77:195:37First Quarter3Fri
4Sat4:183.34:393.310:220.810:410.47:215:36Waxing Gibbous4Sat
5Sun4:133.64:343.610:120.410:160.16:224:35Waxing Gibbous5Sun
6Mon5:034.15:253.810:560.110:52-0.26:234:34Waxing Gibbous6Mon
7Tue5:504.56:134.011:40-0.111:31-0.46:244:32Full Moon7Tue
8Wed6:364.97:004.212:26-0.36:254:31Full Moon8Wed
9Thu7:225.17:494.212:13-0.61:14-0.46:274:30Full Moon9Thu
10Fri8:115.28:404.212:58-0.62:04-0.46:284:29Full Moon10Fri
11Sat9:025.19:334.11:45-0.52:54-0.26:294:28Waning Gibbous11Sat
12Sun9:574.910:304.02:35-0.43:460.06:304:27Waning Gibbous12Sun
13Mon10:564.611:303.93:27-0.14:480.36:314:26Waning Gibbous13Mon
14Tue11:584.34:230.26:340.56:334:25Third Quarter14Tue
15Wed12:323.81:004.15:340.67:580.56:344:25Third Quarter15Wed
16Thu1:333.82:013.97:430.78:570.56:354:24Third Quarter16Thu
17Fri2:353.93:033.79:120.69:430.46:364:23Waning Crescent17Fri
18Sat3:374.04:043.610:090.510:170.36:374:22Waning Crescent18Sat
19Sun4:354.24:593.610:520.410:410.36:394:21Waning Crescent19Sun
20Mon5:264.45:473.611:280.311:030.26:404:21Waning Crescent20Mon
21Tue6:114.56:313.611:590.311:310.26:414:20New Moon21Tue
22Wed6:534.57:123.612:310.26:424:19New Moon22Wed
23Thu7:324.47:513.512:050.11:060.26:434:19New Moon23Thu
24Fri8:104.28:303.412:430.11:440.26:444:18New Moon24Fri
25Sat8:474.09:093.31:240.22:220.26:464:18Waxing Crescent25Sat
26Sun9:243.89:493.12:050.23:000.36:474:17Waxing Crescent26Sun
27Mon10:043.610:313.02:470.43:380.56:484:17Waxing Crescent27Mon
28Tue10:463.411:172.93:280.54:180.66:494:16Waxing Crescent28Tue
29Wed11:313.24:100.75:020.76:504:16First Quarter29Wed
30Thu12:042.912:183.15:000.85:550.76:514:16First Quarter30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8452555)

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The US Harbors tide chart design is protected by copyright. It may be printed for personal use only.
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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 3% 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 New Moon (3% 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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