Nearby Harbors
41.5865’ N, 71.2919’ W

Portsmouth, Melville, RI

68°
H 79°
L 60°
SW
4mph
Low tide
11:15 am
Photo Credits

Tides Today & Tomorrow in Portsmouth, Melville, RI

TIDE TIMES for Monday, August 24, 2026
The tide is currently falling in Portsmouth, Melville, RI.
Next low tide : in 4h 07m at 11:15 am (0.8 ft)
Next high tide : 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 - Jan 2017

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:383.910:053.42:33-0.23:13-0.27:114:26Waxing Crescent1Sun
2Mon10:233.810:533.43:13-0.13:48-0.27:114:26Waxing Crescent2Mon
3Tue11:133.711:453.53:560.04:28-0.17:114:27Waxing Crescent3Tue
4Wed12:063.64:450.15:15-0.17:114:28First Quarter4Wed
5Thu12:383.61:013.55:470.36:13-0.17:114:29First Quarter5Thu
6Fri1:343.72:003.47:070.37:18-0.17:114:30First Quarter6Fri
7Sat2:343.93:033.58:420.28:25-0.27:114:31Waxing Gibbous7Sat
8Sun3:394.14:093.69:590.09:28-0.47:114:32Waxing Gibbous8Sun
9Mon4:444.45:123.810:58-0.210:26-0.57:114:33Waxing Gibbous9Mon
10Tue5:434.76:094.111:52-0.411:20-0.77:114:34Waxing Gibbous10Tue
11Wed6:384.97:024.312:44-0.57:104:35Full Moon11Wed
12Thu7:295.07:534.412:12-0.71:34-0.67:104:36Full Moon12Thu
13Fri8:194.98:434.41:04-0.72:18-0.67:104:38Full Moon13Fri
14Sat9:074.79:324.31:55-0.62:56-0.57:094:39Waning Gibbous14Sat
15Sun9:564.410:224.12:42-0.53:29-0.37:094:40Waning Gibbous15Sun
16Mon10:444.011:133.93:26-0.24:03-0.17:084:41Waning Gibbous16Mon
17Tue11:333.64:110.14:390.17:084:42Waning Gibbous17Tue
18Wed12:043.612:223.34:590.35:220.37:074:43Third Quarter18Wed
19Thu12:553.41:103.05:580.66:130.47:074:44Third Quarter19Thu
20Fri1:453.22:002.77:130.77:120.57:064:46Third Quarter20Fri
21Sat2:383.12:532.68:340.78:140.57:054:47Third Quarter21Sat
22Sun3:363.13:532.69:350.69:120.47:054:48Waning Crescent22Sun
23Mon4:333.14:492.710:230.410:030.27:044:49Waning Crescent23Mon
24Tue5:213.35:362.911:060.210:490.07:034:51Waning Crescent24Tue
25Wed6:023.56:183.111:470.011:32-0.27:024:52Waning Crescent25Wed
26Thu6:403.76:573.312:27-0.27:024:53New Moon26Thu
27Fri7:173.97:363.512:15-0.31:06-0.37:014:54New Moon27Fri
28Sat7:554.08:163.612:57-0.41:42-0.47:004:56New Moon28Sat
29Sun8:354.18:583.71:38-0.52:16-0.56:594:57New Moon29Sun
30Mon9:184.19:433.82:19-0.52:50-0.66:584:58Waxing Crescent30Mon
31Tue10:034.010:303.83:00-0.53:25-0.56:574:59Waxing Crescent31Tue
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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