Nearby Harbors
41.5865’ N, 71.2919’ W

Portsmouth, Melville, RI

67°
H 71°
L 65°
SSE
4mph
High tide
10:06 am
Photo Credits

Tides Today & Tomorrow in Portsmouth, Melville, RI

TIDE TIMES for Sunday, September 13, 2026
The tide is currently rising in Portsmouth, Melville, RI.
Next low tide : 3:35 pm (0.2 ft)
Next high tide : in 5h 07m at 10:06 am (4.9 ft)
Sunset today : 6:58 pm
Sunrise tomorrow : 6:23 am
Moon phase : Waxing Crescent (7% illuminated)
Tide Station Location : Station #8452555
Common Questions About Tides

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Portsmouth, Melville, RI Tides - Sep 2081

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon6:384.17:044.812:170.212:01-0.16:127:17Waning Crescent1Mon
2Tue7:304.67:545.012:59-0.112:57-0.46:137:15New Moon2Tue
3Wed8:205.08:435.11:41-0.31:52-0.56:147:14New Moon3Wed
4Thu9:105.39:325.02:23-0.52:47-0.56:157:12New Moon4Thu
5Fri10:005.410:214.73:04-0.53:39-0.46:167:10Waxing Crescent5Fri
6Sat10:515.311:134.43:44-0.44:29-0.16:177:09Waxing Crescent6Sat
7Sun11:445.04:24-0.25:200.36:187:07Waxing Crescent7Sun
8Mon12:074.112:404.75:060.16:210.76:197:05First Quarter8Mon
9Tue1:043.71:394.45:530.58:151.06:207:04First Quarter9Tue
10Wed2:033.52:394.06:520.99:451.16:217:02First Quarter10Wed
11Thu3:043.33:443.88:211.110:461.06:227:00First Quarter11Thu
12Fri4:093.34:523.710:151.111:311.06:236:58Waxing Gibbous12Fri
13Sat5:143.45:523.811:081.06:246:57Waxing Gibbous13Sat
14Sun6:103.56:403.912:040.911:45 AM0.86:256:55Waxing Gibbous14Sun
15Mon6:563.87:204.012:280.712:200.66:266:53Waxing Gibbous15Mon
16Tue7:363.97:554.012:510.512:560.56:276:52Full Moon16Tue
17Wed8:124.18:284.01:170.41:340.36:286:50Full Moon17Wed
18Thu8:454.29:003.91:470.22:140.36:296:48Full Moon18Thu
19Fri9:174.29:333.82:180.22:520.36:306:46Full Moon19Fri
20Sat9:484.110:073.62:500.23:280.36:316:45Waning Gibbous20Sat
21Sun10:214.010:453.53:210.24:020.56:326:43Waning Gibbous21Sun
22Mon10:573.911:273.33:530.34:360.66:336:41Waning Gibbous22Mon
23Tue11:403.84:270.45:120.86:346:39Waning Gibbous23Tue
24Wed12:163.112:313.75:060.65:581.06:356:38Third Quarter24Wed
25Thu1:103.11:283.75:550.77:071.16:366:36Third Quarter25Thu
26Fri2:073.12:293.76:590.89:091.16:376:34Third Quarter26Fri
27Sat3:083.33:343.88:200.810:220.86:386:32Third Quarter27Sat
28Sun4:133.54:434.19:440.511:080.56:396:31Waning Crescent28Sun
29Mon5:184.05:464.410:550.211:480.16:406:29Waning Crescent29Mon
30Tue6:174.56:424.611:53-0.16:416:27Waning Crescent30Tue
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 7% 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 Crescent (7% 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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