Tides Today & Tomorrow in Portsmouth, Melville, RI

TIDE TIMES for Saturday, June 27, 2026
The tide is currently falling in Portsmouth, Melville, RI.
Next low tide : in 2h 00m at 11:48 am (0.6 ft)
Next high tide : 7:23 pm (4.0 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:13 am
Moon phase : Waxing Gibbous (95% illuminated)
Tide Station Location : Station #8452555
Common Questions About Tides

Portsmouth, Melville, RI Tides - Nov 2042

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:194.811:483.93:51-0.25:100.37:175:40Waning Gibbous1Sat
2Sun11:184.411:483.73:400.25:190.66:184:38Waning Gibbous2Sun
3Mon12:194.04:330.67:090.86:194:37Third Quarter3Mon
4Tue12:483.61:193.75:410.98:220.96:214:36Third Quarter4Tue
5Wed1:483.52:193.57:541.09:130.86:224:35Third Quarter5Wed
6Thu2:483.53:193.49:131.09:500.76:234:34Waning Crescent6Thu
7Fri3:483.64:163.49:570.810:140.66:244:32Waning Crescent7Fri
8Sat4:423.85:043.410:310.710:340.56:254:31Waning Crescent8Sat
9Sun5:273.95:453.411:040.510:590.36:274:30Waning Crescent9Sun
10Mon6:064.16:223.511:380.411:280.26:284:29Waning Crescent10Mon
11Tue6:424.26:573.512:150.26:294:28New Moon11Tue
12Wed7:154.27:323.512:020.112:530.16:304:27New Moon12Wed
13Thu7:484.18:073.412:370.11:320.16:314:26New Moon13Thu
14Fri8:224.18:453.31:140.22:100.26:334:26New Moon14Fri
15Sat8:583.99:253.21:510.22:470.36:344:25Waxing Crescent15Sat
16Sun9:393.810:103.12:290.33:220.46:354:24Waxing Crescent16Sun
17Mon10:263.711:003.13:080.44:010.56:364:23Waxing Crescent17Mon
18Tue11:193.611:553.13:510.54:470.66:374:22Waxing Crescent18Tue
19Wed12:153.64:420.65:460.76:394:22First Quarter19Wed
20Thu12:513.21:123.65:500.76:580.66:404:21First Quarter20Thu
21Fri1:473.52:103.77:170.78:040.46:414:20First Quarter21Fri
22Sat2:463.83:113.78:450.48:580.16:424:20Waxing Gibbous22Sat
23Sun3:474.24:143.89:530.19:46-0.26:434:19Waxing Gibbous23Sun
24Mon4:474.65:134.010:49-0.110:32-0.46:444:18Waxing Gibbous24Mon
25Tue5:425.06:084.111:41-0.311:18-0.66:464:18Full Moon25Tue
26Wed6:345.27:004.212:33-0.46:474:17Full Moon26Wed
27Thu7:255.37:514.312:05-0.61:27-0.46:484:17Full Moon27Thu
28Fri8:165.28:424.212:54-0.62:19-0.36:494:16Full Moon28Fri
29Sat9:084.99:344.01:44-0.43:07-0.16:504:16Waning Gibbous29Sat
30Sun10:014.610:283.82:34-0.23:540.26:514:16Waning Gibbous30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8452555)

Common Questions About Portsmouth, Melville, RI Tides

Show All
What time does the tide turn (slack tide) in Portsmouth, Melville, RI today?

Slack tide in Portsmouth, Melville, RI is approximately 3:35 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

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 95% 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 (95% 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