Tides Today & Tomorrow in Portsmouth, Melville, RI

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Portsmouth, Melville, RI.
Next low tide : in 2h 11m at 9:37 pm (0.9 ft)
Next high tide (tomorrow) : 3:21 am (3.3 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:11 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8452555
Common Questions About Tides

Portsmouth, Melville, RI Tides - Nov 2035

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:254.79:454.02:020.02:490.17:175:40New Moon1Thu
2Fri10:054.410:263.82:400.13:270.27:185:39Waxing Crescent2Fri
3Sat10:464.111:083.53:200.24:050.37:195:37Waxing Crescent3Sat
4Sun10:273.810:523.33:000.43:440.56:204:36Waxing Crescent4Sun
5Mon11:113.611:393.13:410.54:270.76:214:35Waxing Crescent5Mon
6Tue11:563.34:260.85:160.86:234:34First Quarter6Tue
7Wed12:263.012:423.25:190.96:190.96:244:33First Quarter7Wed
8Thu1:133.01:293.16:261.07:310.96:254:32First Quarter8Thu
9Fri2:023.12:203.27:471.08:300.76:264:31First Quarter9Fri
10Sat2:553.33:153.38:570.89:160.46:274:30Waxing Gibbous10Sat
11Sun3:503.54:123.59:510.59:570.26:294:29Waxing Gibbous11Sun
12Mon4:433.95:063.710:370.210:36-0.16:304:28Waxing Gibbous12Mon
13Tue5:324.35:564.011:21-0.111:16-0.46:314:27Waxing Gibbous13Tue
14Wed6:194.76:444.212:06-0.36:324:26Full Moon14Wed
15Thu7:065.07:334.412:53-0.56:344:25Full Moon15Thu
16Fri7:555.18:234.512:44-0.71:42-0.56:354:24Full Moon16Fri
17Sat8:455.19:144.41:32-0.72:31-0.56:364:23Waning Gibbous17Sat
18Sun9:375.010:094.32:21-0.63:21-0.36:374:22Waning Gibbous18Sun
19Mon10:334.811:074.23:11-0.34:13-0.16:384:22Waning Gibbous19Mon
20Tue11:324.54:040.05:170.26:404:21Third Quarter20Tue
21Wed12:074.112:324.35:050.37:060.46:414:20Third Quarter21Wed
22Thu1:074.11:324.16:320.68:230.46:424:20Third Quarter22Thu
23Fri2:074.12:333.98:380.69:180.36:434:19Third Quarter23Fri
24Sat3:094.13:363.89:460.510:010.36:444:19Waning Crescent24Sat
25Sun4:104.24:363.810:350.410:310.26:454:18Waning Crescent25Sun
26Mon5:064.45:293.811:140.310:550.26:464:17Waning Crescent26Mon
27Tue5:564.56:163.811:460.211:230.16:484:17Waning Crescent27Tue
28Wed6:404.56:593.812:170.16:494:17New Moon28Wed
29Thu7:214.57:403.812:510.16:504:16New Moon29Thu
30Fri8:014.48:203.712:340.01:280.06:514:16New Moon30Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8452555)

Common Questions About Portsmouth, Melville, RI Tides

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

Slack tide in Portsmouth, Melville, RI is approximately 12:29 am — 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 neap phase. Tonight's moon is 58% 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 minimum.

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 First Quarter (58% illuminated). This places Portsmouth, Melville, RI in a neap tide cycle, so tidal ranges are near their weekly minimum 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