Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently falling in Block Island, RI.
Next low tide (tomorrow) : in 6h 02m at 3:29 am (0.3 ft)
Next high tide (tomorrow) : 9:17 am (2.6 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:16 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Mar 2052

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:203.47:403.41:05-0.61:29-0.76:185:37New Moon1Fri
2Sat8:043.48:243.51:48-0.72:03-0.86:175:39New Moon2Sat
3Sun8:493.39:113.62:32-0.72:40-0.86:155:40Waxing Crescent3Sun
4Mon9:373.210:003.53:17-0.63:20-0.76:145:41Waxing Crescent4Mon
5Tue10:283.010:543.44:08-0.44:05-0.56:125:42Waxing Crescent5Tue
6Wed11:242.811:523.25:14-0.24:57-0.36:115:43First Quarter6Wed
7Thu12:252.66:450.06:02-0.16:095:44First Quarter7Thu
8Fri12:563.01:312.58:060.17:310.06:075:45First Quarter8Fri
9Sat2:082.82:432.59:160.19:070.06:065:46First Quarter9Sat
10Sun4:242.84:542.611:160.011:160.07:046:48Waxing Gibbous10Sun
11Mon5:302.95:532.812:07-0.17:026:49Waxing Gibbous11Mon
12Tue6:233.06:443.012:12-0.212:52-0.27:016:50Waxing Gibbous12Tue
13Wed7:093.07:293.11:00-0.21:32-0.36:596:51Full Moon13Wed
14Thu7:513.18:113.21:43-0.32:08-0.36:576:52Full Moon14Thu
15Fri8:303.08:503.22:21-0.32:37-0.36:566:53Full Moon15Fri
16Sat9:063.09:273.22:54-0.33:01-0.36:546:54Full Moon16Sat
17Sun9:402.810:013.03:23-0.23:22-0.26:526:55Waning Gibbous17Sun
18Mon10:142.710:342.93:51-0.13:47-0.16:516:56Waning Gibbous18Mon
19Tue10:482.511:092.74:220.04:180.06:496:58Waning Gibbous19Tue
20Wed11:262.311:462.64:570.24:540.26:476:59Waning Gibbous20Wed
21Thu12:082.25:400.35:360.46:467:00Third Quarter21Thu
22Fri12:302.412:552.16:320.56:260.56:447:01Third Quarter22Fri
23Sat1:202.31:492.07:440.67:270.66:427:02Third Quarter23Sat
24Sun2:182.32:502.09:270.68:400.56:417:03Third Quarter24Sun
25Mon3:272.44:012.210:330.410:140.46:397:04Waning Crescent25Mon
26Tue4:382.55:052.511:210.211:240.16:377:05Waning Crescent26Tue
27Wed5:352.85:572.812:010.06:367:06Waning Crescent27Wed
28Thu6:243.16:443.212:16-0.112:39-0.36:347:07Waning Crescent28Thu
29Fri7:113.37:303.61:04-0.41:17-0.56:327:08New Moon29Fri
30Sat7:573.48:173.81:51-0.61:56-0.76:317:09New Moon30Sat
31Sun8:443.59:043.92:38-0.72:36-0.86:297:10New Moon31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8459338)

Common Questions About Block Island, RI Tides

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

Slack tide in Block Island, RI is approximately 6:23 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 Block Island, RI?

Block Island, RI is currently in a spring phase. Tonight's moon is 100% 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 Block Island, 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 Block Island, RI?

Tide predictions for Block Island, 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 Block Island, RI?

Tide data for Block Island, RI is sourced from NOAA Station #8459338. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8459338.

What is the moon phase in Block Island, RI tonight?

Tonight the moon over Block Island, RI is Full Moon (100% illuminated). This places Block Island, 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