Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently rising in Block Island, RI.
Next low tide : 7:48 pm (0.7 ft)
Next high tide : in 2h 45m at 1:36 pm (3.1 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:20 am
Moon phase : Third Quarter (52% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Sep 2063

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:032.33:552.99:150.710:440.86:137:19First Quarter1Sat
2Sun4:162.35:032.910:330.711:360.76:147:17Waxing Gibbous2Sun
3Mon5:202.55:572.911:300.76:157:16Waxing Gibbous3Mon
4Tue6:102.66:403.012:190.612:160.66:167:14Waxing Gibbous4Tue
5Wed6:532.87:173.112:550.512:560.56:177:12Waxing Gibbous5Wed
6Thu7:313.07:513.21:280.41:320.46:187:11Full Moon6Thu
7Fri8:053.18:223.21:570.22:070.36:197:09Full Moon7Fri
8Sat8:363.28:523.12:220.22:400.36:207:07Full Moon8Sat
9Sun9:073.29:223.02:450.13:120.36:217:06Full Moon9Sun
10Mon9:373.29:552.93:090.23:420.46:227:04Waning Gibbous10Mon
11Tue10:103.210:322.83:360.24:130.56:237:02Waning Gibbous11Tue
12Wed10:473.211:132.64:080.34:490.66:247:00Waning Gibbous12Wed
13Thu11:303.14:440.45:330.76:256:59Waning Gibbous13Thu
14Fri12:012.512:213.05:280.56:330.86:266:57Third Quarter14Fri
15Sat12:562.41:193.06:230.68:130.96:276:55Third Quarter15Sat
16Sun1:582.42:253.07:300.69:520.76:286:54Third Quarter16Sun
17Mon3:082.53:393.18:480.510:520.56:296:52Waning Crescent17Mon
18Tue4:212.74:513.310:150.311:410.26:306:50Waning Crescent18Tue
19Wed5:243.15:503.611:270.16:316:48Waning Crescent19Wed
20Thu6:193.56:423.812:250.012:26-0.26:326:47Waning Crescent20Thu
21Fri7:093.87:313.81:06-0.31:20-0.46:336:45New Moon21Fri
22Sat7:584.18:193.81:45-0.42:13-0.56:346:43New Moon22Sat
23Sun8:454.29:073.62:24-0.53:03-0.46:356:42New Moon23Sun
24Mon9:334.29:543.43:01-0.43:52-0.36:366:40Waxing Crescent24Mon
25Tue10:214.010:433.13:38-0.24:41-0.16:376:38Waxing Crescent25Tue
26Wed11:123.711:342.84:160.05:380.26:386:36Waxing Crescent26Wed
27Thu12:073.44:570.36:490.56:396:35First Quarter27Thu
28Fri12:312.61:093.15:470.68:050.76:406:33First Quarter28Fri
29Sat1:332.42:162.87:050.89:130.86:416:31First Quarter29Sat
30Sun2:402.33:292.79:030.910:130.86:426:30First Quarter30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8459338)

Common Questions About Block Island, RI Tides

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

Slack tide in Block Island, RI is approximately 4:42 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 Block Island, RI?

Block Island, RI is currently in a neap phase. Tonight's moon is 52% 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 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 Third Quarter (52% illuminated). This places Block Island, 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