Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Tuesday, June 16, 2026
The tide is currently rising in Block Island, RI.
Next low tide : 2:57 pm (-0.4 ft)
Next high tide : in 4h 52m at 9:14 am (3.3 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:12 am
Moon phase : New Moon (4% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Jul 2021

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:282.82:022.97:480.48:370.75:178:23Third Quarter1Thu
2Fri2:192.62:562.88:270.59:380.75:188:22Third Quarter2Fri
3Sat3:122.43:522.89:030.510:340.75:188:22Third Quarter3Sat
4Sun4:112.34:472.89:420.611:250.75:198:22Waning Crescent4Sun
5Mon5:082.35:362.910:270.65:198:22Waning Crescent5Mon
6Tue5:572.36:183.012:110.611:13 AM0.55:208:21Waning Crescent6Tue
7Wed6:412.46:573.112:560.511:58 AM0.45:218:21Waning Crescent7Wed
8Thu7:212.57:343.21:390.412:430.35:218:21New Moon8Thu
9Fri8:002.68:123.32:210.31:270.35:228:20New Moon9Fri
10Sat8:392.78:503.32:590.32:100.25:238:20New Moon10Sat
11Sun9:192.89:293.33:340.22:520.25:238:19New Moon11Sun
12Mon10:002.810:093.34:040.23:330.25:248:19Waxing Crescent12Mon
13Tue10:432.910:523.24:320.24:170.35:258:18Waxing Crescent13Tue
14Wed11:303.011:393.15:040.25:050.45:268:18Waxing Crescent14Wed
15Thu12:203.05:420.26:010.55:268:17Waxing Crescent15Thu
16Fri12:293.01:123.26:280.27:090.55:278:17First Quarter16Fri
17Sat1:232.92:073.37:190.28:280.55:288:16First Quarter17Sat
18Sun2:222.83:073.48:140.29:510.45:298:15First Quarter18Sun
19Mon3:272.74:133.59:160.111:030.35:308:15Waxing Gibbous19Mon
20Tue4:372.75:183.710:240.15:318:14Waxing Gibbous20Tue
21Wed5:432.96:173.812:030.111:30 AM0.05:328:13Waxing Gibbous21Wed
22Thu6:423.07:134.012:59-0.112:32-0.15:328:12Full Moon22Thu
23Fri7:363.28:064.01:52-0.21:31-0.25:338:11Full Moon23Fri
24Sat8:283.38:563.92:41-0.22:26-0.25:348:10Full Moon24Sat
25Sun9:183.49:433.83:26-0.23:17-0.15:358:10Full Moon25Sun
26Mon10:063.310:303.64:07-0.24:040.05:368:09Waning Gibbous26Mon
27Tue10:543.311:153.34:460.04:500.25:378:08Waning Gibbous27Tue
28Wed11:423.15:220.15:400.45:388:07Waning Gibbous28Wed
29Thu12:013.012:303.05:550.36:400.65:398:06Third Quarter29Thu
30Fri12:462.71:172.96:290.47:460.85:408:05Third Quarter30Fri
31Sat1:322.52:032.87:060.58:500.85:418:04Third Quarter31Sat
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 12:05 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 spring phase. Tonight's moon is 4% 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 New Moon (4% 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