Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Monday, June 22, 2026
The tide is currently rising in Block Island, RI.
Next low tide : 9:27 pm (0.6 ft)
Next high tide : in 51m at 2:47 pm (3.1 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:13 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Jun 2013

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:152.92:523.18:470.29:420.45:158:12Third Quarter1Sat
2Sun3:172.73:563.19:400.210:440.45:158:13Waning Crescent2Sun
3Mon4:202.64:563.110:280.311:380.45:148:14Waning Crescent3Mon
4Tue5:182.65:493.211:120.35:148:14Waning Crescent4Tue
5Wed6:092.66:353.212:260.411:51 AM0.35:148:15Waning Crescent5Wed
6Thu6:552.67:173.31:090.312:270.35:138:16New Moon6Thu
7Fri7:372.77:563.31:500.31:030.25:138:16New Moon7Fri
8Sat8:182.88:323.22:280.21:400.25:138:17New Moon8Sat
9Sun8:572.89:063.23:030.22:180.25:138:18New Moon9Sun
10Mon9:342.79:393.13:370.22:560.35:138:18New Moon10Mon
11Tue10:122.710:143.04:080.23:340.35:128:19Waxing Crescent11Tue
12Wed10:502.710:502.94:360.34:140.45:128:19Waxing Crescent12Wed
13Thu11:312.611:312.85:050.44:560.55:128:20Waxing Crescent13Thu
14Fri12:142.65:390.45:440.65:128:20Waxing Crescent14Fri
15Sat12:162.71:002.76:200.46:410.75:128:20First Quarter15Sat
16Sun1:042.71:492.87:070.47:460.75:128:21First Quarter16Sun
17Mon1:572.62:433.07:570.38:590.65:138:21First Quarter17Mon
18Tue2:562.63:423.28:530.310:180.45:138:21Waxing Gibbous18Tue
19Wed4:022.74:453.49:530.111:240.25:138:22Waxing Gibbous19Wed
20Thu5:082.85:443.710:550.05:138:22Waxing Gibbous20Thu
21Fri6:083.06:394.012:22-0.111:54 AM-0.25:138:22Waxing Gibbous21Fri
22Sat7:043.27:334.21:16-0.312:51-0.35:138:22Full Moon22Sat
23Sun7:593.48:274.22:09-0.41:49-0.45:148:23Full Moon23Sun
24Mon8:523.59:194.23:00-0.52:46-0.55:148:23Full Moon24Mon
25Tue9:453.610:114.03:49-0.53:41-0.45:148:23Waning Gibbous25Tue
26Wed10:383.611:033.84:37-0.44:38-0.25:158:23Waning Gibbous26Wed
27Thu11:333.511:573.55:26-0.35:430.05:158:23Waning Gibbous27Thu
28Fri12:293.46:18-0.16:580.25:168:23Third Quarter28Fri
29Sat12:513.21:263.37:110.18:080.45:168:23Third Quarter29Sat
30Sun1:462.92:233.28:010.29:140.55:168:23Third Quarter30Sun
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 6:07 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 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 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 First Quarter (58% 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