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 46m 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 - Dec 2041

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:162.81:422.87:460.38:170.06:524:18First Quarter1Sun
2Mon2:213.02:482.89:070.29:10-0.16:534:17Waxing Gibbous2Mon
3Tue3:263.23:522.810:110.09:58-0.26:544:17Waxing Gibbous3Tue
4Wed4:243.54:492.811:06-0.110:43-0.36:554:17Waxing Gibbous4Wed
5Thu5:163.75:402.911:57-0.311:26-0.36:564:17Waxing Gibbous5Thu
6Fri6:053.86:292.912:46-0.36:574:17Full Moon6Fri
7Sat6:523.77:172.912:09-0.31:31-0.36:584:17Full Moon7Sat
8Sun7:383.68:032.912:51-0.32:14-0.26:594:17Full Moon8Sun
9Mon8:223.48:482.81:32-0.22:55-0.17:004:17Waning Gibbous9Mon
10Tue9:063.29:342.62:13-0.13:350.07:014:17Waning Gibbous10Tue
11Wed9:502.910:222.52:520.14:170.27:014:17Waning Gibbous11Wed
12Thu10:352.711:142.33:340.35:080.37:024:17Waning Gibbous12Thu
13Fri11:222.54:210.56:050.47:034:17Third Quarter13Fri
14Sat12:062.312:102.35:220.66:570.57:044:18Third Quarter14Sat
15Sun12:582.212:582.26:450.77:410.57:044:18Third Quarter15Sun
16Mon1:512.31:502.18:080.78:220.57:054:18Third Quarter16Mon
17Tue2:452.42:492.09:150.69:010.47:064:19Waning Crescent17Tue
18Wed3:362.53:482.110:090.49:400.37:064:19Waning Crescent18Wed
19Thu4:212.84:372.210:560.210:190.27:074:19Waning Crescent19Thu
20Fri5:033.05:202.311:400.111:000.07:074:20Waning Crescent20Fri
21Sat5:433.26:032.512:22-0.17:084:20New Moon21Sat
22Sun6:263.46:462.61:04-0.27:084:21New Moon22Sun
23Mon7:103.57:312.712:25-0.31:45-0.37:094:21New Moon23Mon
24Tue7:553.58:182.81:10-0.42:25-0.37:094:22New Moon24Tue
25Wed8:433.59:062.81:57-0.43:06-0.37:104:23Waxing Crescent25Wed
26Thu9:323.49:582.82:45-0.33:50-0.37:104:23Waxing Crescent26Thu
27Fri10:243.210:542.93:37-0.24:38-0.27:104:24Waxing Crescent27Fri
28Sat11:193.011:532.94:380.05:33-0.27:114:25First Quarter28Sat
29Sun12:172.86:030.16:31-0.17:114:25First Quarter29Sun
30Mon12:532.91:172.67:370.17:29-0.17:114:26First Quarter30Mon
31Tue1:563.02:222.48:550.18:23-0.17:114:27First Quarter31Tue
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 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