Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in Block Island, RI.
Next low tide (tomorrow) : 9:51 am (0.5 ft)
Next high tide (tomorrow) : in 4h 02m at 4:00 am (2.3 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:14 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Jan 2044

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:583.08:142.41:150.02:250.07:114:27New Moon1Fri
2Sat8:322.98:512.41:520.02:540.07:114:28Waxing Crescent2Sat
3Sun9:082.99:312.52:290.03:210.07:114:29Waxing Crescent3Sun
4Mon9:462.810:142.53:070.13:510.07:114:30Waxing Crescent4Mon
5Tue10:292.611:002.53:500.24:260.07:114:31Waxing Crescent5Tue
6Wed11:172.511:512.64:410.35:080.07:114:32First Quarter6Wed
7Thu12:102.45:440.35:580.07:114:33First Quarter7Thu
8Fri12:442.71:082.37:030.36:540.07:114:34First Quarter8Fri
9Sat1:432.92:142.28:400.27:56-0.17:114:35First Quarter9Sat
10Sun2:503.03:262.39:570.19:04-0.27:114:36Waxing Gibbous10Sun
11Mon3:593.24:332.510:57-0.210:13-0.37:104:37Waxing Gibbous11Mon
12Tue5:013.45:312.711:52-0.411:16-0.57:104:38Waxing Gibbous12Tue
13Wed5:583.66:252.912:44-0.67:104:39Full Moon13Wed
14Thu6:523.77:173.112:15-0.71:33-0.77:094:40Full Moon14Thu
15Fri7:423.78:073.21:10-0.72:18-0.77:094:41Full Moon15Fri
16Sat8:313.68:563.22:02-0.73:00-0.67:084:42Waning Gibbous16Sat
17Sun9:173.49:453.12:51-0.63:39-0.57:084:44Waning Gibbous17Sun
18Mon10:033.110:343.03:38-0.44:16-0.47:074:45Waning Gibbous18Mon
19Tue10:502.711:252.84:29-0.14:51-0.27:074:46Waning Gibbous19Tue
20Wed11:372.45:290.15:240.07:064:47Third Quarter20Wed
21Thu12:162.712:252.16:390.46:010.27:064:48Third Quarter21Thu
22Fri1:092.51:181.97:500.56:460.37:054:50Third Quarter22Fri
23Sat2:082.42:231.78:590.57:440.47:044:51Third Quarter23Sat
24Sun3:172.33:391.710:000.59:030.47:044:52Waning Crescent24Sun
25Mon4:212.44:391.810:520.410:140.47:034:53Waning Crescent25Mon
26Tue5:122.55:262.011:370.311:060.27:024:54Waning Crescent26Tue
27Wed5:542.66:052.112:190.17:014:56Waning Crescent27Wed
28Thu6:312.86:412.312:580.07:004:57New Moon28Thu
29Fri7:052.97:172.512:32-0.11:32-0.17:004:58New Moon29Fri
30Sat7:383.07:522.61:10-0.22:02-0.26:594:59New Moon30Sat
31Sun8:113.08:282.71:45-0.22:27-0.36:585:01New Moon31Sun
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 6:55 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 transitional phase. Tonight's moon is 67% 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 shifting between spring and neap.

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 (67% illuminated). This places Block Island, RI in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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