Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Monday, June 15, 2026
The tide is currently rising in Block Island, RI.
Next low tide : 2:00 pm (-0.4 ft)
Next high tide : in 3h 15m at 8:21 am (3.2 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:12 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Dec 2022

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:312.92:012.88:160.38:390.16:524:18First Quarter1Thu
2Fri2:383.03:062.79:250.29:280.06:534:18Waxing Gibbous2Fri
3Sat3:403.14:052.610:230.110:120.06:544:17Waxing Gibbous3Sat
4Sun4:353.24:562.611:140.110:500.06:554:17Waxing Gibbous4Sun
5Mon5:223.35:422.611:590.011:250.06:564:17Waxing Gibbous5Mon
6Tue6:053.46:252.712:410.06:574:17Full Moon6Tue
7Wed6:453.37:062.71:180.06:584:17Full Moon7Wed
8Thu7:233.27:462.612:300.01:530.06:594:17Full Moon8Thu
9Fri7:593.18:252.61:060.02:260.17:004:17Full Moon9Fri
10Sat8:353.09:042.51:430.12:570.17:004:17Waning Gibbous10Sat
11Sun9:102.89:442.32:210.23:300.27:014:17Waning Gibbous11Sun
12Mon9:482.710:272.23:000.34:080.47:024:17Waning Gibbous12Mon
13Tue10:292.611:142.23:420.44:530.47:034:17Waning Gibbous13Tue
14Wed11:142.44:310.65:460.57:034:18Third Quarter14Wed
15Thu12:032.212:032.35:300.66:370.57:044:18Third Quarter15Thu
16Fri12:532.212:552.36:430.77:220.47:054:18Third Quarter16Fri
17Sat1:452.41:522.28:070.68:090.37:064:18Third Quarter17Sat
18Sun2:422.62:552.39:220.48:590.27:064:19Waning Crescent18Sun
19Mon3:392.93:582.410:200.29:490.07:074:19Waning Crescent19Mon
20Tue4:323.24:542.511:10-0.110:38-0.27:074:20Waning Crescent20Tue
21Wed5:223.55:452.711:59-0.311:27-0.47:084:20Waning Crescent21Wed
22Thu6:123.76:362.912:49-0.57:084:21New Moon22Thu
23Fri7:033.97:273.012:17-0.61:38-0.67:094:21New Moon23Fri
24Sat7:543.98:183.11:09-0.62:26-0.67:094:22New Moon24Sat
25Sun8:463.89:103.12:02-0.63:15-0.67:104:22Waxing Crescent25Sun
26Mon9:393.710:053.02:56-0.54:06-0.47:104:23Waxing Crescent26Mon
27Tue10:343.411:033.03:54-0.45:02-0.37:104:24Waxing Crescent27Tue
28Wed11:313.15:07-0.16:01-0.27:104:24First Quarter28Wed
29Thu12:032.912:302.86:360.16:57-0.17:114:25First Quarter29Thu
30Fri1:042.91:292.57:540.27:510.07:114:26First Quarter30Fri
31Sat2:072.92:322.39:030.28:370.17:114:27First Quarter31Sat
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 11:10 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 spring phase. Tonight's moon is 0% 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 (0% 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