Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently rising in Block Island, RI.
Next low tide : 11:20 pm (0.6 ft)
Next high tide : in 2h 14m at 4:43 pm (3.0 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:14 am
Moon phase : Waxing Gibbous (76% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Jan 2045

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:143.45:452.712:04-0.37:114:28Waxing Gibbous1Sun
2Mon6:083.76:372.912:54-0.57:114:29Full Moon2Mon
3Tue7:013.87:283.112:20-0.71:42-0.77:114:30Full Moon3Tue
4Wed7:523.98:193.21:15-0.82:28-0.77:114:31Full Moon4Wed
5Thu8:433.89:113.32:09-0.83:13-0.77:114:32Waning Gibbous5Thu
6Fri9:333.510:033.23:03-0.73:57-0.67:114:33Waning Gibbous6Fri
7Sat10:243.210:583.23:59-0.44:43-0.47:114:34Waning Gibbous7Sat
8Sun11:172.811:553.15:05-0.25:31-0.27:114:35Third Quarter8Sun
9Mon12:122.56:240.06:22-0.17:114:36Third Quarter9Mon
10Tue12:532.91:092.27:390.27:160.17:104:37Third Quarter10Tue
11Wed1:552.82:132.08:500.38:170.27:104:38Third Quarter11Wed
12Thu3:022.73:231.99:530.39:220.37:104:39Waning Crescent12Thu
13Fri4:072.74:262.010:470.310:200.37:094:40Waning Crescent13Fri
14Sat5:022.75:182.111:340.211:090.27:094:41Waning Crescent14Sat
15Sun5:492.86:022.212:150.17:094:42Waning Crescent15Sun
16Mon6:312.86:432.312:530.07:084:43New Moon16Mon
17Tue7:082.97:202.412:300.01:29-0.17:084:45New Moon17Tue
18Wed7:422.97:562.51:06-0.12:01-0.17:074:46New Moon18Wed
19Thu8:142.98:292.51:40-0.12:29-0.27:064:47New Moon19Thu
20Fri8:442.89:022.52:13-0.12:53-0.27:064:48Waxing Crescent20Fri
21Sat9:152.79:372.52:450.03:16-0.17:054:49Waxing Crescent21Sat
22Sun9:502.610:142.53:200.13:43-0.17:054:50Waxing Crescent22Sun
23Mon10:282.410:552.63:590.24:15-0.17:044:52Waxing Crescent23Mon
24Tue11:132.211:412.64:440.34:550.07:034:53First Quarter24Tue
25Wed12:042.15:400.45:430.07:024:54First Quarter25Wed
26Thu12:322.61:012.06:520.46:400.17:014:55First Quarter26Thu
27Fri1:322.72:082.08:380.37:450.07:014:57First Quarter27Fri
28Sat2:422.83:232.110:000.18:59-0.17:004:58Waxing Gibbous28Sat
29Sun3:563.04:312.410:59-0.110:14-0.36:594:59Waxing Gibbous29Sun
30Mon5:003.35:302.711:51-0.411:19-0.56:585:00Waxing Gibbous30Mon
31Tue5:563.56:233.012:39-0.66:575:02Full Moon31Tue
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 8:01 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 transitional phase. Tonight's moon is 76% 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 Waxing Gibbous (76% 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