Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 1h 31m at 9:27 pm (0.6 ft)
Next high tide (tomorrow) : 2:59 am (2.4 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 2012

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:423.09:142.52:020.13:030.26:524:18Waning Gibbous1Sat
2Sun9:192.99:552.52:400.23:320.36:534:18Waning Gibbous2Sun
3Mon9:592.810:392.43:200.34:070.36:544:17Waning Gibbous3Mon
4Tue10:442.711:292.54:050.44:490.46:554:17Waning Gibbous4Tue
5Wed11:352.64:590.55:390.36:564:17Third Quarter5Wed
6Thu12:212.512:292.56:040.56:350.36:574:17Third Quarter6Thu
7Fri1:162.71:292.57:220.57:330.26:584:17Third Quarter7Fri
8Sat2:162.92:342.58:490.38:350.06:594:17Waning Crescent8Sat
9Sun3:193.23:412.610:000.19:36-0.27:004:17Waning Crescent9Sun
10Mon4:193.54:432.810:57-0.210:33-0.47:014:17Waning Crescent10Mon
11Tue5:153.85:393.011:50-0.411:27-0.57:024:17Waning Crescent11Tue
12Wed6:084.06:323.212:42-0.67:024:17New Moon12Wed
13Thu7:004.17:243.312:21-0.71:33-0.77:034:17New Moon13Thu
14Fri7:524.18:163.31:15-0.72:22-0.77:044:18New Moon14Fri
15Sat8:433.99:073.32:08-0.73:10-0.67:054:18Waxing Crescent15Sat
16Sun9:353.710:013.23:00-0.53:58-0.57:054:18Waxing Crescent16Sun
17Mon10:273.310:563.03:56-0.34:49-0.37:064:19Waxing Crescent17Mon
18Tue11:223.011:542.95:060.05:44-0.17:064:19First Quarter18Tue
19Wed12:182.76:270.26:390.17:074:19First Quarter19Wed
20Thu12:522.81:152.47:390.47:310.27:084:20First Quarter20Thu
21Fri1:532.72:152.28:450.48:220.37:084:20First Quarter21Fri
22Sat2:562.73:192.19:430.49:110.37:094:21Waxing Gibbous22Sat
23Sun3:562.74:162.110:340.49:570.37:094:21Waxing Gibbous23Sun
24Mon4:472.75:052.211:180.310:390.27:094:22Waxing Gibbous24Mon
25Tue5:302.85:472.311:590.211:180.17:104:23Waxing Gibbous25Tue
26Wed6:092.96:262.412:380.17:104:23Full Moon26Wed
27Thu6:442.97:032.51:160.07:104:24Full Moon27Thu
28Fri7:163.07:392.612:35-0.11:51-0.17:114:25Full Moon28Fri
29Sat7:493.08:142.61:12-0.12:21-0.17:114:25Full Moon29Sat
30Sun8:223.08:512.61:49-0.12:46-0.17:114:26Waning Gibbous30Sun
31Mon8:572.92:26-0.13:09-0.17:114:27Waning Gibbous31Mon
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 12:13 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 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