Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 5h 26m at 2:51 pm (0.4 ft)
Next high tide : 9:33 pm (3.2 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:17 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Jan 2003

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:063.76:282.812:44-0.57:114:27New Moon1Wed
2Thu6:563.77:172.912:19-0.41:31-0.57:114:28New Moon2Thu
3Fri7:443.68:052.91:08-0.52:15-0.57:114:29New Moon3Fri
4Sat8:313.48:512.81:54-0.42:55-0.47:114:30Waxing Crescent4Sat
5Sun9:163.29:372.72:35-0.33:33-0.27:114:31Waxing Crescent5Sun
6Mon10:003.010:242.63:15-0.14:10-0.17:114:32Waxing Crescent6Mon
7Tue10:442.711:122.53:560.14:460.07:114:33Waxing Crescent7Tue
8Wed11:292.411:592.44:440.35:230.27:114:34First Quarter8Wed
9Thu12:142.25:480.56:030.37:114:35First Quarter9Thu
10Fri12:462.31:002.07:120.66:460.37:114:36First Quarter10Fri
11Sat1:352.31:541.98:280.67:340.47:104:37First Quarter11Sat
12Sun2:302.32:591.89:320.58:280.37:104:38Waxing Gibbous12Sun
13Mon3:312.44:021.910:270.49:250.37:104:39Waxing Gibbous13Mon
14Tue4:242.54:522.011:150.210:180.17:094:40Waxing Gibbous14Tue
15Wed5:092.75:352.211:590.111:060.07:094:41Waxing Gibbous15Wed
16Thu5:512.96:152.312:41-0.17:094:43Full Moon16Thu
17Fri6:323.16:572.51:20-0.27:084:44Full Moon17Fri
18Sat7:143.27:392.712:36-0.31:56-0.37:084:45Full Moon18Sat
19Sun7:563.38:232.81:21-0.42:29-0.47:074:46Full Moon19Sun
20Mon8:403.39:092.92:05-0.53:02-0.47:064:47Waning Gibbous20Mon
21Tue9:253.29:572.92:51-0.43:36-0.47:064:48Waning Gibbous21Tue
22Wed10:133.010:483.03:39-0.34:14-0.47:054:50Waning Gibbous22Wed
23Thu11:042.811:433.04:35-0.24:59-0.37:044:51Third Quarter23Thu
24Fri12:002.65:460.05:51-0.27:044:52Third Quarter24Fri
25Sat12:413.012:592.47:150.16:51-0.17:034:53Third Quarter25Sat
26Sun1:443.02:062.28:410.18:01-0.17:024:54Third Quarter26Sun
27Mon2:543.03:202.29:520.09:23-0.17:014:56Waning Crescent27Mon
28Tue4:033.14:282.310:53-0.110:32-0.27:014:57Waning Crescent28Tue
29Wed5:043.25:262.511:46-0.211:30-0.37:004:58Waning Crescent29Wed
30Thu5:583.36:172.712:34-0.36:594:59New Moon30Thu
31Fri6:473.37:042.812:22-0.41:18-0.46:585:01New Moon31Fri
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 6:12 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 spring phase. Tonight's moon is 97% 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 Full Moon (97% 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