Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently falling in Block Island, RI.
Next low tide : in 10m at 9:10 pm (0.6 ft)
Next high tide (tomorrow) : 2:56 am (2.6 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:21 am
Moon phase : Third Quarter (41% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Apr 2066

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:062.512:482.06:190.66:020.56:287:11First Quarter1Thu
2Fri12:552.31:422.08:110.77:020.66:267:12First Quarter2Fri
3Sat1:522.22:432.09:280.78:180.76:257:13First Quarter3Sat
4Sun2:592.23:542.110:250.69:550.66:237:14First Quarter4Sun
5Mon4:142.34:542.311:090.411:040.46:217:15Waxing Gibbous5Mon
6Tue5:122.55:412.711:450.211:550.16:207:16Waxing Gibbous6Tue
7Wed5:582.76:233.012:170.06:187:18Waxing Gibbous7Wed
8Thu6:402.97:043.412:41-0.112:47-0.26:167:19Waxing Gibbous8Thu
9Fri7:233.07:463.61:25-0.31:20-0.36:157:20Full Moon9Fri
10Sat8:073.18:303.82:09-0.51:56-0.56:137:21Full Moon10Sat
11Sun8:523.19:163.92:53-0.52:36-0.56:127:22Full Moon11Sun
12Mon9:393.110:043.83:37-0.53:18-0.56:107:23Waning Gibbous12Mon
13Tue10:293.010:553.74:23-0.44:03-0.46:087:24Waning Gibbous13Tue
14Wed11:222.911:523.55:16-0.24:53-0.26:077:25Waning Gibbous14Wed
15Thu12:212.86:260.05:540.06:057:26Third Quarter15Thu
16Fri12:543.21:242.77:440.17:250.26:047:27Third Quarter16Fri
17Sat1:593.02:312.78:540.29:090.36:027:28Third Quarter17Sat
18Sun3:082.93:412.89:550.210:250.26:017:29Third Quarter18Sun
19Mon4:172.84:483.010:490.111:260.15:597:30Waning Crescent19Mon
20Tue5:182.85:443.211:350.05:587:31Waning Crescent20Tue
21Wed6:092.86:333.312:190.012:150.05:567:33Waning Crescent21Wed
22Thu6:552.87:163.41:050.012:50-0.15:557:34New Moon22Thu
23Fri7:372.97:563.41:48-0.11:21-0.15:537:35New Moon23Fri
24Sat8:182.88:343.42:26-0.11:51-0.15:527:36New Moon24Sat
25Sun8:572.89:093.33:000.02:210.05:517:37New Moon25Sun
26Mon9:352.79:443.13:310.02:540.15:497:38Waxing Crescent26Mon
27Tue10:122.610:182.94:010.13:300.25:487:39Waxing Crescent27Tue
28Wed10:522.510:552.84:320.34:070.35:477:40Waxing Crescent28Wed
29Thu11:342.311:362.65:080.44:480.55:457:41Waxing Crescent29Thu
30Fri12:202.25:560.65:360.65:447:42First Quarter30Fri
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 12:03 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 41% 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 Third Quarter (41% 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