Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Thursday, July 2, 2026
The tide is currently rising in Block Island, RI.
Next low tide (tomorrow) : 4:29 am (0.3 ft)
Next high tide : in 43m at 10:09 pm (3.1 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:17 am
Moon phase : Waning Gibbous (94% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Aug 2055

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:442.83:303.48:580.210:240.45:428:03First Quarter1Sun
2Mon3:522.74:383.410:080.311:250.35:438:02Waxing Gibbous2Mon
3Tue5:002.75:393.411:110.35:448:01Waxing Gibbous3Tue
4Wed5:592.86:323.512:180.312:060.35:457:59Waxing Gibbous4Wed
5Thu6:512.97:203.51:060.212:550.25:467:58Full Moon5Thu
6Fri7:383.08:043.51:490.21:390.25:477:57Full Moon6Fri
7Sat8:223.18:453.42:280.12:190.25:487:56Full Moon7Sat
8Sun9:033.19:233.43:020.12:530.25:497:54Full Moon8Sun
9Mon9:423.19:583.23:320.13:250.35:507:53Waning Gibbous9Mon
10Tue10:193.010:333.13:580.23:570.45:517:52Waning Gibbous10Tue
11Wed10:552.911:092.94:230.24:320.55:527:51Waning Gibbous11Wed
12Thu11:312.911:472.74:530.35:120.65:537:49Waning Gibbous12Thu
13Fri12:102.85:270.45:590.85:547:48Third Quarter13Fri
14Sat12:292.612:512.86:080.56:580.95:557:46Third Quarter14Sat
15Sun1:142.41:372.86:550.68:160.95:567:45Third Quarter15Sun
16Mon2:052.42:292.87:470.69:490.85:577:44Third Quarter16Mon
17Tue3:042.43:312.98:460.610:530.75:587:42Waning Crescent17Tue
18Wed4:112.44:383.19:500.511:440.55:597:41Waning Crescent18Wed
19Thu5:142.65:383.310:550.36:007:39Waning Crescent19Thu
20Fri6:092.96:303.612:290.311:54 AM0.16:017:38Waning Crescent20Fri
21Sat6:593.27:203.81:130.012:48-0.26:027:36New Moon21Sat
22Sun7:483.58:094.01:55-0.21:42-0.36:037:35New Moon22Sun
23Mon8:373.78:584.02:36-0.32:34-0.46:047:33New Moon23Mon
24Tue9:273.99:473.93:17-0.43:26-0.46:057:32Waxing Crescent24Tue
25Wed10:173.910:373.73:56-0.44:19-0.36:067:30Waxing Crescent25Wed
26Thu11:093.911:303.54:38-0.35:17-0.16:077:29Waxing Crescent26Thu
27Fri12:043.85:23-0.16:290.16:087:27First Quarter27Fri
28Sat12:263.21:033.66:170.17:490.36:097:25First Quarter28Sat
29Sun1:252.92:053.47:250.39:020.46:107:24First Quarter29Sun
30Mon2:282.73:123.38:460.410:090.56:117:22First Quarter30Mon
31Tue3:372.64:233.210:020.511:080.56:127:21Waxing Gibbous31Tue
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 1:19 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 94% 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 Waning Gibbous (94% 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