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 5h 36m 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 - Mar 2055

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon9:112.79:252.72:45-0.12:56-0.26:205:37Waxing Crescent1Mon
2Tue9:442.59:592.73:160.03:25-0.16:185:38Waxing Crescent2Tue
3Wed10:222.410:382.63:520.14:000.06:165:39Waxing Crescent3Wed
4Thu11:062.211:232.54:330.34:400.16:155:40First Quarter4Thu
5Fri11:562.15:240.45:300.26:135:41First Quarter5Fri
6Sat12:152.512:522.16:290.46:280.26:125:42First Quarter6Sat
7Sun1:152.51:572.18:140.47:350.26:105:43First Quarter7Sun
8Mon2:242.63:102.39:440.28:530.16:085:45Waxing Gibbous8Mon
9Tue3:392.84:172.610:390.010:11-0.26:075:46Waxing Gibbous9Tue
10Wed4:433.15:142.911:27-0.311:14-0.56:055:47Waxing Gibbous10Wed
11Thu5:383.46:063.312:12-0.66:045:48Waxing Gibbous11Thu
12Fri6:303.66:563.612:10-0.712:56-0.86:025:49Full Moon12Fri
13Sat7:193.77:453.81:04-0.91:37-0.96:005:50Full Moon13Sat
14Sun9:083.79:333.91:55-1.03:17-0.96:596:51Full Moon14Sun
15Mon9:563.510:223.83:45-0.93:56-0.86:576:52Waning Gibbous15Mon
16Tue10:453.311:133.64:35-0.74:35-0.66:556:53Waning Gibbous16Tue
17Wed11:372.95:31-0.45:17-0.36:546:55Waning Gibbous17Wed
18Thu12:083.312:322.66:39-0.16:060.06:526:56Third Quarter18Thu
19Fri1:063.01:312.47:540.17:160.26:506:57Third Quarter19Fri
20Sat2:092.82:362.29:050.38:580.46:496:58Third Quarter20Sat
21Sun3:202.63:482.210:110.410:160.46:476:59Third Quarter21Sun
22Mon4:322.54:572.211:070.311:170.46:457:00Waning Crescent22Mon
23Tue5:322.55:512.411:540.36:447:01Waning Crescent23Tue
24Wed6:202.66:362.612:050.312:330.26:427:02Waning Crescent24Wed
25Thu7:012.77:152.712:470.11:080.16:407:03Waning Crescent25Thu
26Fri7:372.87:502.91:240.01:39-0.16:397:04New Moon26Fri
27Sat8:092.98:213.01:59-0.12:06-0.16:377:05New Moon27Sat
28Sun8:402.98:513.02:32-0.12:31-0.26:357:06New Moon28Sun
29Mon9:112.89:223.03:02-0.12:56-0.26:337:08New Moon29Mon
30Tue9:432.79:543.03:30-0.13:23-0.16:327:09Waxing Crescent30Tue
31Wed10:192.610:293.03:590.03:54-0.16:307:10Waxing Crescent31Wed
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