41.1867’ N, 71.5783’ W

Block Island, RI

53°
H -°
L 51°
SSW
5mph
High tide
10:02 pm

Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Wednesday, October 28, 2026
The tide is currently rising in Block Island, RI.
Next low tide (tomorrow) : 3:34 am (-0.2 ft)
Next high tide : in 3h 23m at 10:02 pm (3.1 ft)
Sunset today : 5:47 pm
Sunrise tomorrow : 7:13 am
Moon phase : Waning Gibbous (92% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

Block Island, RI Tides - Aug 1786

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:202.85:140.66:340.94:457:06First Quarter1Tue
2Wed12:252.31:052.75:590.77:510.94:467:05First Quarter2Wed
3Thu1:142.22:002.76:510.79:050.94:477:04First Quarter3Thu
4Fri2:142.13:102.77:510.810:060.84:487:03Waxing Gibbous4Fri
5Sat3:272.14:142.89:020.710:570.74:497:02Waxing Gibbous5Sat
6Sun4:292.35:043.010:110.611:410.54:507:00Waxing Gibbous6Sun
7Mon5:172.55:463.211:050.44:516:59Waxing Gibbous7Mon
8Tue6:012.86:263.412:210.311:54 AM0.24:526:58Full Moon8Tue
9Wed6:433.07:073.612:570.112:400.14:536:57Full Moon9Wed
10Thu7:263.37:483.61:300.01:260.04:546:55Full Moon10Thu
11Fri8:103.58:313.62:01-0.22:11-0.14:556:54Waning Gibbous11Fri
12Sat8:553.69:163.52:33-0.22:560.04:566:53Waning Gibbous12Sat
13Sun9:423.710:043.33:08-0.23:450.14:576:51Waning Gibbous13Sun
14Mon10:323.710:563.13:47-0.24:430.24:586:50Waning Gibbous14Mon
15Tue11:273.611:532.94:320.06:020.44:596:49Third Quarter15Tue
16Wed12:263.55:260.17:290.55:006:47Third Quarter16Wed
17Thu12:542.71:313.46:310.28:450.55:016:46Third Quarter17Thu
18Fri2:012.62:443.37:500.39:510.45:026:44Waning Crescent18Fri
19Sat3:142.73:573.39:200.310:480.35:036:43Waning Crescent19Sat
20Sun4:222.84:583.410:300.211:370.25:046:41Waning Crescent20Sun
21Mon5:183.15:493.511:260.15:056:40Waning Crescent21Mon
22Tue6:093.36:343.512:220.112:160.15:066:38New Moon22Tue
23Wed6:553.47:163.51:010.01:010.05:076:37New Moon23Wed
24Thu7:383.57:543.41:360.01:400.15:086:35New Moon24Thu
25Fri8:183.58:313.32:050.02:150.15:096:34New Moon25Fri
26Sat8:563.49:063.12:280.12:470.25:106:32Waxing Crescent26Sat
27Sun9:333.39:412.92:500.23:190.45:116:31Waxing Crescent27Sun
28Mon10:093.110:182.63:160.33:540.55:126:29Waxing Crescent28Mon
29Tue10:462.910:592.53:480.54:360.75:136:27Waxing Crescent29Tue
30Wed11:282.811:442.34:260.65:310.95:146:26First Quarter30Wed
31Thu12:152.75:120.86:581.05:156:24First Quarter31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8459338)

Common Questions About Block Island, RI Tides

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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 92% 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 (92% 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