
Surf Forecasts:
Block Island surf forecast from 29 Jul 2026:
- Best quality surf: Wednesday 29 Jul, 8PM (local time) - 7ft (2.1m), 7s period, SSE swell with offshore winds.
- Most powerful swell: Wednesday 29 Jul, 8PM (local time) - 7ft (2.1m), 7s period, SSE swell with 420 kJ wave energy.
- Next surfable swell (1★+): Wednesday 29 Jul, 8PM (local time) - 7ft (2.1m), 7s period with SSE swell.
Best Forecast Surf Conditions for Block Island this week:
The surf forecast for Block Island over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Jul 29) at 8PM. The primary swell is predicted to be 2.1m and 7s period with a secondary swell of 1.1m and 7s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Block Island in the next 16 days are 2.1m 7s and forecast to arrive on Wednesday (Jul 29) at 8PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Thursday (Jul 30) at 8PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Wed 29th Jul) | 7ft (2.1m) 7s |
| Best Surf | 8PM (Wed 29th Jul) | 7ft (2.1m) 7s |
| Most Powerful | 8PM (Wed 29th Jul) | 7ft (2.1m) 7s |
Table - best surf conditions forecast for Block Island over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s on the menu for Block Island.
To be straight with you, the next two weeks are looking pretty flat and quiet. We’ve got a long stretch ahead with nothing really worth paddling out for. The pattern is a whole lot of small, weak, and messy swell, with onshore winds messing things up most days. The first real session isn’t even on the cards until much later.
The first half of the run is a write-off. From Tuesday 28 July right through to the end of the first week, we’re looking at poor surf conditions day after day. Wind is mostly cross-on or onshore, and the swell is tiny, short-period windslop. The combined energy is weak, barely cracking 100 (78) on Tuesday afternoon, and even when it jumps to 211 on Wednesday morning, the 1.6m swell is just lumpy with a fresh cross-onshore breeze. Thursday afternoon shows a bit of clean offshore wind, but at 1.1m from the S, it’s just not got any push or shape. Friday afternoon 31 July is the closest we get to anything: glassy conditions, 0.9m at 8 seconds from the S, but it’s just too small. That’s a major gap of about 6 days of nothing.
Then we hit another dry spell. From Saturday 1 August through to Sunday 9 August, it’s honestly just more of the same. Swell heights drop under 1.0m, periods are short, and the energy is weak. The combined energy on Sunday 2 August is only 82, and by Monday 5 August it’s dropped to 27. It’s a real flat spell. There’s a little spike on Monday 10 August morning with 0.6m from the SSE at 10 seconds and glassy conditions—energy is 105 (moderate)—but we’re still talking about a tiny wave. Clean, but tiny.
The only real standout in the whole window is a long-range call for Wednesday 12 August morning. We’ve got 1.2m from the S at 7 seconds. The combined energy is 151 (moderate), and the wind is light cross-shore from the ENE. The wave comment calls it poor surf, but this is the best we’ve got. The break is Block Island, a point that rarely breaks, so this is a rare chance. The swell direction from the S is right on the optimum for the spot—SE is what it likes. It’s an intermediate-level wave, and crowds are often out there, so expect company. The water temperature is about 20°C, which is a bit colder than normal for this time of year.
After that, it fades back to tiny, cross-on slop for the rest of the run. Honestly, if you’re desperate, the morning of 12 August is your only real shot, and even then, keep expectations low. For the rest of it, the board stays in the car.
Rusty.
Short Range ForecastHeavy rain (total 36mm), heaviest during Wed afternoon. Warm (max 23°C on Tue afternoon, min 18°C on Thu morning). Winds decreasing (fresh winds from the ESE on Wed morning, light winds from the NE by Fri morning). | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Fri afternoon, min 20°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Tue 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | ||||||||||||||||||||
Wave Height (m) Direction Period (s) | S 5 | SSE 5 | SE 6 | SE 7 | SSE 7 | SSE 9 | S 8 | S 10 | S 9 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 7 | SSE 7 | S 7 | S 7 |
Wave Graph | ||||||||||||||||||||
49 | 74 | 171 | 368 | 319 | 270 | 161 | 188 | 146 | 108 | 80 | 104 | 97 | 74 | 93 | 72 | 27 | 29 | 76 | 127 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | on | cross-off | cross-off | off | cross-off | cross-off | glassy | cross-off | on | on | cross-on | on | cross-on | cross-on | cross-on | on | cross-off |
High Tide | 8:20PM0.92m | 8:42AM0.79m | 8:52PM0.93m | 9:17AM0.82m | 9:22PM0.93m | 9:50AM0.84m | 9:54PM0.92m | 10:22AM0.87m | 10:28PM0.90m | 10:55AM0.89m | 11:07PM0.87m | 11:33AM0.91m | 11:50PM0.83m | |||||||
Low Tide | 2:43AM0.07m | 2:24PM0.11m | 3:15AM0.05m | 3:01PM0.11m | 3:42AM0.04m | 3:37PM0.11m | 4:06AM0.04m | 4:15PM0.11m | 4:32AM0.04m | 4:56PM0.12m | 5:02AM0.05m | 5:42PM0.13m | ||||||||
— | — | 5:37 | — | — | 5:39 | — | — | 5:39 | — | — | 5:41 | — | — | 5:41 | — | — | 5:43 | — | — | |
8:07 | — | — | 8:06 | — | — | 8:05 | — | — | 8:04 | — | — | 8:02 | — | — | 8:01 | — | — | 8:00 | — | |
mm | — | 5 | 17 | 11 | — | — | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 22 | 20 | 22 | 21 | 18 | 18 | 19 | 21 | 22 | 22 | 21 | 22 | 21 | 21 | 22 | 22 | 22 | 22 | 22 |
Feels °C | 21 | 20 | 20 | 23 | 21 | 15 | 15 | 16 | 21 | 23 | 23 | 23 | 23 | 20 | 22 | 23 | 23 | 24 | 23 | 24 |
Swell 1 Height (m) Direction Period (s) | SE 9 | SW 6 | SW 6 | SSW 7 | SSE 7 | SSE 9 | S 8 | S 10 | S 9 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 7 | SSE 7 | S 7 | S 7 |
20 | 31 | 39 | 118 | 319 | 270 | 161 | 188 | 146 | 108 | 80 | 104 | 97 | 74 | 93 | 72 | 27 | 29 | 76 | 127 | |
Swell 2 Height (m) Direction Period (s) | E 6 | E 6 | E 8 | — | ENE 6 | ENE 5 | E 6 | — | — | NE 6 | ENE 6 | E 5 | SE 9 | SE 9 | SE 9 | SE 9 | SE 7 | SSW 7 | SE 8 | SE 8 |
3 | 3 | 1 | — | 17 | 16 | 5 | — | — | 8 | 3 | 2 | 3 | 3 | 3 | 3 | 23 | 19 | 3 | 3 | |
Swell 3 Height (m) Direction Period (s) | E 9 | E 8 | — | — | — | — | SE 10 | — | — | — | SE 10 | SE 10 | E 5 | E 5 | — | — | SE 9 | SE 9 | E 8 | — |
6 | 6 | — | — | — | — | 4 | — | — | — | 4 | 4 | 1 | 1 | — | — | 3 | 3 | 1 | — | |
Wind waves Height (m) Direction Period (s) | S 5 | SSE 5 | SE 6 | SE 7 | — | — | N 4 | NNE 5 | NE 6 | — | — | — | — | SW 3 | SW 4 | SSW 4 | SSW 4 | — | — | — |
49 | 74 | 171 | 368 | — | — | 16 | 38 | 15 | — | — | — | — | 5 | 2 | 7 | 6 | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 1804 | 335 | 181 | 24 | 25 | 25 | 26 | 24 | 24 | 24 | 24 | 26 | 26 | 24 | 634 | 1505 | 249 | 371 | 26 | 24 |
Best forecast wave conditions in Rhode Island | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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Information about the Block Island Surf forecast
The above surf forecast table for Block Island provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Block Island can be found by selecting the local surf guide option on the grey menu. Our Block Island surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Block Island) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Block Island may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Block Island is 33 km (20 miles) from Westerly. If you plan a vacation in Rhode Island, look for hotels and other accommodation in Westerly. Westerly has rooms for a wide range of budgets as well as car hire and transport links.










