Surf Forecasts:
Block Island surf forecast from 2 Aug 2026:
- Best quality surf: Monday 3 Aug, 11PM (local time) - 8ft (2.4m), 8s period, SSW swell with offshore winds.
- Most powerful swell: Monday 3 Aug, 2PM (local time) - 10ft (3.0m), 8s period, S swell with 1,220 kJ wave energy.
- Next surfable swell (1★+): Monday 3 Aug, 11PM (local time) - 8ft (2.4m), 8s period with SSW 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 Monday (Aug 03) at 11PM. The primary swell is predicted to be 2.4m and 8s period. 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 3.0m 8s and forecast to arrive on Monday (Aug 03) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 6s period and expected on Saturday (Aug 08) at 5AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Mon 3rd Aug) | 8ft (2.4m) 8s |
| Best Surf | 11PM (Mon 3rd Aug) | 8ft (2.4m) 8s |
| Most Powerful | 2PM (Mon 3rd Aug) | 10ft (3.0m) 8s |
Table - best surf conditions forecast for Block Island over the next 16 days.
The Lowdown
Alright, let’s get real. The first few days are a total loss. There’s some swell around, but the wind on Block Island is howling cross-onshore and just ruins it. You’ll get a clean one on Tuesday, August 4th with a light offshore breeze, but it’s only 2 feet of small stuff.
After that, it’s a long, grim run. The wind stays in the wrong quarter for days, making a mess of everything. The water temp is a brutal 68°, which is much colder than normal for this time of year – that’s a 4° difference, so you’ll need a full winter suit.
There’s a bit more size around Monday, August 10th and Tuesday, August 11th, with clean cross-off winds on Tuesday morning. The swell hits 4 feet to 7 feet, but with a short period around 7 seconds, it’s going to be fat and weak. The combined energy (475) on that Monday afternoon shows there’s some push, but the wind will trash it for Block Island.
The only real standout, and I mean the only one worth paddling out for, is Tuesday morning, August 11th. A clean, cross-off breeze from the north at 9 mph on that 4-foot south swell. It’s small, it’s only a brief window, and the swell period is short (7 seconds), so the waves will be weak and crumbly. But it’ll be clean, and that’s a rare win in this forecast.
After that, we get a glassy morning on Wednesday, August 12th (3 feet, ENE breeze), but it’s tiny. The rest of the week stays small and choppy. A bump of 5 feet on Saturday, August 15th, but with that SE wind, it’s another messy day.
For a point break that “rarely breaks,” this run is a tough one. The setup is more interesting for kite surfing than paddle surfing through most of the stronger south swell days. But hang in there – forecasts can change, and we’re due a clean one.
Rusty.
Short Range ForecastModerate rain (total 15mm), heaviest on Sun night. Warm (max 25°C on Tue afternoon, min 21°C on Mon night). Winds decreasing (strong winds from the SW on Mon afternoon, light winds from the W by Tue morning). | Days 4-6 Weather SummaryModerate rain (total 10mm), heaviest on Wed morning. Warm (max 26°C on Fri afternoon, min 23°C on Wed morning). Mainly fresh winds. | ||||||||||||||||||||
Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | |||||||||||||||
AM | 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 7 | S 7 | S 5 | S 8 | SSW 9 | S 8 | S 8 | S 8 | SSW 7 | SSW 7 | S 7 | SSW 6 | SSW 6 | SSW 6 | SSW 7 | SSW 7 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 26 | 24 | 57 | 964 | 1189 | 617 | 295 | 193 | 91 | 206 | 163 | 87 | 145 | 190 | 361 | 198 | 149 | 136 | 97 | 73 | 71 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | cross-on | cross-on | off | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross | cross-on | cross |
High Tide | 10:55AM0.89m | 11:07PM0.87m | 11:33AM0.91m | 11:50PM0.83m | 12:17PM0.93m | 00:39AM0.78m | 1:08PM0.94m | 1:35AM0.74m | 2:09PM0.95m | 2:40AM0.71m | 3:20PM0.97m | 3:52AM0.71m | 4:35PM1.00m | ||||||||
Low Tide | 4:56PM0.12m | 5:02AM0.05m | 5:42PM0.13m | 5:39AM0.06m | 6:38PM0.14m | 6:24AM0.07m | 7:51PM0.16m | 7:16AM0.08m | 9:20PM0.16m | 8:19AM0.08m | 10:36PM0.14m | 9:31AM0.06m | 11:40PM0.10m | ||||||||
 |  |  |  | | |  | |  | | | | | |  | | |  | | | | |
 | 5:41 | — | — | 5:43 | — | — | 5:43 | — | — | 5:45 | — | — | 5:46 | — | — | 5:47 | — | — | 5:48 | — | — |
 | — | 8:01 | — | — | 8:00 | — | — | 7:59 | — | — | 7:58 | — | — | 7:57 | — | — | 7:55 | — | — | 7:54 | — |
mm | — | — | 5 | 3 | 3 | 4 | — | — | — | 4 | 1 | — | — | — | — | — | — | 5 | — | — | — |
Temp °C | 23 | 24 | 24 | 24 | 23 | 23 | 23 | 25 | 24 | 25 | 25 | 24 | 24 | 24 | 24 | 25 | 26 | 24 | 24 | 25 | 26 |
Feels °C | 23 | 25 | 25 | 21 | 18 | 21 | 23 | 22 | 21 | 26 | 24 | 23 | 24 | 23 | 23 | 26 | 26 | 27 | 27 | 26 | 27 |
Swell 1 Height (m) Direction Period (s) | S 7 | S 7 | SE 9 | — | — | S 8 | S 8 | S 8 | SSW 7 | SSW 7 | S 7 | SE 7 | E 10 | E 11 | SE 8 | SE 8 | SE 8 | SE 8 | SSW 6 | SE 8 | SE 8 |
| kJ | 26 | 24 | 12 | — | — | 617 | 295 | 193 | 91 | 79 | 163 | 17 | 2 | 2 | 9 | 9 | 10 | 32 | 97 | 31 | 15 |
Swell 2 Height (m) Direction Period (s) | SE 7 | SE 7 | — | — | — | — | — | — | SE 6 | SE 7 | E 10 | SE 9 | E 10 | E 9 | E 9 | E 10 | E 9 | E 9 | SE 8 | E 8 | E 8 |
| kJ | 17 | 16 | — | — | — | — | — | — | 25 | 36 | 2 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 30 | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | SE 9 | S 8 | — | — | — | — | — | — | E 12 | E 10 | — | SE 8 | — | — | — | E 9 | — | — | E 8 | — | — |
| kJ | 3 | 1 | — | — | — | — | — | — | 3 | 2 | — | 3 | — | — | — | 2 | — | — | 1 | — | — |
Wind waves Height (m) Direction Period (s) | S 4 | S 4 | S 5 | S 8 | SSW 9 | — | — | — | — | SSW 7 | — | SSW 6 | SSW 6 | SSW 6 | SSW 7 | SSW 7 | SSW 6 | SSW 6 | — | SSW 6 | SSW 6 |
| kJ | 13 | 17 | 57 | 964 | 1189 | — | — | — | — | 206 | — | 87 | 145 | 190 | 361 | 198 | 149 | 136 | — | 73 | 71 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 767 | 1679 | 1222 | 216 | 217 | 0 | 0 | 24 | 24 | 634 | 665 | 24 | 665 | 24 | 204 | 24 | 24 | 24 | 24 | 397 | 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.
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