Surf Forecasts:
Block Island surf forecast from 2 Aug 2026:
- Best quality surf: Monday 3 Aug, 11PM (local time) - 8ft (2.5m), 8s period, SSW swell with offshore winds.
- Most powerful swell: Monday 3 Aug, 5PM (local time) - 10ft (3.0m), 9s period, SSW swell with 1,302 kJ wave energy.
- Next surfable swell (1★+): Monday 3 Aug, 11PM (local time) - 8ft (2.5m), 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 2.5m 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 9s and forecast to arrive on Monday (Aug 03) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 6s period and expected on Friday (Aug 07) at 11AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Mon 3rd Aug) | 8ft (2.5m) 8s |
| Best Surf | 11PM (Mon 3rd Aug) | 8ft (2.5m) 8s |
| Most Powerful | 5PM (Mon 3rd Aug) | 10ft (3.0m) 9s |
Table - best surf conditions forecast for Block Island over the next 16 days.
The Lowdown
Alright, I’m Rusty, and I’ve been staring at the charts for Block Island. Let’s be straight with you – this is a tough stretch. The entire 16-day window is a write-off for decent surf. We’re looking at a long, grim gap from the start all the way through. There’s nothing here that’s worth paddling out for.
The first recommendation is scheduled for August 2nd Sunday afternoon, but don’t get your hopes up. We’ve got a puny 2 ft of south swell with a short period of 7 seconds, and the combined energy is a measly (52). On top of that, the wind is onshore from the SSE at 12 mph and the water is 68° – that’s much colder than normal for this time of year. It’s a total dud.
The forecast just gets worse from there. August 3rd Monday morning sees a jump in height to 8 ft, but it’s all wind-affected, messy, and coming with a strong cross-onshore from the SSW at 28 mph. The energy bumps up to (850) but it’s ugly. By Monday afternoon, the swell hits 10 ft (energy of 1302) but it’s still cross-onshore and lumpy. That’s expert-only territory, and even then, the conditions are horrible.
The rest of the first week and into the second is a repeat of the same story: small to moderate swell, but always with onshore or cross-onshore winds, choppy, lumpy, or just plain poor. On August 11th Tuesday morning, we finally get a clean moment with a light WNW cross-offshore breeze at 6 mph, but the swell is a pathetic 3 ft with a 7-second period and energy of only (102). It’s clean, but there’s no power behind it.
The pattern holds through the end of the window. August 15th Saturday morning is another clean pocket with a light NNE cross-offshore wind, but again, it’s just 3 ft of south swell at 8 seconds (energy 148). You’ll be bobbing around on small, weak waves.
Bottom line: Block Island is a point break that rarely breaks, and it’s living up to that reputation. There’s no standout session, no hidden gem, no reason to get excited. When the time comes, the wind is always wrong or the swell is too small. This is one of those stretches where the forecast is just a blank page. It won’t stay this way forever, but right now, you’re better off finding something else to do.
- Rusty
Short Range ForecastHeavy rain (total 37mm), heaviest during Mon afternoon. Warm (max 25°C on Tue night, min 22°C on Mon afternoon). Winds decreasing (strong winds from the SSW on Mon morning, light winds from the E by Tue morning). | Days 5-7 Weather SummarySome drizzle, heaviest during Wed afternoon. Warm (max 26°C on Fri afternoon, min 23°C on Wed afternoon). Mainly fresh winds. | |||||||||||||||||||
Sun 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | ||||||||||||||
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 5 | S 8 | SSW 9 | SSW 8 | S 8 | S 8 | S 7 | S 8 | SSW 7 | SSW 6 | SSW 6 | SSW 6 | SSW 7 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 |
Wave Graph  | ||||||||||||||||||||
 kJ | 24 | 94 | 850 | 1302 | 560 | 241 | 191 | 117 | 418 | 160 | 134 | 165 | 146 | 372 | 145 | 114 | 141 | 99 | 103 | 222 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross-on | cross-off | cross | on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross | cross | cross-on | cross |
High Tide | 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 | |||||||
 |  |  |  | |  | |  |  | | | | |  | | | | | | | |
 | — | — | 5:43 | — | — | 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 | — | 6 | 5 | 18 | 7 | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 24 | 24 | 23 | 23 | 23 | 24 | 25 | 25 | 24 | 24 | 24 | 25 | 24 | 25 | 26 | 25 | 26 | 27 | 25 |
Feels °C | 24 | 25 | 21 | 22 | 21 | 22 | 23 | 27 | 26 | 23 | 23 | 25 | 24 | 24 | 26 | 26 | 25 | 26 | 25 | 24 |
Swell 1 Height (m) Direction Period (s) | S 7 | SE 9 | — | — | SSW 8 | S 8 | S 8 | S 7 | S 8 | SE 7 | E 10 | E 10 | SE 8 | SE 8 | SSW 6 | SE 8 | SE 8 | SE 8 | SE 8 | E 8 |
| kJ | 24 | 3 | — | — | 560 | 241 | 191 | 117 | 418 | 37 | 2 | 2 | 9 | 9 | 145 | 10 | 16 | 31 | 31 | 1 |
Swell 2 Height (m) Direction Period (s) | S 8 | — | — | — | — | SE 7 | — | E 11 | E 10 | E 10 | — | — | E 11 | E 9 | SE 7 | E 9 | E 9 | E 8 | E 8 | E 8 |
| kJ | 1 | — | — | — | — | 57 | — | 2 | 2 | 2 | — | — | 2 | 2 | 9 | 2 | 2 | 1 | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | SE 9 | — | — | — | — | — | — | — | — | — | E 10 | — | — | — | — | — | — | — | — | — |
| kJ | 3 | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSE 4 | S 5 | S 8 | SSW 9 | — | NNE 3 | — | — | — | SSW 7 | SSW 6 | SSW 6 | SSW 6 | SSW 7 | WSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 |
| kJ | 24 | 94 | 850 | 1302 | — | 1 | — | — | — | 160 | 134 | 165 | 146 | 372 | 67 | 114 | 141 | 99 | 103 | 222 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 1541 | 1222 | 1528 | 24 | 24 | 24 | 24 | 24 | 24 | 966 | 24 | 24 | 24 | 204 | 219 | 24 | 24 | 29 | 24 | 325 |
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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