
Surf Forecasts:
Block Island surf forecast from 3 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) - 11ft (3.5m), 9s period, S swell with 1,708 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 3.5m 9s and forecast to arrive on Monday (Aug 03) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| 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) | 11ft (3.5m) 9s |
Table - best surf conditions forecast for Block Island over the next 16 days.
The Lowdown
Alright, I’m looking at the coming weeks for Block Island. Honestly, the outlook is a long, flat stretch of nothing very special. We’ve got a big window of mostly poor surf conditions, with gnarly winds and choppy seas, so don’t hold your breath for anything epic. There’s a brief window of hope, but you’ll have to be patient.
The first real chance comes on Tuesday, August 4th, in the morning. The wave energy is moderate (280) with a 5-foot swell from the south, but the period is a short 8 seconds, so these won’t be groundswells with much punch. What makes it stand out is the glassy, near-flat wind – a light westerly at 3 mph. That’s about as clean as it gets here. The water temperature is about what you’d expect for this time of year, so no surprises there. Block Island is a point break that’s exposed to the south, and this is the one time everything lines up for a decent, clean session. It’s a break that rarely breaks, so on a morning like this, it’s a rare treat. Crowds are often an issue here, so get there early if you want a piece.
The rest of the first week and into the second is a mess. Monday afternoon on August 3rd is blown out by strong cross-onshore winds, with a 10-foot swell and a massive 1429 energy reading, but it’s all wind-chop and messy. From Wednesday, August 5th, through to the end of the second week, every day is a mix of onshore or cross-onshore winds, choppy seas, and small, weak swells. The energy drops to the low 100s and even below 100, with periods as short as 5 to 7 seconds. It’s not worth paddling out for.
The only thing that might be of interest is on Saturday, August 15th, in the afternoon. You get a 5-foot swell from the SSW with a 7-second period, and for the first time in a while, a fresh offshore wind from the north-northwest. The energy is moderate (215), and the wind is clean. It’s a marginal forecast, but it’s the best the second week has to offer. If you’re desperate, it might be worth a look, but don’t expect much.
Overall, the standout is that Tuesday morning, August 4th. Everything else is a write-off until the offshore wind on the 15th. Keep your eyes on the forecasts, but for now, I’d be planning a breakfast session on the 4th.
Rusty
Short Range ForecastHeavy rain (total 40mm), heaviest during Mon afternoon. Warm (max 25°C on Wed afternoon, min 20°C on Mon night). Winds decreasing (strong winds from the SSW on Mon morning, calm by Tue morning). | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Fri night. Warm (max 28°C on Sat afternoon, min 23°C on Wed night). Winds decreasing (fresh winds from the SW on Wed night, light winds from the W by Sat morning). | ||||||||||||||||||
Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | ||||||||||||||
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 6 | S 8 | SSW 8 | SSW 8 | S 8 | SSW 8 | SSW 7 | S 8 | SSW 7 | SSW 7 | SSW 7 | SSW 6 | SSW 6 | SSW 7 | SSW 7 | SSW 6 | SSW 6 | SSW 6 | SSW 6 |
Wave Graph | |||||||||||||||||||
76 | 1429 | 1276 | 574 | 280 | 123 | 78 | 241 | 498 | 312 | 144 | 139 | 253 | 192 | 134 | 107 | 71 | 48 | 53 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | off | glassy | cross-on | cross-on | on | cross-on | cross | cross-on | cross-on | cross | cross | 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 | 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 | 5 | 3 | 14 | 6 | — | — | — | 9 | 3 | — | — | — | — | — | — | 3 | — | — | 1 |
Temp °C | 24 | 24 | 23 | 23 | 22 | 24 | 24 | 24 | 25 | 24 | 25 | 26 | 25 | 26 | 27 | 25 | 25 | 28 | 27 |
Feels °C | 25 | 22 | 19 | 22 | 22 | 21 | 21 | 25 | 25 | 26 | 25 | 26 | 25 | 27 | 26 | 25 | 27 | 28 | 26 |
Swell 1 Height (m) Direction Period (s) | SE 8 | — | — | SSW 8 | S 8 | SSW 8 | SSW 7 | SSW 8 | E 10 | E 10 | SE 6 | SE 8 | ESE 8 | SSW 7 | SE 8 | SE 8 | SSW 6 | SSE 8 | SE 7 |
10 | — | — | 574 | 280 | 123 | 78 | 92 | 2 | 2 | 14 | 10 | 6 | 192 | 9 | 16 | 71 | 23 | 14 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | SE 7 | SE 7 | E 10 | — | — | SE 8 | E 9 | E 10 | SE 8 | E 9 | E 9 | SE 8 | E 8 | E 8 |
— | — | — | — | — | 47 | 47 | 2 | — | — | 2 | 2 | 2 | 9 | 2 | 2 | 31 | 1 | 1 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | E 12 | — | — | — | E 11 | — | — | — | — | — | E 8 | — | — |
— | — | — | — | — | — | 3 | — | — | — | 2 | — | — | — | — | — | 1 | — | — | |
Wind waves Height (m) Direction Period (s) | S 6 | S 8 | SSW 8 | — | — | — | — | S 8 | SSW 7 | SSW 7 | SSW 7 | SSW 6 | SSW 6 | — | SSW 7 | SSW 6 | — | SSW 6 | SSW 6 |
76 | 1429 | 1276 | — | — | — | — | 241 | 498 | 312 | 144 | 139 | 253 | — | 134 | 107 | — | 48 | 53 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1222 | 1528 | 217 | 0 | 0 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 204 | 219 | 24 | 219 | 24 | 397 | 219 |
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.











