Surf Forecasts:
Block Island surf forecast from 29 Jul 2026:
- Best quality surf: Wednesday 29 Jul, 11PM (local time) - 5ft (1.6m), 7s period, SSE swell with glassy winds.
- Most powerful swell: Wednesday 29 Jul, 5PM (local time) - 7ft (2.1m), 7s period, SSE swell with 401 kJ wave energy.
- Next surfable swell (1★+): Wednesday 29 Jul, 11PM (local time) - 5ft (1.6m), 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 11PM. The primary swell is predicted to be 1.6m and 7s period with a secondary swell of 0.5m and 7s. Another secondary swell of 0.9m and 5s is also forecast. The wind is predicted to be glassy 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 5PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Thursday (Jul 30) at 8PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Wed 29th Jul) | 5ft (1.6m) 7s |
| Best Surf | 11PM (Wed 29th Jul) | 5ft (1.6m) 7s |
| Most Powerful | 5PM (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 chew the fat on what’s happening at Block Island for the next couple of weeks.
Honestly, it’s looking like a pretty lean stretch. The start is rough with moderate rain and a choppy onshore wind on Wednesday, July 29th – that’s a definite skip. There’s one window that shows some real promise, and that’s about it for the whole outlook.
The Best of the Bunch:
Get yourself to Block Island (Block Island) on the morning of Thursday, July 30th. We’ve got a clean 4ft swell coming from the SSE, and a light offshore breeze from the NW is going to keep the faces smooth. The combined energy is solid at 285, nothing crazy, but the offshore wind makes it the standout session. The water temp feels about normal for the season. The afternoon drops to a clean 4ft with a moderate offshore, but the energy fades a little.
From Friday, July 31st onward, it’s a long, flat spell. Swell drops below 3ft, and most days you’re looking at ankle-to-knee high slop at best. Onshore and cross-onshore winds are the norm, and the wave energy gets weak – falling to values like 22 or even 11 by the second week. Conditions are labelled “poor” right up to Thursday, August 13th. You’ll get a few clean mornings with a cross-offshore breeze here and there, like on August 4th and 11th, but with the swell so small, there’s not much to ride.
This spot rarely breaks anyway, so a long quiet run like this is pretty standard for the area. Don’t hold your breath, just keep the wax dry.
Rusty.
Short Range ForecastHeavy rain (total 21mm), heaviest during Wed morning. Warm (max 22°C on Tue night, min 18°C on Thu night). Winds decreasing (fresh winds from the SE on Tue night, calm by Wed night). | Days 5-7 Weather SummarySome drizzle, heaviest during Mon morning. Warm (max 23°C on Mon afternoon, min 18°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | ||||||||||||||
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) | SSE 5 | SE 5 | SSE 7 | SSE 7 | SSE 8 | S 8 | S 8 | S 9 | S 8 | S 8 | S 8 | S 8 | S 7 | SSW 7 | S 7 | S 4 | S 7 | S 7 | S 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 109 | 129 | 401 | 251 | 223 | 157 | 72 | 162 | 108 | 80 | 107 | 60 | 40 | 49 | 24 | 33 | 73 | 80 | 187 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | on | cross-off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-off | on | on | cross-on | 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 | 2 | 10 | 5 | — | — | — | 4 | — | — | — | — | — | — | — | — | — | 1 | — | 3 |
Temp °C | 22 | 21 | 22 | 22 | 21 | 19 | 18 | 18 | 20 | 20 | 19 | 21 | 21 | 21 | 22 | 22 | 22 | 23 | 23 |
Feels °C | 20 | 19 | 22 | 24 | 22 | 18 | 16 | 15 | 18 | 19 | 19 | 22 | 22 | 21 | 23 | 22 | 22 | 24 | 21 |
Swell 1 Height (m) Direction Period (s) | E 6 | SSW 6 | E 7 | SSE 7 | SSE 8 | S 8 | S 8 | S 9 | S 8 | S 8 | S 8 | S 8 | S 7 | SE 7 | S 7 | SE 6 | SE 9 | S 7 | S 8 |
| kJ | 3 | 67 | 1 | 251 | 223 | 157 | 72 | 162 | 108 | 80 | 107 | 60 | 40 | 12 | 24 | 10 | 3 | 80 | 187 |
Swell 2 Height (m) Direction Period (s) | E 8 | — | — | ENE 5 | SSW 7 | E 6 | E 6 | — | ENE 6 | ENE 6 | E 5 | SE 7 | SE 7 | SE 9 | SE 7 | SE 9 | SE 9 | SE 8 | E 7 |
| kJ | 6 | — | — | 27 | 62 | 22 | 18 | — | 12 | 6 | 2 | 14 | 7 | 12 | 12 | 3 | 3 | 3 | 1 |
Swell 3 Height (m) Direction Period (s) | E 9 | — | — | — | — | SE 9 | SSE 10 | — | SSE 10 | ESE 9 | SE 9 | SSE 10 | SE 9 | S 9 | S 8 | — | E 8 | — | — |
| kJ | 6 | — | — | — | — | 14 | 64 | — | 38 | 9 | 3 | 10 | 12 | 6 | 13 | — | 1 | — | — |
Wind waves Height (m) Direction Period (s) | SSE 5 | SE 5 | SSE 7 | ENE 5 | ENE 6 | NNE 4 | NNE 5 | NE 5 | — | — | — | SW 3 | SSW 4 | SSW 7 | S 3 | S 4 | S 7 | — | NW 2 |
| kJ | 109 | 129 | 401 | 22 | 36 | 21 | 48 | 32 | — | — | — | 2 | 12 | 49 | 5 | 33 | 73 | — | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 482 | 178 | 81 | 0 | 0 | 0 | 0 | 24 | 24 | 24 | 24 | 25 | 24 | 1257 | 1541 | 1008 | 221 | 340 | 25 |
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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