Surf Forecasts:
Block Island surf forecast from 28 Jul 2026:
- Best quality surf: Wednesday 29 Jul, 8PM (local time) - 4.5ft (1.3m), 7s period, SSE swell with cross-offshore winds.
- Most powerful swell: Wednesday 29 Jul, 8AM (local time) - 6ft (1.8m), 7s period, S swell with 285 kJ wave energy.
- Next surfable swell (1★+): Wednesday 29 Jul, 8PM (local time) - 4.5ft (1.3m), 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 1.3m and 7s period with a secondary swell of 0.6m and 7s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Block Island in the next 16 days are 1.8m 7s and forecast to arrive on Wednesday (Jul 29) at 8AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 4s period and expected on Friday (Jul 31) at 11AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Wed 29th Jul) | 4.5ft (1.3m) 7s |
| Best Surf | 8PM (Wed 29th Jul) | 4.5ft (1.3m) 7s |
| Most Powerful | 8AM (Wed 29th Jul) | 6ft (1.8m) 7s |
Table - best surf conditions forecast for Block Island over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s be straight with you about Block Island for the next couple of weeks. I’ve been staring at the charts, and I gotta say, it’s a tough one. We’re looking at a long stretch of pretty flat conditions.
The first real chance of anything surfable doesn't come until Thursday afternoon, July 30th. That window is small, but it’s the best we’ve got. The energy is moderate (213), with a S swell coming in at 4 ft, a period of 8 seconds. The real kicker here is the wind: it’s blowing offshore from the N. That means clean, lined-up waves at Block Island point. For a spot that rarely breaks, this is a moment to be on it. The water temp is about average for this time of year, so no surprises there.
After that Thursday afternoon session, it’s a long, disappointing run. From Friday, July 31st, all the way through to Monday, August 11th, the surf is poor. The swell is tiny, usually under 3 ft, and when it does show a pulse, the wind is mostly cross or onshore, chopping it up. The combined energy barely gets into triple digits, often less than 100 (weak). There’s a few glassy moments early on Tuesday, August 4th, but the swell is only 3 ft with 8 seconds – not enough to get your hopes up. It’s just one of those summers where the ocean’s taking a nap.
If you’re a kite surfer, the afternoon of August 12th looks interesting with 22 mph winds, but for a paddle surfer, it’s a no-go. The setup just isn’t there. For now, focus on that Thursday afternoon if you can, and keep your fingers crossed that the long-range forecasts change. It’s a bleak run, but it never stays like this forever.
- Rusty
Short Range ForecastHeavy rain (total 46mm), heaviest during Tue night. Warm (max 22°C on Mon night, min 20°C on Tue night). Winds decreasing (fresh winds from the SSE on Wed morning, calm by Wed night). | Days 5-7 Weather SummaryMostly dry. Warm (max 21°C on Fri night, min 17°C on Sat morning). Wind will be generally light. | ||||||||||||||||||
Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | ||||||||||||||
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) | SE 8 | SE 8 | S 5 | S 6 | S 7 | SSE 7 | S 8 | SSE 9 | S 8 | S 8 | S 9 | S 8 | S 8 | SSE 9 | S 8 | S 8 | S 7 | S 9 | SSE 10 |
Wave Graph  | |||||||||||||||||||
 kJ | 50 | 46 | 90 | 162 | 226 | 186 | 159 | 270 | 195 | 127 | 154 | 84 | 55 | 132 | 90 | 58 | 39 | 24 | 33 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | on | on | cross | cross | cross | off | off | cross-off | cross-off | cross-off | cross | cross-on | cross-on | on | on | cross-on |
High Tide | 8:03AM0.75m | 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 | |||||||
Low Tide | 2:08AM0.11m | 1:45PM0.12m | 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 | |||||||
 | |  |  |  |  |  | | |  |  | |  | | | | | |  | |
 | — | 5:37 | — | — | 5:37 | — | — | 5:39 | — | — | 5:39 | — | — | 5:41 | — | — | 5:41 | — | — |
 | 8:07 | — | 8:07 | — | — | 8:06 | — | — | 8:05 | — | — | 8:04 | — | — | 8:02 | — | — | 8:01 | — |
mm | — | — | — | 36 | 7 | 1 | 1 | — | 1 | — | — | — | — | — | — | — | — | — | 4 |
Temp °C | 22 | 22 | 22 | 22 | 21 | 20 | 21 | 20 | 21 | 19 | 19 | 20 | 21 | 19 | 20 | 21 | 21 | 21 | 22 |
Feels °C | 21 | 20 | 20 | 20 | 18 | 20 | 22 | 19 | 21 | 17 | 17 | 18 | 21 | 20 | 20 | 22 | 22 | 21 | 22 |
Swell 1 Height (m) Direction Period (s) | SE 8 | SE 8 | E 6 | E 6 | S 7 | SSE 7 | S 8 | SSE 9 | S 8 | S 8 | S 9 | S 8 | S 8 | SSE 9 | S 8 | S 8 | S 7 | SSW 7 | S 7 |
| kJ | 50 | 46 | 3 | 3 | 176 | 186 | 159 | 270 | 195 | 127 | 154 | 84 | 55 | 132 | 90 | 58 | 39 | 16 | 28 |
Swell 2 Height (m) Direction Period (s) | E 6 | E 6 | E 9 | E 8 | — | SW 6 | ENE 5 | ENE 6 | ENE 6 | E 6 | E 6 | SE 9 | SSE 9 | E 6 | ENE 5 | S 10 | S 9 | S 9 | SE 7 |
| kJ | 7 | 7 | 6 | 6 | — | 33 | 15 | 12 | 12 | 7 | 3 | 14 | 29 | 1 | 7 | 17 | 16 | 24 | 19 |
Swell 3 Height (m) Direction Period (s) | S 6 | — | — | E 8 | — | E 8 | ESE 7 | — | SSW 8 | — | — | — | E 6 | — | ESE 9 | ENE 5 | E 5 | SE 7 | SSE 10 |
| kJ | 7 | — | — | 6 | — | 1 | 31 | — | 6 | — | — | — | 3 | — | 8 | 5 | 2 | 12 | 33 |
Wind waves Height (m) Direction Period (s) | SSW 3 | SSW 5 | S 5 | S 6 | S 7 | ENE 4 | — | — | — | N 4 | NNE 4 | NE 5 | ENE 4 | NE 4 | — | — | — | — | — |
| kJ | 4 | 36 | 90 | 162 | 226 | 29 | — | — | — | 13 | 42 | 50 | 13 | 7 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 134 | 634 | 1698 | 216 | 102 | 25 | 24 | 24 | 0 | 24 | 24 | 24 | 24 | 24 | 26 | 24 | 634 | 1148 | 26 |
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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