Surf Forecasts:
Block Island surf forecast from 25 Jul 2026:
- Best quality surf: Wednesday 29 Jul, 2PM (local time) - 8ft (2.5m), 7s period, E swell with offshore winds.
- Most powerful swell: Wednesday 29 Jul, 8PM (local time) - 8ft (2.5m), 7s period, ENE swell with 610 kJ wave energy.
- Next surfable swell (1★+): Wednesday 29 Jul, 11AM (local time) - 7.5ft (2.3m), 6s period with ESE 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 11AM. The primary swell is predicted to be 2.3m and 6s period with a secondary swell of 0.1m and 9s. 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 2.5m 7s and forecast to arrive on Wednesday (Jul 29) at 8PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 6s period and expected on Thursday (Jul 30) at 11AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Wed 29th Jul) | 7.5ft (2.3m) 6s |
| Best Surf | 2PM (Wed 29th Jul) | 8ft (2.5m) 7s |
| Most Powerful | 8PM (Wed 29th Jul) | 8ft (2.5m) 7s |
Table - best surf conditions forecast for Block Island over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's look at what Block Island has cookin' for us over the next couple of weeks.
Honestly, the next week is pretty grim. We’re lookin' at a long dry spell with nothing worth paddling out for, running from now all the way through to the morning of Tuesday the 29th of July. A lot of small, weak, and choppy conditions with onshore or cross-shore winds messin' up any chance of a clean wave. The water’s runnin' a bit colder than usual for this time of year, sittin' at 68°F, so you’ll feel that bite.
Finally, things wake up on Wednesday the 29th. That morning we get a clean 8ft swell out of the ESE with a stiff offshore from the NNW. The combined energy is moderate (407), and that offshore wind will have the faces lookin' glassy. It’s a solid size, so intermediate surfers will be stoked, but the short period (6 seconds) means it might be a little crumbly and won't have that punchy groundswell feel. By Wednesday afternoon, it jumps to 8ft with a NW offshore, and the energy cranks up to a strong 862. That’s the standout of the whole forecast. It's big enough to shut out beginners, but for the experienced crew on a point break like this, it’s gonna be a full-on session. Just remember, it rarely breaks here, so when it does, the crowds are likely to show up.
Thursday the 30th holds some cleaner fun-size waves. Morning brings a 4ft S swell with a light cross-offshore, and the afternoon is even better with a 4ft SSE groundswell (9 second period) and a clean light offshore from the NNW. That afternoon window is a beauty for a log or a fish. After that, it goes flat and mushy again until the morning of Tuesday the 4th of August, when a 5ft S swell shows up with a glassy NE wind. It’s a decent pick for a mid-week paddle, but not a standout. The 6th of August has some size again (7ft to 7ft) but the period is short and the conditions are only marginal, so don’t get your hopes up too high for that one.
So, to sum it up: the best bet on the whole board is Wednesday the 29th of July, afternoon specifically, for some solid, offshore perfection. The Thursday afternoon session on the 30th is a close second for cleaner, smaller stuff.
Stay salty,
Rusty
Short Range ForecastMostly dry. Warm (max 22°C on Fri afternoon, min 16°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 21mm), heaviest during Tue night. Warm (max 23°C on Wed afternoon, min 19°C on Mon afternoon). Winds decreasing (fresh winds from the SSE on Tue night, light winds from the NW by Wed night). | |||||||||||||||||||
Fri 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | ||||||||||||||
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) | SSW 7 | SE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 8 | ESE 7 | SE 7 | SE 7 | SE 7 | SE 8 | S 7 | SSE 7 | ESE 6 | ENE 7 | NE 7 | S 9 | SSE 10 | S 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 26 | 65 | 91 | 129 | 140 | 96 | 102 | 97 | 54 | 44 | 44 | 34 | 44 | 37 | 405 | 596 | 516 | 215 | 245 | 207 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross | cross | cross-on | cross-off | cross-off | cross | cross-off | cross | cross-on | cross-on | on | on | on | off | off | off | cross-off | off | off |
High Tide | 5:29PM0.84m | 5:46AM0.63m | 6:20PM0.87m | 6:36AM0.66m | 7:04PM0.89m | 7:22AM0.70m | 7:44PM0.91m | 8:03AM0.75m | 8:20PM0.92m | 8:42AM0.79m | 8:52PM0.93m | 9:17AM0.82m | 9:22PM0.93m | |||||||
Low Tide | 00:03AM0.20m | 11:33AM0.19m | 00:49AM0.18m | 12:20PM0.17m | 1:30AM0.14m | 1:04PM0.14m | 2:08AM0.11m | 1:45PM0.12m | 2:43AM0.07m | 2:24PM0.11m | 3:15AM0.05m | 3:01PM0.11m | 3:42AM0.04m | |||||||
 |  | | | | | | | |  | | |  |  | |  |  | | | | |
 | — | — | 5:33 | — | — | 5:35 | — | — | 5:35 | — | — | 5:37 | — | — | 5:37 | — | — | 5:39 | — | — |
 | 8:10 | — | — | 8:09 | — | — | 8:08 | — | — | 8:07 | — | — | 8:07 | — | — | 8:06 | — | — | 8:05 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 13 | 2 | 2 | 1 | — | — | — |
Temp °C | 22 | 20 | 20 | 20 | 20 | 20 | 21 | 21 | 18 | 20 | 21 | 22 | 22 | 21 | 21 | 23 | 22 | 21 | 24 | 24 |
Feels °C | 21 | 17 | 16 | 17 | 17 | 16 | 17 | 17 | 17 | 17 | 19 | 21 | 21 | 20 | 22 | 23 | 22 | 21 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | SSW 7 | SE 7 | ESE 7 | SW 6 | ESE 7 | ESE 7 | S 7 | ESE 7 | SE 7 | SE 7 | SE 7 | SE 8 | SE 8 | SSE 7 | S 9 | S 8 | SSE 10 | S 9 | SSE 10 | S 9 |
| kJ | 26 | 65 | 91 | 1 | 140 | 96 | 8 | 97 | 54 | 44 | 44 | 34 | 34 | 37 | 2 | 266 | 235 | 215 | 245 | 207 |
Swell 2 Height (m) Direction Period (s) | SE 6 | SSW 6 | SSW 6 | — | S 5 | S 6 | — | SSW 6 | E 6 | E 7 | E 6 | SSE 7 | E 6 | SSW 5 | — | — | SSW 8 | — | ENE 6 | ENE 7 |
| kJ | 18 | 8 | 3 | — | 1 | 3 | — | 7 | 19 | 21 | 12 | 10 | 7 | 14 | — | — | 99 | — | 45 | 17 |
Swell 3 Height (m) Direction Period (s) | SE 8 | — | — | — | — | — | — | — | SW 6 | SW 6 | E 6 | E 6 | WSW 4 | E 8 | — | — | — | — | — | — |
| kJ | 23 | — | — | — | — | — | — | — | 1 | 1 | 12 | 7 | 2 | 6 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | ESE 7 | — | NE 3 | ESE 8 | — | — | — | SW 2 | SSW 6 | S 7 | SE 4 | ESE 6 | ENE 7 | NE 7 | NE 6 | NNE 6 | — |
| kJ | — | — | — | 129 | — | 6 | 102 | — | — | — | 1 | 23 | 44 | 16 | 405 | 596 | 516 | 237 | 93 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 702 | 25 | 634 | 680 | 24 | 25 | 1496 | 24 | 82 | 1696 | 152 | 634 | 1808 | 163 | 0 | 0 | 0 | 0 | 0 | 0 |
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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