Surf Forecasts:
Block Island surf forecast from 24 Jul 2026:
- Best quality surf: Thursday 30 Jul, 11AM (local time) - 2.5ft (0.8m), 10s period, SSE swell with glassy winds.
- Most powerful swell: Thursday 30 Jul, 2PM (local time) - 4.5ft (1.4m), 10s period, SSE swell with 385 kJ wave energy.
- Next surfable swell (1★+): Thursday 30 Jul, 11AM (local time) - 2.5ft (0.8m), 10s 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 Thursday (Jul 30) at 11AM. The primary swell is predicted to be 0.8m and 10s period with a secondary swell of 0.7m and 8s. Another secondary swell of 0.7m and 4s 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 1.4m 10s and forecast to arrive on Thursday (Jul 30) at 2PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 5s period and expected on Sunday (Jul 26) at 11AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Thu 30th Jul) | 2.5ft (0.8m) 10s |
| Best Surf | 11AM (Thu 30th Jul) | 2.5ft (0.8m) 10s |
| Most Powerful | 2PM (Thu 30th Jul) | 4.5ft (1.4m) 10s |
Table - best surf conditions forecast for Block Island over the next 16 days.
The Lowdown
Alright, Rusty here again, giving you the same outlook but in feet and miles per hour.
Right now and for the next week or so, we’re looking at a bleak stretch for Block Island. The swell is small and weak – most combined energy readings are under 200, which is weak to moderate – and the period is short, just 6 to 8 seconds. The wind is either onshore or cross-onshore, chopping the surface up. There are a few glassy moments, like Monday morning (July 27) and Thursday afternoon (July 30), but the wave height is only 2 to 3 feet – not enough to get excited about.
Your best bet is Thursday, July 30. The morning goes glassy with a light northeast wind, a 3ft southeast swell, and a 10-second period. Combined energy hits 213 (moderate). By the afternoon, the wind switches to a clean offshore from the NNW at 6 mph, the swell holds at 4-5ft from the southeast, still 10 seconds, and the energy jumps to 369 (moderate-strong). This is the real deal. The break is a point break that "rarely breaks," so this is a special event. The water temp is about 67°F, which is a couple of degrees cooler than average for July – not too bad.
For an intermediate or better, Thursday, July 30 is the only day worth paddling out. Expect company – crowds are listed as "often."
Beyond that, it’s back to junk. Saturday, August 8, pushes up to 5-6ft from the southwest, but the period is a dismal 6 seconds with onshore wind – that’s just a messy closeout. On a beach setup, that’s more for the kite crew than the paddle crew.
Bottom line: a long dry spell until that standout day on July 30. That’s the only one to circle.
- Rusty
Short Range ForecastMostly dry. Warm (max 21°C on Fri morning, min 16°C on Sat night). Winds increasing (light winds from the ESE on Fri morning, fresh winds from the ENE by Sun afternoon). | Days 4-6 Weather SummaryModerate rain (total 12mm), heaviest on Wed night. Warm (max 23°C on Wed afternoon, min 18°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||
Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | |||||||||||||||
AM | 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 | SSW 7 | SE 7 | ESE 7 | ESE 7 | ESE 7 | SE 8 | SE 8 | SE 8 | SE 8 | SE 7 | SE 7 | SSE 8 | S 7 | S 6 | S 7 | S 6 | S 6 | SSE 10 | SSE 10 | S 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 37 | 26 | 77 | 113 | 125 | 124 | 61 | 60 | 57 | 45 | 44 | 54 | 103 | 183 | 75 | 104 | 100 | 27 | 135 | 348 | 270 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross | cross | cross-on | cross-off | cross-off | cross | cross-off | glassy | cross-on | cross-on | on | on | on | on | cross-on | cross-on | glassy | off | cross-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 | 10:41AM0.20m | 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 | — | — | 5:33 | — | — | 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 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 11 | 3 | — | — |
Temp °C | 21 | 21 | 20 | 19 | 20 | 20 | 19 | 21 | 20 | 19 | 21 | 21 | 21 | 22 | 22 | 22 | 23 | 22 | 21 | 22 | 21 |
Feels °C | 20 | 19 | 17 | 16 | 17 | 17 | 17 | 20 | 18 | 21 | 22 | 21 | 21 | 22 | 22 | 22 | 24 | 25 | 24 | 23 | 21 |
Swell 1 Height (m) Direction Period (s) | SE 6 | SE 6 | SE 7 | SSW 6 | SW 6 | ESE 7 | SE 8 | SE 8 | SE 8 | SE 8 | SE 7 | SE 7 | SSW 8 | E 6 | SSE 7 | S 7 | S 6 | S 6 | SSE 10 | SSE 10 | S 9 |
| kJ | 34 | 18 | 77 | 3 | 1 | 124 | 61 | 60 | 57 | 45 | 44 | 54 | 12 | 3 | 34 | 104 | 100 | 27 | 135 | 348 | 270 |
Swell 2 Height (m) Direction Period (s) | SSW 7 | SSW 7 | SSW 6 | — | — | S 6 | — | SSW 6 | ENE 5 | ENE 5 | ENE 5 | E 5 | E 6 | E 9 | E 8 | E 6 | E 6 | SE 8 | S 8 | — | SE 10 |
| kJ | 37 | 26 | 8 | — | — | 1 | — | 4 | 14 | 5 | 5 | 2 | 3 | 6 | 5 | 3 | 2 | 10 | 60 | — | 4 |
Swell 3 Height (m) Direction Period (s) | SSE 9 | SE 8 | — | — | — | — | — | — | SSW 6 | SW 5 | S 6 | S 6 | WSW 4 | — | E 6 | E 8 | E 8 | SE 7 | — | — | — |
| kJ | 8 | 23 | — | — | — | — | — | — | 3 | 1 | 1 | 1 | 1 | — | 3 | 5 | 1 | 7 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | ESE 7 | ESE 7 | — | ENE 5 | ENE 5 | — | — | — | — | SSE 8 | S 7 | S 6 | SSW 6 | — | E 4 | E 4 | E 5 | E 5 |
| kJ | — | — | — | 113 | 125 | — | 29 | 20 | — | — | — | — | 103 | 183 | 75 | 36 | — | 10 | 18 | 21 | 34 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 25 | 737 | 25 | 24 | 912 | 24 | 24 | 1687 | 195 | 29 | 1804 | 159 | 688 | 195 | 24 | 24 | 24 | 24 | 0 | 0 | 24 |
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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