Surf Forecasts:
Block Island surf forecast from 25 Jul 2026:
- Best quality surf: Thursday 30 Jul, 2AM (local time) - 8ft (2.4m), 7s period, E swell with glassy winds.
- Most powerful swell: Thursday 30 Jul, 2AM (local time) - 8ft (2.4m), 7s period, E swell with 595 kJ wave energy.
- Next surfable swell (1★+): Thursday 30 Jul, 2AM (local time) - 8ft (2.4m), 7s period with E 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 2AM. The primary swell is predicted to be 2.4m and 7s period with a secondary swell of 1.2m and 8s. 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 2.4m 7s and forecast to arrive on Thursday (Jul 30) at 2AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 6s period and expected on Thursday (Jul 30) at 11AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Thu 30th Jul) | 8ft (2.4m) 7s |
| Best Surf | 2AM (Thu 30th Jul) | 8ft (2.4m) 7s |
| Most Powerful | 2AM (Thu 30th Jul) | 8ft (2.4m) 7s |
Table - best surf conditions forecast for Block Island over the next 16 days.
The Lowdown
Alright, Rusty here. Let's break down the next couple of weeks.
I've got to be honest, it's a pretty flat and ugly stretch ahead. We're looking at a solid 16-day window with barely a whisper of decent surf. The first few days, from Saturday the 25th through the 5th of August, are a total write-off. The energy is weak, the winds are a mess, and the wave call is "poor surf conditions". The combined swell energy is barely hitting 100 on the best of those days, and that's just not enough to get excited about.
There's a little flicker of hope around Thursday the 30th of July. The swell picks up a touch to 4.6ft from the SSE, and the wind goes offshore out of the NW on the morning, with a fresh offshore breeze making things clean. The energy jumps up too (381). But it's still tagged as "marginal" – the direction is a bit off, and the period is short (8 seconds). It's a peaky, hard-to-read wave. Not a standout, but if you're desperate, that Thursday morning, with the wind out of the northwest, is your best bet. The water temp is about average for the time of year.
Then we get another almost-day on Monday the 3rd of August. Swell is 4.6ft from the S, with a longer period of 9 seconds and a solid energy reading (306). But the wind is a cross-shore or cross-onshore all day, messing up the surface. It's a beach-and-reef setup, and with that much wind, it might be more interesting for the kite surfers than the paddle crew.
Honestly, for Block Island, this is a blank run. The spot rarely breaks as it is, and when it does, we need a clean swell from the SE. We're not getting that. The forecasts can change, and it tends not to stay this poor for long, but for now, I'd leave the boards at home and maybe go for a long walk on the beach.
Short Range ForecastMostly dry. Warm (max 21°C on Fri night, min 16°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 24mm), heaviest during Wed morning. Warm (max 22°C on Tue afternoon, min 18°C on Thu morning). Mainly fresh winds. | ||||||||||||||||||
Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | ||||||||||||||
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 7 | ESE 7 | ESE 7 | ESE 7 | E 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | SE 8 | SE 8 | SE 8 | SE 8 | E 5 | E 6 | E 7 | S 8 | SSE 9 | S 10 |
Wave Graph  | |||||||||||||||||||
 kJ | 65 | 99 | 129 | 140 | 134 | 97 | 97 | 59 | 64 | 57 | 49 | 45 | 24 | 102 | 346 | 595 | 277 | 340 | 262 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross-off | cross-off | cross-on | cross-off | glassy | cross-on | cross-on | on | on | on | cross-on | cross-on | glassy | off | cross-off | cross-off |
High Tide | 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 | 10 | 7 | 3 | 1 | — | — |
Temp °C | 21 | 19 | 20 | 20 | 19 | 21 | 20 | 17 | 20 | 21 | 21 | 22 | 22 | 21 | 21 | 21 | 19 | 22 | 21 |
Feels °C | 18 | 15 | 17 | 16 | 15 | 18 | 18 | 17 | 18 | 21 | 20 | 21 | 20 | 18 | 18 | 21 | 17 | 21 | 19 |
Swell 1 Height (m) Direction Period (s) | SE 7 | ESE 7 | SW 6 | ESE 7 | S 6 | S 7 | ESE 7 | ESE 7 | ESE 7 | SE 8 | SE 8 | SE 8 | S 4 | SSE 7 | S 7 | S 8 | S 8 | SSE 9 | S 10 |
| kJ | 65 | 99 | 1 | 140 | 3 | 8 | 97 | 59 | 64 | 57 | 49 | 45 | 15 | 37 | 67 | 173 | 277 | 340 | 262 |
Swell 2 Height (m) Direction Period (s) | SSW 6 | SSW 6 | — | S 5 | S 6 | — | SSW 6 | SSW 6 | S 5 | E 7 | E 6 | E 6 | SE 8 | SW 6 | SW 8 | — | E 7 | E 7 | NE 5 |
| kJ | 8 | 3 | — | 1 | 3 | — | 8 | 3 | 1 | 14 | 7 | 6 | 24 | 8 | 10 | — | 104 | 23 | 16 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | WSW 3 | WSW 4 | SSE 7 | — | S 12 | — | — | — | ENE 7 |
| kJ | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 9 | — | 3 | — | — | — | 9 |
Wind waves Height (m) Direction Period (s) | — | — | ESE 7 | — | E 7 | ESE 7 | — | — | — | — | SE 2 | SSE 4 | E 4 | E 5 | E 6 | E 7 | NE 6 | NNE 5 | NNW 4 |
| kJ | — | — | 129 | — | 134 | 97 | — | — | — | — | 1 | 10 | 6 | 102 | 346 | 595 | 241 | 94 | 8 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 25 | 634 | 749 | 24 | 24 | 1411 | 24 | 82 | 24 | 155 | 1541 | 344 | 445 | 217 | 141 | 0 | 26 | 24 | 25 |
Best forecast wave conditions in Rhode Island | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Block Island surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
Nearest