Surf Forecasts:
Block Island surf forecast from 14 Jul 2026:
- Best quality surf: Sunday 19 Jul, 8PM (local time) - 4.5ft (1.3m), 8s period, S swell with cross-offshore winds.
- Most powerful swell: Tuesday 14 Jul, 11PM (local time) - 8ft (2.5m), 7s period, SW swell with 556 kJ wave energy.
- Next surfable swell (1★+): Sunday 19 Jul, 8PM (local time) - 4.5ft (1.3m), 8s period with S 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 Sunday (Jul 19) at 8PM. The primary swell is predicted to be 1.3m and 8s period with a secondary swell of 0.4m and 5s. 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 2.5m 7s and forecast to arrive on Tuesday (Jul 14) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Sunday (Jul 19) at 11AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sun 19th Jul) | 4.5ft (1.3m) 8s |
| Best Surf | 8PM (Sun 19th Jul) | 4.5ft (1.3m) 8s |
| Most Powerful | 11PM (Tue 14th Jul) | 8ft (2.5m) 7s |
Table - best surf conditions forecast for Block Island over the next 16 days.
The Lowdown
Alright, folks, Rusty here again. Let's break this down for Block Island. It’s a rough start, plain and simple.
We’re staring down a long dry spell of poor conditions right from the beginning. The wind is either cross or onshore, and the swell is just not cooperating. You’re looking at a gap of more than a week with no real surf to speak of, all the way up to the morning of July 20th.
Your first real chance comes on Monday, July 20th in the morning. The wind goes glassy, and we’ve got a clean 4ft S swell with a period of 8 seconds. The combined energy is moderate at 238. This is your standout session, a rare, clean moment for a spot that *rarely breaks* like this. It’ll be crowded, no doubt, but it’s the best on offer.
Things get messy again until Wednesday, July 22nd. That morning, the swell jumps to 6ft from the S with a longer 9-second period, pushing a solid 586 combined energy. The wind is cross-off from the WNW, keeping it clean. At 6ft, this is for the more experienced crew. The next morning, Thursday, July 23rd, is another glassy moment with a 5ft S swell, but it’s a bit smaller.
The second week offers a few more chances. Sunday, July 26th morning brings a 4ft SE swell with clean offshore NW wind, but it’s nothing special. Then Monday, July 27th morning has a 6ft SSW swell with light cross-off wind and a combined energy of 329, a decent paddle for the right crew.
Beginners should stick to the July 20th glassy morning. The bigger swells later in the month are for the experts. The water is running a bit colder than normal for the time of year at 67°F.
Keep your eyes on the 20th and 23rd. The rest of the window is a gamble.
Rusty.
Short Range ForecastMostly dry. Warm (max 31°C on Wed night, min 22°C on Tue morning). Winds decreasing (strong winds from the SW on Tue afternoon, light winds from the NW by Thu morning). | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Sat afternoon. Warm (max 28°C on Fri afternoon, min 20°C on Sat afternoon). Winds increasing (calm on Sat night, fresh winds from the WSW by Sun afternoon). | ||||||||||||||||||||
Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||||
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) | SW 5 | SW 6 | SW 7 | SW 7 | SW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 5 | SSW 5 | SSW 5 | SSW 5 | SSW 5 | SE 5 | S 7 | S 8 | S 8 | S 8 | S 8 | S 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 87 | 258 | 554 | 195 | 161 | 61 | 57 | 62 | 30 | 16 | 26 | 26 | 9 | 7 | 76 | 92 | 177 | 234 | 230 | 223 | 198 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross-off | cross | off | cross | cross-on | off | cross | cross | cross | cross-on | on | cross-off | cross | cross | cross-off | glassy | cross-on | cross-on |
High Tide | 8:15AM0.91m | 8:43PM1.14m | 9:10AM0.96m | 9:34PM1.10m | 10:03AM0.99m | 10:23PM1.05m | 10:56AM1.00m | 11:11PM0.97m | 11:49AM0.98m | 00:00AM0.88m | 12:42PM0.95m | 00:50AM0.79m | 1:37PM0.91m | 1:44AM0.71m | |||||||
Low Tide | 2:05PM-0.09m | 3:23AM-0.06m | 3:06PM-0.07m | 4:10AM-0.07m | 4:06PM-0.04m | 4:57AM-0.05m | 5:07PM0.01m | 5:43AM-0.02m | 6:08PM0.07m | 6:28AM0.03m | 7:10PM0.13m | 7:13AM0.09m | 8:13PM0.18m | ||||||||
 |  |  | | |  | | | | | | | |  | | | | | | | | |
 | 5:24 | — | — | 5:26 | — | — | 5:26 | — | — | 5:26 | — | — | 5:28 | — | — | 5:28 | — | — | 5:30 | — | — |
 | — | 8:17 | — | — | 8:16 | — | — | 8:16 | — | — | 8:15 | — | — | 8:15 | — | — | 8:15 | — | — | 8:14 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 | — | — | — | — | — | — | — |
Temp °C | 23 | 23 | 25 | 27 | 29 | 31 | 26 | 26 | 27 | 24 | 28 | 27 | 23 | 20 | 21 | 23 | 24 | 26 | 24 | 25 | 24 |
Feels °C | 20 | 18 | 23 | 25 | 27 | 31 | 25 | 22 | 23 | 23 | 24 | 25 | 23 | 18 | 24 | 22 | 21 | 28 | 25 | 23 | 21 |
Swell 1 Height (m) Direction Period (s) | SE 9 | SE 9 | SE 9 | SE 9 | ESE 9 | SSW 6 | SSW 6 | SE 9 | SSW 6 | SSW 5 | SE 8 | SE 8 | SSW 5 | SSW 5 | SE 13 | S 7 | S 8 | S 8 | S 8 | E 5 | S 8 |
| kJ | 13 | 13 | 13 | 12 | 8 | 61 | 57 | 3 | 30 | 16 | 3 | 3 | 9 | 5 | 7 | 92 | 177 | 234 | 230 | 2 | 198 |
Swell 2 Height (m) Direction Period (s) | E 7 | E 7 | — | S 17 | S 17 | ESE 9 | SE 9 | S 15 | SE 9 | ENE 3 | — | SE 14 | SE 8 | SE 13 | SE 8 | SE 13 | ENE 4 | ENE 4 | E 5 | SE 12 | E 5 |
| kJ | 1 | 1 | — | 6 | 5 | 8 | 3 | 4 | 3 | 1 | — | 8 | 3 | 7 | 3 | 7 | 12 | 4 | 2 | 6 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | S 17 | S 15 | SE 15 | SE 15 | SE 8 | SE 14 | E 9 | SE 13 | SE 13 | SE 8 | — | SE 12 | SE 12 | SE 12 | — | SE 12 |
| kJ | — | — | — | — | — | 5 | 4 | 9 | 9 | 3 | 8 | 1 | 7 | 7 | 3 | — | 6 | 6 | 6 | — | 6 |
Wind waves Height (m) Direction Period (s) | SW 5 | SW 6 | SW 7 | SW 7 | SW 6 | NNW 2 | — | SSW 6 | — | — | SSW 5 | SSW 5 | — | E 3 | SE 5 | NE 4 | — | — | — | S 8 | — |
| kJ | 87 | 258 | 554 | 195 | 161 | 1 | — | 62 | — | — | 26 | 26 | — | 4 | 76 | 25 | — | — | — | 223 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2500 | 1313 | 26 | 24 | 26 | 29 | 24 | 244 | 634 | 642 | 670 | 642 | 634 | 231 | 24 | 26 | 26 | 24 | 0 | 24 | 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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