Surf Forecasts:
Block Island surf forecast from 14 Jul 2026:
- Best quality surf: Sunday 19 Jul, 11PM (local time) - 7ft (2.2m), 8s period, SSW swell with offshore winds.
- Most powerful swell: Monday 20 Jul, 2AM (local time) - 7ft (2.1m), 9s period, SSW swell with 647 kJ wave energy.
- Next surfable swell (1★+): Sunday 19 Jul, 11PM (local time) - 7ft (2.2m), 8s period with SSW 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 11PM. The primary swell is predicted to be 2.2m and 8s period with a secondary swell of 0.1m and 12s. 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 2.1m 9s and forecast to arrive on Monday (Jul 20) at 2AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Sunday (Jul 19) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Sun 19th Jul) | 7ft (2.2m) 8s |
| Best Surf | 11PM (Sun 19th Jul) | 7ft (2.2m) 8s |
| Most Powerful | 2AM (Mon 20th Jul) | 7ft (2.1m) 9s |
Table - best surf conditions forecast for Block Island over the next 16 days.
The Lowdown
Alright, let’s break this down for you. Block Island is looking like a tough stretch for the next 16 days. The first week plus is a total write-off, with a long gap of poor conditions starting from the 14th all the way through the 20th.
The wind is either howling, blowing onshore, or just making a mess of things. The surf is mostly short-period, wind-slop – not worth paddling out for. The water is about normal for the time of year.
Your one real shot comes on the morning of Monday, July 21st. We get a clean 4ft swell from the South, with a period of 8 seconds, and a light 6 mph offshore wind from the ENE. That’s the only time it’ll look clean. But this is a point break that rarely breaks, and when it does, it’s often crowded. So, expect a crowd.
After that, it’s back to the struggle. The 22nd and 23rd are onshore and lumpy. The 24th sees a 7ft SSE swell, but it’s short period and cross-onshore – a messy, choppy mess. The 25th and 26th are more of the same: bumpy, short-period slop.
The last few days, from the 27th to the 29th, are still looking poor. The 29th of July morning shows a 7ft S swell with a 28 mph cross-onshore wind – that’s kite-surfing territory, not for a paddle board.
So, there’s one good window on the morning of the 21st. The rest of the forecast is a big ol’ dud. Keep an eye on it, but don’t hold your breath.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Wed afternoon. Warm (max 28°C on Wed afternoon, min 21°C on Mon night). Winds decreasing (strong winds from the SW on Tue night, light winds from the WSW by Wed afternoon). | Days 5-7 Weather SummaryHeavy rain (total 21mm), heaviest during Sat night. Warm (max 28°C on Thu night, min 20°C on Sat afternoon). Winds increasing (calm on Fri morning, strong winds from the SW by Sat night). | ||||||||||||||||||||
Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Mon 20 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SW 4 | SW 5 | SW 6 | SW 7 | SW 7 | SW 6 | SSW 6 | SSW 6 | SW 6 | SSW 6 | SSW 6 | SSW 5 | SSW 6 | S 6 | SSW 4 | S 5 | SSW 7 | SSW 7 | SSW 9 | S 9 | S 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 45 | 84 | 277 | 645 | 195 | 136 | 65 | 62 | 73 | 59 | 28 | 33 | 30 | 15 | 10 | 109 | 332 | 472 | 647 | 421 | 430 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross | cross | cross | off | cross-off | cross | cross-off | glassy | cross-on | cross | cross-on | on | cross | cross | cross-off | off | cross | cross |
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 | ||||||||
Low Tide | 2:33AM-0.05m | 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 | ||||||||
 | |  |  | |  |  | | | | | | | |  |  | | | | | | |
 | — | 5:24 | — | — | 5:26 | — | — | 5:26 | — | — | 5:26 | — | — | 5:28 | — | — | 5:28 | — | — | 5:30 | — |
 | 8:17 | — | 8:17 | — | — | 8:16 | — | — | 8:16 | — | — | 8:15 | — | — | 8:15 | — | — | 8:15 | — | — | 8:14 |
mm | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | 5 | 16 | — | — | — | — | — |
Temp °C | 22 | 22 | 23 | 24 | 27 | 28 | 28 | 27 | 28 | 28 | 23 | 26 | 26 | 24 | 21 | 23 | 24 | 26 | 25 | 21 | 23 |
Feels °C | 18 | 18 | 18 | 20 | 26 | 26 | 28 | 26 | 24 | 25 | 25 | 23 | 23 | 23 | 20 | 19 | 22 | 22 | 23 | 20 | 20 |
Swell 1 Height (m) Direction Period (s) | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SSW 6 | SSW 6 | SE 9 | SSW 6 | SSW 6 | SE 8 | SE 8 | S 6 | SE 8 | SE 13 | SE 13 | SE 12 | SSW 9 | S 9 | S 9 |
| kJ | 13 | 13 | 13 | 13 | 12 | 12 | 65 | 62 | 3 | 59 | 28 | 3 | 3 | 15 | 3 | 7 | 7 | 6 | 647 | 421 | 430 |
Swell 2 Height (m) Direction Period (s) | E 8 | E 7 | E 7 | — | S 17 | S 17 | ESE 9 | ESE 9 | S 15 | SE 9 | ENE 4 | E 3 | SE 14 | SE 8 | SE 13 | SE 8 | — | — | SE 12 | SE 12 | E 12 |
| kJ | 1 | 1 | 1 | — | 6 | 5 | 8 | 7 | 4 | 3 | 5 | 1 | 8 | 3 | 7 | 3 | — | — | 6 | 6 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | S 17 | S 15 | — | SE 15 | SE 8 | SE 14 | E 8 | SE 14 | E 8 | E 8 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | 5 | 4 | — | 9 | 3 | 8 | 1 | 7 | 1 | 1 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 4 | SW 5 | SW 6 | SW 7 | SW 7 | SW 6 | NW 3 | — | SW 6 | NW 3 | — | SSW 5 | SSW 6 | — | SSW 4 | S 5 | SSW 7 | SSW 7 | NW 4 | N 4 | — |
| kJ | 45 | 84 | 277 | 645 | 195 | 136 | 5 | — | 73 | 2 | — | 33 | 30 | — | 10 | 109 | 332 | 472 | 6 | 8 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 847 | 482 | 1239 | 204 | 24 | 24 | 49 | 24 | 24 | 24 | 642 | 645 | 26 | 634 | 2912 | 398 | 204 | 29 | 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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