Surf Forecasts:
Block Island surf forecast from 11 Jul 2026:
- Most powerful swell: Wednesday 15 Jul, 2AM (local time) - 7ft (2.1m), 7s period, SW swell with 360 kJ wave energy.
Best Forecast Surf Conditions for Block Island this week:
The most powerful waves expected at Block Island in the next 16 days are 2.1m 7s and forecast to arrive on Wednesday (Jul 15) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 3s period and expected on Saturday (Jul 18) at 2AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Wed 15th Jul) | 7ft (2.1m) 7s |
Table - best surf conditions forecast for Block Island over the next 16 days.
Hey, Rusty here. Gotta be straight—this block is pretty grim. Block Island is a point break that *rarely breaks*, and we’re staring at a 16-day forecast with nothing usable until the very end. So you’ve got a big dry spell from today (July 11) all the way to the afternoon of July 24. Kite surfers might find a few windy days, but for paddle surfing, it’s a tough stretch.
First week is a total dud. From Saturday July 11 through Sunday July 19, the swell is tiny—heights from 0.7ft down to 0.1ft, periods short at 4 to 7 seconds, and combined energy readings are weak (74 down to 4). Winds are cross or cross-onshore (15-30 mph), so it’s choppy, lumpy, and no fun. Water temp is about normal for July.
Second week, still rough. From Monday July 20 to Thursday July 23, the swell starts to build (up to 10ft on July 21 afternoon), but the wind is cross or cross-on (15-30 mph), keeping the surface messy. The energy gets strong—1086 on July 21 afternoon, 375 on July 22 morning—but with cross-on wind and chop, it’s not clean. The waves aren’t coming together.
The one standout is Friday July 24 afternoon. Swell at 7ft from the SSW with a 9-second period—that’s real groundswell, and the combined energy is 1145 (very strong). Wind is from the NNE at 9 mph, which is a clean cross-off. For Block Island, that’s as good as it gets. At 7ft, that’s expert territory; beginners should sit it out. Crowds are *often* here, so be ready for company.
The days after (July 25 and 26) still have size (8ft and 7ft) but the wind turns cross or on, and conditions drop off.
Bottom line: one session—Friday afternoon July 24—is your only real shot. The rest is a bust. Keep hoping, but for now, it’s a waiting game.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Fri night, min 19°C on Sat night). Winds increasing (calm on Fri night, fresh winds from the SSW by Mon afternoon). | Days 5-7 Weather SummaryMostly dry. Warm (max 33°C on Wed afternoon, min 21°C on Mon night). Winds decreasing (fresh winds from the SW on Tue afternoon, light winds from the NW by Thu morning). | ||||||||||||||||||||
Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Fri 17 | |||||||||||||||
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) | SSW 6 | SSW 7 | SSW 7 | S 7 | S 7 | S 7 | SE 10 | SSW 7 | SSW 4 | SW 5 | SW 5 | SW 6 | SW 7 | SW 6 | SW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | S 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 55 | 49 | 36 | 22 | 25 | 24 | 16 | 18 | 17 | 79 | 87 | 287 | 360 | 161 | 128 | 44 | 42 | 45 | 35 | 20 | 28 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross | cross-on | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-off | cross-off | cross-off |
High Tide | 5:15AM0.75m | 5:51PM1.08m | 6:19AM0.80m | 6:53PM1.12m | 7:18AM0.85m | 7:50PM1.15m | 8:15AM0.91m | 8:43PM1.14m | 9:10AM0.96m | 9:34PM1.10m | 10:03AM0.99m | 10:23PM1.05m | 10:56AM1.00m | ||||||||
Low Tide | 11:48PM0.07m | 10:52AM-0.01m | 00:47AM0.02m | 11:58AM-0.05m | 1:41AM-0.02m | 1:02PM-0.08m | 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 | |||||||
 | | |  |  | |  | | | | | | | | | | | | | | | |
 | — | 5:22 | — | — | 5:24 | — | — | 5:24 | — | — | 5:24 | — | — | 5:26 | — | — | 5:26 | — | — | 5:26 | — |
 | 8:20 | — | 8:19 | — | — | 8:19 | — | — | 8:17 | — | — | 8:17 | — | — | 8:16 | — | — | 8:16 | — | — | 8:15 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 22 | 23 | 22 | 22 | 22 | 20 | 20 | 21 | 22 | 24 | 26 | 26 | 28 | 33 | 32 | 25 | 27 | 28 | 23 | 27 |
Feels °C | 27 | 19 | 20 | 19 | 20 | 19 | 17 | 19 | 16 | 18 | 21 | 22 | 25 | 28 | 29 | 28 | 23 | 25 | 28 | 19 | 23 |
Swell 1 Height (m) Direction Period (s) | SSW 6 | SSW 7 | SSW 7 | S 7 | S 7 | S 7 | E 4 | SSW 7 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SSW 6 | SSW 6 | SE 9 | SSW 6 | SSW 6 | S 6 |
| kJ | 55 | 49 | 36 | 22 | 25 | 24 | 6 | 18 | 13 | 21 | 12 | 21 | 13 | 12 | 12 | 44 | 42 | 3 | 35 | 20 | 28 |
Swell 2 Height (m) Direction Period (s) | E 8 | SE 9 | SE 9 | SE 10 | SE 10 | SE 10 | SSW 7 | ESE 5 | — | — | ESE 7 | — | — | S 17 | S 17 | SE 9 | SE 9 | S 15 | SE 9 | ENE 3 | SE 8 |
| kJ | 10 | 14 | 14 | 14 | 14 | 14 | 16 | 4 | — | — | 9 | — | — | 6 | 5 | 3 | 3 | 4 | 3 | 1 | 3 |
Swell 3 Height (m) Direction Period (s) | SE 10 | E 7 | E 7 | E 7 | E 7 | E 7 | SE 10 | SE 9 | — | E 8 | E 8 | — | — | S 10 | — | S 17 | S 15 | — | SE 15 | SE 8 | SE 14 |
| kJ | 14 | 4 | 4 | 1 | 1 | 1 | 14 | 14 | — | 1 | 1 | — | — | 2 | — | 5 | 4 | — | 9 | 3 | 8 |
Wind waves Height (m) Direction Period (s) | — | ENE 4 | E 4 | E 4 | ENE 4 | E 4 | — | — | SSW 4 | SW 5 | SW 5 | SW 6 | SW 7 | SW 6 | SW 6 | NNW 3 | — | SSW 6 | NNE 2 | NNW 2 | WSW 3 |
| kJ | — | 7 | 6 | 7 | 11 | 11 | — | — | 17 | 79 | 87 | 287 | 360 | 161 | 128 | 3 | — | 45 | 1 | 1 | 9 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 29 | 25 | 642 | 642 | 645 | 767 | 769 | 846 | 207 | 249 | 445 | 226 | 26 | 24 | 24 | 49 | 24 | 230 | 634 | 608 | 642 |
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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