Surf Forecasts:
Block Island surf forecast from 16 Jul 2026:
- Best quality surf: Monday 20 Jul, 5AM (local time) - 3.5ft (1.1m), 8s period, SSW swell with offshore winds.
- Most powerful swell: Sunday 19 Jul, 8AM (local time) - 7ft (2.2m), 8s period, SW swell with 558 kJ wave energy.
- Next surfable swell (1★+): Monday 20 Jul, 2AM (local time) - 4ft (1.2m), 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 Monday (Jul 20) at 2AM. The primary swell is predicted to be 1.2m 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 2.2m 8s and forecast to arrive on Sunday (Jul 19) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 5s period and expected on Thursday (Jul 23) at 2PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Mon 20th Jul) | 4ft (1.2m) 8s |
| Best Surf | 5AM (Mon 20th Jul) | 3.5ft (1.1m) 8s |
| Most Powerful | 8AM (Sun 19th Jul) | 7ft (2.2m) 8s |
Table - best surf conditions forecast for Block Island over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s talk about what’s on offer for Block Island over the next couple of weeks. I’ll be straight with you – it’s been a bit of a slow start, and we’re looking at a long gap before anything really gets going.
The first few days here are a bust. From Thursday, July 16th right through to Saturday, July 18th, we’ve got poor surf conditions with tiny, weak swell and messy cross-onshore winds. The water’s a bit colder than usual for mid-July, sitting at 68°, a touch over a degree below average. You’re better off staying on the beach with a cold one.
The first real glimmer of hope comes Sunday, July 19th. The swell picks up to a solid 7ft, coming from the SSW with a period of 8 seconds and moderate wave energy (459). That’s a decent size, but it’s a bit much for the groms. The wind turns cross-offshore from the west, which will clean things up nicely. It’s a point break that rarely breaks, so when it does, it’s a special thing. Keep in mind, crowds are often a factor here, so it won’t be just you out there. This is the standout of the whole outlook.
Monday, July 20th the swell drops off a touch to 4ft, but it’s still a bit messy with a light cross-onshore wind. Thursday, July 23rd morning sees a smaller 4ft SSE swell with clean cross-offshore winds from the NE, but it’s only marginal.
Then we get another window on Wednesday, July 22nd. The swell is back up to 7ft from the south with a moderate period of 8 seconds (558). This is a solid, powerful wave, but that size is really only for the experienced crew. The wind is clean cross-offshore from the WNW, so it should be looking good. Again, a rare break and it’s pumping.
The end of the week into the weekend (July 24th-26th) gets a bit more complicated. There’s a 6ft SSE swell on Friday morning, July 24th, with clean cross-offshore winds, but the quality is poor. Then Saturday, July 25th has a smaller 4ft swell with a cross-shore wind, so it’s just okay. Sunday, July 26th sees another big pulse of 7ft SSW swell (867), but it’s onshore and choppy. That’s a lot of power, but it’ll be a mess.
After that, from Monday, July 27th through to the end of the month, it’s mostly small, weak, and unappealing with poor conditions. The last day of the month, July 31st, has a 5ft SSE swell, but it’s lumpy with cross-shore wind.
So, to sum it up: the best bet is Sunday, July 19th for that rare, clean, overhead point break, but be ready for a crowd. Wednesday, July 22nd is the other big one, but only for the experts. Everything else is a bit of a gamble or a hard pass. Keep an eye on the forecasts, it won’t stay this quiet forever.
Rusty.
Short Range ForecastModerate rain (total 14mm), heaviest on Sat afternoon. Warm (max 27°C on Thu night, min 19°C on Sat afternoon). Winds increasing (light winds from the WSW on Fri morning, strong winds from the S by Sat night). | Days 4-6 Weather SummaryHeavy rain (total 33mm), heaviest during Tue night. Warm (max 26°C on Sun afternoon, min 18°C on Sun night). Winds increasing (light winds from the SSW on Mon morning, strong winds from the SW by Tue night). | ||||||||||||||||||||
Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | |||||||||||||||
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 6 | SW 4 | SSW 5 | SSW 5 | SSW 6 | SSW 5 | SSW 5 | SSW 4 | SSW 6 | SSW 8 | SSW 8 | SSW 8 | S 8 | S 8 | S 8 | S 8 | S 7 | S 6 | S 8 | S 8 | S 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 28 | 46 | 34 | 22 | 25 | 17 | 15 | 29 | 266 | 452 | 402 | 183 | 245 | 205 | 157 | 114 | 131 | 194 | 558 | 439 | 401 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | off | cross | cross-on | cross | cross-on | cross-on | cross | cross-off | cross-off | off | cross-on | cross-on | cross-on | on | cross-on | cross | cross-off | cross-off | cross-off |
High Tide | 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 | 2:35PM0.87m | 2:44AM0.66m | 3:35PM0.84m | 3:48AM0.62m | |||||||
Low Tide | 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 | 8:00AM0.14m | 9:16PM0.21m | 8:51AM0.18m | 10:16PM0.22m | ||||||||
 | |  |  | | | |  |  | | | | | |  | |  |  | | | | |
 | 5:26 | — | — | 5:26 | — | — | 5:28 | — | — | 5:28 | — | — | 5:30 | — | — | 5:31 | — | — | 5:31 | — | — |
 | — | 8:16 | — | — | 8:15 | — | — | 8:15 | — | — | 8:15 | — | — | 8:14 | — | — | 8:13 | — | — | 8:12 | — |
mm | — | — | — | — | — | — | — | 7 | 7 | — | — | — | — | — | — | 2 | 2 | 29 | 1 | — | — |
Temp °C | 25 | 26 | 27 | 22 | 24 | 23 | 23 | 23 | 22 | 22 | 26 | 26 | 21 | 22 | 22 | 22 | 24 | 23 | 20 | 24 | 23 |
Feels °C | 23 | 21 | 25 | 20 | 19 | 19 | 22 | 20 | 19 | 21 | 23 | 22 | 20 | 18 | 21 | 20 | 22 | 20 | 15 | 20 | 19 |
Swell 1 Height (m) Direction Period (s) | SSW 6 | SE 9 | SSW 5 | SSW 5 | SE 8 | SE 8 | SE 8 | SE 8 | SE 13 | SE 13 | SSW 8 | SSW 8 | S 8 | S 8 | S 8 | SE 12 | SSE 8 | SE 11 | S 8 | S 8 | S 8 |
| kJ | 28 | 3 | 34 | 22 | 3 | 3 | 3 | 3 | 7 | 7 | 402 | 183 | 245 | 205 | 157 | 6 | 6 | 5 | 558 | 439 | 401 |
Swell 2 Height (m) Direction Period (s) | SE 9 | S 15 | SE 9 | NNE 3 | SE 14 | SE 14 | SE 13 | SE 13 | E 8 | — | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | SE 11 | — | — | — | — |
| kJ | 3 | 4 | 3 | 1 | 8 | 8 | 7 | 7 | 1 | — | 6 | 6 | 6 | 6 | 6 | 6 | 5 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | S 15 | — | SE 15 | SE 8 | — | — | — | — | E 8 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 4 | — | 9 | 3 | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | SW 4 | NW 2 | — | SSW 6 | SSW 5 | SSW 5 | SSW 4 | SSW 6 | SSW 8 | — | NNW 3 | — | — | SSW 3 | S 8 | S 7 | S 6 | — | — | NE 3 |
| kJ | — | 46 | 1 | — | 25 | 17 | 15 | 29 | 266 | 452 | — | 7 | — | — | 4 | 114 | 131 | 194 | — | — | 3 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1812 | 1084 | 49 | 2500 | 634 | 1759 | 645 | 397 | 1482 | 24 | 25 | 0 | 24 | 24 | 24 | 1148 | 1148 | 219 | 25 | 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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