Surf Forecasts:
Block Island surf forecast from 17 Jul 2026:
- Best quality surf: Sunday 19 Jul, 8PM (local time) - 4.5ft (1.4m), 8s period, SSW swell with offshore winds.
- Most powerful swell: Wednesday 22 Jul, 8PM (local time) - 8ft (2.5m), 9s period, S swell with 1,270 kJ wave energy.
- Next surfable swell (1★+): Sunday 19 Jul, 8PM (local time) - 4.5ft (1.4m), 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 8PM. The primary swell is predicted to be 1.4m 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 2.5m 9s and forecast to arrive on Wednesday (Jul 22) at 8PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Thursday (Jul 23) at 8AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sun 19th Jul) | 4.5ft (1.4m) 8s |
| Best Surf | 8PM (Sun 19th Jul) | 4.5ft (1.4m) 8s |
| Most Powerful | 8PM (Wed 22nd Jul) | 8ft (2.5m) 9s |
Table - best surf conditions forecast for Block Island over the next 16 days.
The Lowdown
Alright, I’m Rusty, and I’ve been watching this stretch of coast for a long time. I gotta be straight with you – this is a tough one. The finder is basically empty for the next 16 days. There’s nothing here that’s really worth paddling out for. It’s a long, quiet spell.
Let’s talk about Block Island (point break). This spot is a sneaky one, but it’s rarely breaks, so you’ve got to be patient. The whole 16-day window is a struggle. We start off with nothing. Friday the 17th and Saturday the 18th are just blown out with onshore wind and tiny, weak swell. The combined wave energy is barely a whisper (13 to 47). It’s just not happening.
Then, Sunday the 19th morning, we finally get a pulse. The swell is 2 ft from the SSW with a period of 8 seconds, and the wind is a clean cross-offshore from the WNW. The wave energy jumps up to 251 (moderate), and the conditions are clean. It’s still just a marginal call, but it’s the best we’ll see. The afternoon stays similar with a little more size at 6 ft and energy at 369, still clean. This is the only window that even looks like it could be worth a look, but it’s not a standout by any means.
After that, it’s back to the doldrums. Monday the 20th through to the end of July is a mixed bag of cross-shore, onshore, and strong winds. We get a couple of days with some size, like Wednesday the 22nd, when the swell hits 8 ft from the south, but it’s accompanied by a strong breeze and the energy is high (712 to 1212). The surf is poor, and with that much wind and chop, it’s more of a kite-surfing setup than a paddle session. The water temperature is about average for this time of year, so no surprises there.
The second week doesn’t offer any relief. From the 23rd to the 1st of August, it’s a series of small, weak swells, mostly under 4 ft, with messy onshore winds and poor conditions. The energy levels are low, often under 200. There’s just no pulse to get excited about.
So, the honest truth is: there’s no good surf on offer in this 16-day window. This is a blank run for the area, and it’s not unusual for this spot when it’s rarely breaking. The only flicker of hope is that Sunday morning session, but it’s a marginal call. Keep your eye on the forecasts, because things can change, but for now, I’d be doing something else with my time.
Rusty
Short Range ForecastModerate rain (total 12mm), heaviest on Sat night. Warm (max 26°C on Thu night, min 20°C on Fri morning). Winds increasing (light winds from the W on Fri morning, near gales from the SW by Sat night). | Days 5-7 Weather SummaryHeavy rain (total 21mm), heaviest during Wed afternoon. Warm (max 26°C on Sun night, min 18°C on Sun night). Winds increasing (light winds from the WSW on Mon morning, strong winds from the SW by Wed morning). | ||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | ||||||||||||||
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 5 | SSW 5 | SSW 6 | SSW 5 | SSW 3 | SSW 5 | SSW 6 | SSW 8 | SSW 8 | SSW 8 | S 8 | S 8 | SSW 8 | S 7 | S 7 | S 5 | S 8 | S 9 | S 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 21 | 9 | 29 | 9 | 9 | 37 | 181 | 244 | 363 | 147 | 165 | 131 | 99 | 70 | 87 | 124 | 712 | 1212 | 822 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-on | cross | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross | cross-on | cross-on | on | cross-on | cross-on | cross | cross-on | off |
High Tide | 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 | 4:57AM-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 | — | — | 5:28 | — | — | 5:28 | — | — | 5:30 | — | — | 5:31 | — | — | 5:31 | — | — |
 | 8:16 | — | 8:15 | — | — | 8:15 | — | — | 8:15 | — | — | 8:14 | — | — | 8:13 | — | — | 8:12 | — |
mm | — | — | — | — | — | 3 | 9 | — | — | — | — | — | — | — | — | 5 | 6 | 10 | — |
Temp °C | 26 | 22 | 25 | 25 | 23 | 23 | 22 | 23 | 26 | 26 | 21 | 21 | 22 | 21 | 24 | 23 | 23 | 24 | 23 |
Feels °C | 24 | 20 | 19 | 20 | 21 | 20 | 16 | 21 | 21 | 22 | 19 | 16 | 18 | 20 | 23 | 20 | 19 | 23 | 19 |
Swell 1 Height (m) Direction Period (s) | SSW 5 | SSW 5 | SE 8 | SSW 5 | SE 8 | SE 8 | SE 13 | SSW 8 | SSW 8 | SSW 8 | S 8 | S 8 | SSW 8 | S 7 | SE 11 | SE 11 | — | S 9 | S 9 |
| kJ | 21 | 9 | 3 | 9 | 3 | 3 | 7 | 244 | 363 | 147 | 165 | 131 | 99 | 70 | 5 | 5 | — | 1212 | 822 |
Swell 2 Height (m) Direction Period (s) | SE 9 | E 3 | SE 14 | SE 8 | SE 13 | SE 13 | E 8 | SE 13 | SE 12 | SE 12 | SE 12 | SE 12 | SE 8 | SE 8 | SSE 8 | SE 11 | — | — | — |
| kJ | 3 | 1 | 8 | 3 | 7 | 7 | 1 | 7 | 6 | 6 | 6 | 6 | 3 | 3 | 6 | 5 | — | — | — |
Swell 3 Height (m) Direction Period (s) | SE 15 | SE 8 | — | SE 14 | — | — | — | — | — | — | SE 12 | — | SE 12 | SE 12 | SE 11 | — | — | — | — |
| kJ | 9 | 3 | — | 8 | — | — | — | — | — | — | 6 | — | 6 | 6 | 5 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 3 | NE 3 | SSW 6 | SW 4 | SSW 3 | SSW 5 | SSW 6 | NW 4 | — | NNW 3 | — | — | — | — | S 7 | S 5 | S 8 | — | NNW 3 |
| kJ | 2 | 1 | 29 | 6 | 9 | 37 | 181 | 15 | — | 6 | — | — | — | — | 87 | 124 | 712 | — | 7 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 634 | 642 | 634 | 642 | 642 | 1541 | 340 | 24 | 24 | 24 | 24 | 24 | 24 | 1148 | 1148 | 1148 | 219 | 131 | 25 |
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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