Surf Forecasts:
Block Island surf forecast from 19 Jul 2026:
- Best quality surf: Wednesday 22 Jul, 11PM (local time) - 7.5ft (2.3m), 9s period, S swell with offshore winds.
- Most powerful swell: Wednesday 22 Jul, 2PM (local time) - 8ft (2.5m), 9s period, S swell with 1,099 kJ wave energy.
- Next surfable swell (1★+): Sunday 19 Jul, 11AM (local time) - 5ft (1.5m), 7s 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 11AM. The primary swell is predicted to be 1.5m and 7s period with a secondary swell of 0.1m and 13s. 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 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Saturday (Jul 25) at 11AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Sun 19th Jul) | 5ft (1.5m) 7s |
| Best Surf | 11PM (Wed 22nd Jul) | 7.5ft (2.3m) 9s |
| Most Powerful | 2PM (Wed 22nd Jul) | 8ft (2.5m) 9s |
Table - best surf conditions forecast for Block Island over the next 16 days.
The Lowdown
Alright folks, Rusty here. We’re taking a long look at the waters around Block Island, and I gotta be straight with you – it’s a tough stretch. For a spot that’s a classic point break that rarely breaks, we’re in for a real test of patience.
The first week is a mixed bag, but the real standout is coming up on Thursday morning, July 23rd. We’ve got a solid 5.6 ft swell rolling in from the S, with a period of 10 seconds giving it some real punch. The combined energy of all swells is a solid (623) – that’s moderate wave energy. The real kicker is the wind: a light offshore from the N at 12 mph. That’s going to clean things up nicely, making for some really well-shaped, clean lines at the point. It’s a bit of a rare event for this spot, so if you can get out there, you’ll be in for a treat. Remember, it’s an intermediate break, so that size is manageable.
The days leading up to it are a grind. Sunday the 19th has a brief shot of 4.9 ft swell from the SSW with a 7-second period, but the wind is howling, and the quality is just not there. The energy is a weak (231) for that morning. The rest of the first week sees small, messy, choppy surf with onshore winds, making it pretty much a washout.
Now, for the second week, things get even more grim. From July 28th onwards, we’re looking at a long, blank run. The swell drops off a cliff, with heights barely scraping 3.3 ft and the wind is just never your friend. A few days see a cross-offshore breeze, but the swell is too weak to do anything with. The energy readings are in the low double digits to under 100, which is weak. Honestly, starting around the 28th, the forecast looks like a complete lull with no real surf to speak of for the rest of the period.
So, the takeaway? Keep your eyes on Thursday morning, July 23rd. That’s your one real window. The rest of the 16 days? It’s a long wait for a wave that probably isn’t coming. I’ll be there on the 23rd, hoping for the best.
Short Range ForecastModerate rain (total 11mm), heaviest on Sat night. Warm (max 26°C on Sun night, min 19°C on Sun night). Winds decreasing (strong winds from the SW on Sat night, calm by Mon morning). | Days 5-7 Weather SummaryModerate rain (total 12mm), heaviest on Tue night. Warm (max 25°C on Wed night, min 16°C on Thu morning). Winds decreasing (fresh winds from the SW on Wed afternoon, calm by Thu night). | ||||||||||||||||||
Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | ||||||||||||||
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 6 | SSW 7 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 7 | S 7 | SSW 6 | S 8 | SSW 9 | S 9 | S 10 | S 9 | SSE 8 | S 8 | SSW 8 | S 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 303 | 224 | 219 | 127 | 101 | 96 | 96 | 57 | 83 | 48 | 839 | 955 | 828 | 539 | 642 | 213 | 149 | 101 | 157 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | off | cross-off | cross-off | glassy | cross-on | on | on | cross-on | cross | cross | cross-on | off | cross-off | cross-on | glassy | cross | cross-on | glassy |
High Tide | 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 | 4:34PM0.84m | 4:50AM0.62m | 5:29PM0.84m | |||||||
Low Tide | 6:28AM0.03m | 7:10PM0.13m | 7:13AM0.09m | 8:13PM0.18m | 8:00AM0.14m | 9:16PM0.21m | 8:51AM0.18m | 10:16PM0.22m | 9:47AM0.20m | 11:12PM0.22m | 10:41AM0.20m | 00:03AM0.20m | |||||||
 |  | |  | | | |  | |  | | |  | | | | | | | |
 | — | 5:28 | — | — | 5:30 | — | — | 5:31 | — | — | 5:31 | — | — | 5:33 | — | — | 5:33 | — | — |
 | 8:15 | — | 8:15 | — | — | 8:14 | — | — | 8:13 | — | — | 8:12 | — | — | 8:12 | — | — | 8:10 | — |
mm | 11 | — | — | — | — | — | — | — | — | 12 | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 22 | 25 | 26 | 21 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 25 | 20 | 22 | 21 | 20 | 22 | 22 |
Feels °C | 18 | 19 | 21 | 23 | 19 | 19 | 19 | 21 | 21 | 22 | 20 | 21 | 24 | 19 | 19 | 19 | 19 | 21 | 20 |
Swell 1 Height (m) Direction Period (s) | SE 13 | SSW 7 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 7 | SE 8 | SE 5 | — | — | S 9 | S 10 | S 9 | SSE 8 | S 8 | SSW 8 | S 8 |
| kJ | 7 | 224 | 219 | 127 | 101 | 96 | 96 | 57 | 2 | 37 | — | — | 828 | 539 | 642 | 213 | 149 | 101 | 157 |
Swell 2 Height (m) Direction Period (s) | E 8 | SE 13 | SE 12 | SE 12 | NNE 3 | SE 9 | SE 8 | SE 8 | SE 11 | SSE 8 | — | — | — | SE 8 | — | SSW 8 | SE 7 | SE 8 | SE 8 |
| kJ | 1 | 7 | 6 | 6 | 1 | 3 | 3 | 3 | 5 | 6 | — | — | — | 84 | — | 180 | 86 | 88 | 122 |
Swell 3 Height (m) Direction Period (s) | — | — | — | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | SE 11 | S 9 | — | — | — | — | — | SE 11 | — | — | NE 4 |
| kJ | — | — | — | 6 | 6 | 6 | 6 | 6 | 5 | 2 | — | — | — | — | — | 5 | — | — | 4 |
Wind waves Height (m) Direction Period (s) | SW 6 | NW 3 | — | NNW 3 | — | — | — | SSE 3 | S 7 | SSW 6 | S 8 | SSW 9 | — | — | — | — | NE 3 | ENE 4 | — |
| kJ | 303 | 2 | — | 3 | — | — | — | 7 | 83 | 48 | 839 | 955 | — | — | — | — | 4 | 3 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 445 | 0 | 24 | 24 | 24 | 702 | 249 | 1038 | 1148 | 615 | 217 | 24 | 0 | 0 | 24 | 0 | 24 | 24 | 0 |
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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