Surf Forecasts:
Block Island surf forecast from 12 Jul 2026:
- Most powerful swell: Wednesday 15 Jul, 2AM (local time) - 7ft (2.1m), 7s period, SW swell with 386 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-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Thursday (Jul 16) at 11PM.
| 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.
Alright, Rusty here. Let's talk about Block Island.
First off, I gotta be straight with you. For the next week and a half or so, it’s a dud. We're looking at a long stretch of small, weak, junky surf. Don't get your hopes up.
From the 11th right through to the 19th, there's hardly a wave worth paddling for. The swell is tiny, mostly under 2 ft, and the wind is all over the place – cross-on, onshore, making a mess of things. The water is a bit colder than normal for this time of year, sitting at 66°. There's a glassy moment on the morning of the 17th, but even then, the energy is just not there. It's a frustrating start.
We get a slight glimmer on the 20th. Monday morning sees a little bump in size to 4 ft from the S, with a clean cross-off wind. It's just surfable, but nothing to write home about. The energy is still weak.
The real standout, the only one worth circling on your calendar, is the morning of Wednesday the 22nd of July. That's the one. We’ve got a 5 ft swell from the S, with a period of 8 seconds, and a light cross-off breeze from the NE. The combined energy jumps up to a moderate level. The forecast is saying "expect good surf conditions," and with the wind cleaning it up, it should be fun. The swell direction is S, which is a good match for the break's optimum SE direction. Keep in mind Block Island is a point break that rarely breaks, so it's not a given, but conditions look the best they're going to get. It's a decent size, so it might be a bit much for total beginners, but it's not a full-on beast.
After that, the 23rd brings a bigger swell at 6 ft to 7 ft, but the wind swings cross-on from the E, making it a mess. The 24th and 25th see even more energy with strong, messy cross-shore winds, creating a lumpy, choppy scene. That's more of a kite-surfing setup than a clean paddle session. The period is short, so it's all wind swell.
So, to wrap it up: the morning of the 22nd of July is your best bet. Everything else is pretty grim. A rare break coming together for a day is a big deal, so keep your fingers crossed for that one.
Rusty.
Short Range ForecastMostly dry. Warm (max 24°C on Sat afternoon, min 21°C on Sat night). Winds increasing (calm on Sat night, fresh winds from the WSW by Mon night). | Days 5-7 Weather SummaryMostly dry. Warm (max 29°C on Wed afternoon, min 19°C on Fri morning). Winds decreasing (strong winds from the SW on Tue night, calm by Fri morning). | ||||||||||||||||||||
Sat 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SSW 7 | S 7 | S 7 | S 7 | S 7 | SE 9 | S 7 | SW 4 | SW 4 | SW 6 | SW 7 | SW 6 | SW 6 | SSW 6 | SSW 6 | SW 6 | SSW 6 | SSW 6 | S 6 | SSW 6 | SSW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 36 | 22 | 34 | 22 | 24 | 14 | 32 | 17 | 40 | 177 | 386 | 162 | 102 | 57 | 82 | 91 | 55 | 39 | 26 | 30 | 12 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | cross | on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross-off | cross-on | cross | off | glassy | cross-off | cross-off | glassy |
High Tide | 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 | 11:11PM0.97m | 11:49AM0.98m | |||||||
Low Tide | 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 | 5:43AM-0.02m | ||||||||
 |  |  | | | | | | | | | | |  | | | | | | | | |
 | — | — | 5:24 | — | — | 5:24 | — | — | 5:24 | — | — | 5:26 | — | — | 5:26 | — | — | 5:26 | — | — | 5:28 |
 | 8:19 | — | — | 8:19 | — | — | 8:17 | — | — | 8:17 | — | — | 8:16 | — | — | 8:16 | — | — | 8:15 | — | 8:15 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 22 | 21 | 23 | 21 | 21 | 21 | 21 | 23 | 23 | 24 | 27 | 29 | 27 | 22 | 27 | 28 | 21 | 26 | 24 | 20 |
Feels °C | 22 | 20 | 19 | 20 | 18 | 21 | 17 | 18 | 20 | 19 | 20 | 27 | 28 | 26 | 22 | 23 | 25 | 22 | 23 | 21 | 19 |
Swell 1 Height (m) Direction Period (s) | SSW 7 | S 7 | S 7 | S 7 | S 7 | SSW 7 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 8 | SSW 6 | SSW 6 | ESE 8 | SSW 6 | SSW 6 | S 6 | SSW 6 | SSW 6 |
| kJ | 36 | 22 | 34 | 22 | 24 | 9 | 13 | 13 | 13 | 21 | 20 | 19 | 11 | 57 | 82 | 6 | 55 | 39 | 26 | 30 | 12 |
Swell 2 Height (m) Direction Period (s) | SE 9 | SE 4 | SE 10 | SE 4 | SE 10 | SE 9 | E 7 | E 8 | E 8 | E 7 | — | S 17 | S 17 | SE 8 | ESE 8 | S 15 | W 4 | E 3 | SE 8 | SE 8 | SE 8 |
| kJ | 14 | 4 | 14 | 3 | 14 | 14 | 1 | 1 | 1 | 1 | — | 6 | 5 | 11 | 6 | 4 | 1 | 1 | 3 | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | — | SE 10 | E 7 | SE 10 | ESE 4 | E 8 | S 7 | — | — | — | — | — | — | S 17 | S 15 | — | ESE 8 | N 3 | SE 14 | SE 14 | SE 13 |
| kJ | — | 14 | 1 | 14 | 1 | 1 | 1 | — | — | — | — | — | — | 5 | 4 | — | 7 | 1 | 8 | 8 | 7 |
Wind waves Height (m) Direction Period (s) | E 3 | ENE 4 | ESE 4 | ESE 4 | — | SSE 6 | S 7 | SW 4 | SW 4 | SW 6 | SW 7 | SW 6 | SW 6 | — | — | SW 6 | NNW 3 | NNW 3 | WSW 3 | NW 3 | N 3 |
| kJ | 5 | 2 | 6 | 2 | — | 4 | 32 | 17 | 40 | 177 | 386 | 162 | 102 | — | — | 91 | 4 | 1 | 6 | 2 | 3 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 642 | 642 | 645 | 767 | 769 | 846 | 988 | 861 | 846 | 1098 | 249 | 24 | 26 | 24 | 81 | 29 | 24 | 24 | 2633 | 767 | 634 |
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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