Surf Forecasts:
Block Island surf forecast from 23 Jul 2026:
- Best quality surf: Wednesday 29 Jul, 5AM (local time) - 2.5ft (0.8m), 7s period, SSW swell with glassy winds.
- Most powerful swell: Tuesday 28 Jul, 5PM (local time) - 7ft (2.2m), 7s period, SSE swell with 542 kJ wave energy.
- Next surfable swell (1★+): Wednesday 29 Jul, 5AM (local time) - 2.5ft (0.8m), 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 Wednesday (Jul 29) at 5AM. The primary swell is predicted to be 0.6m and 8s period with a secondary swell of 0.8m and 7s. Another secondary swell of 0.7m and 7s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Block Island in the next 16 days are 2.2m 7s and forecast to arrive on Tuesday (Jul 28) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Tuesday (Jul 28) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Wed 29th Jul) | 2.5ft (0.8m) 7s |
| Best Surf | 5AM (Wed 29th Jul) | 2.5ft (0.8m) 7s |
| Most Powerful | 5PM (Tue 28th Jul) | 7ft (2.2m) 7s |
Table - best surf conditions forecast for Block Island over the next 16 days.
The Lowdown
Alright, this is Rusty, and I’m looking at the surf forecast for Block Island. I gotta level with you – it’s a rough stretch. This break is a point that rarely breaks, so it’s always a bit of a gamble, and this 16-day window is a tough one. We’re looking at a big gap, about two weeks, where the conditions just aren’t coming together for a decent paddle. The first real chance doesn’t come until the very end of the first week of August.
The water temperature is currently sitting at 67°, which is a full 4° colder than what’s normal for this time of year. That’s a notable chill, so you’ll want a thicker suit if you’re heading out.
The only real glimmer of hope comes on the morning of Monday, August 3rd. The wind is light from the north, blowing offshore, and the conditions are clean. The swell is a modest 4 ft coming from the south with a period of 9 seconds, so the combined wave energy is a moderate 196. It’s a small, clean window, but with the right tide, you might find a couple of fun ones at a point that’s better suited to intermediate surfers. It’s surfable, but very ordinary.
The rest of the time is a write-off. The wind is either onshore, cross-onshore, or just too strong, and the swell is small and short-period. The afternoon of Tuesday, July 28th, sees a bigger bump of 7 ft from the SSE, but with a cross-onshore wind of 12 mph and a short 7-second period, it’s a choppy, messy mess. The combined energy spikes to 953, but the quality is poor. Honestly, with that setup, it looks more interesting for kite surfing than a paddle.
So, in short, the best on offer is the morning of August 3rd. It’s not a standout by any stretch, but it’s the only clean, offshore window in the whole forecast. It’s a long wait for a tiny bit of hope. Keep an eye on the charts, but don’t hold your breath.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Thu afternoon, min 16°C on Sun morning). Winds increasing (calm on Fri morning, fresh winds from the ENE by Sat afternoon). | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Mon night. Warm (max 23°C on Tue afternoon, min 19°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | ||||||||||||||
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) | S 8 | SSW 8 | SSW 7 | SE 6 | SE 7 | ESE 7 | ESE 7 | ESE 7 | SE 8 | ESE 8 | ESE 7 | ESE 7 | SE 8 | SE 8 | SSW 6 | SSE 7 | S 7 | SSE 8 | S 8 | S 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 241 | 102 | 49 | 25 | 77 | 99 | 186 | 166 | 55 | 99 | 81 | 68 | 48 | 39 | 111 | 542 | 171 | 135 | 138 | 110 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | glassy | on | cross | cross | cross | cross-off | cross | cross-on | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-off | on | glassy |
High Tide | 4:34PM0.84m | 4:50AM0.62m | 5:29PM0.84m | 5:46AM0.63m | 6:20PM0.87m | 6:36AM0.66m | 7:04PM0.89m | 7:22AM0.70m | 7:44PM0.91m | 8:03AM0.75m | 8:20PM0.92m | 8:42AM0.79m | 8:52PM0.93m | |||||||
Low Tide | 11:12PM0.22m | 10:41AM0.20m | 00:03AM0.20m | 11:33AM0.19m | 00:49AM0.18m | 12:20PM0.17m | 1:30AM0.14m | 1:04PM0.14m | 2:08AM0.11m | 1:45PM0.12m | 2:43AM0.07m | 2:24PM0.11m | 3:15AM0.05m | |||||||
 |  | | |  |  | | | | | | | |  |  | | | | |  | |
 | — | — | 5:33 | — | — | 5:33 | — | — | 5:35 | — | — | 5:35 | — | — | 5:37 | — | — | 5:37 | — | — |
 | 8:12 | — | — | 8:10 | — | — | 8:09 | — | — | 8:08 | — | — | 8:07 | — | — | 8:07 | — | — | 8:06 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 2 | — | — | — | — | 9 |
Temp °C | 22 | 22 | 21 | 21 | 21 | 20 | 21 | 20 | 19 | 20 | 20 | 20 | 21 | 21 | 22 | 23 | 23 | 21 | 23 | 22 |
Feels °C | 19 | 19 | 21 | 19 | 17 | 15 | 16 | 15 | 17 | 18 | 18 | 19 | 19 | 19 | 22 | 24 | 23 | 23 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | S 8 | SSW 8 | SSW 7 | SSW 7 | SE 7 | ESE 7 | S 6 | ESE 7 | SE 8 | ESE 8 | ESE 7 | ESE 7 | SE 8 | SE 8 | SSW 6 | SSE 7 | S 7 | SSE 8 | S 8 | S 8 |
| kJ | 241 | 102 | 49 | 25 | 77 | 99 | 7 | 166 | 55 | 99 | 81 | 68 | 48 | 39 | 111 | 542 | 171 | 135 | 138 | 110 |
Swell 2 Height (m) Direction Period (s) | — | SE 7 | SE 6 | SE 8 | SSW 6 | S 7 | — | S 7 | S 7 | S 7 | S 6 | SSW 7 | E 7 | E 7 | SE 8 | E 6 | E 6 | SSW 6 | — | ENE 7 |
| kJ | — | 49 | 33 | 23 | 8 | 9 | — | 9 | 17 | 8 | 3 | 5 | 14 | 14 | 33 | 3 | 11 | 27 | — | 9 |
Swell 3 Height (m) Direction Period (s) | — | NE 4 | SSE 9 | — | — | SSW 6 | — | — | S 7 | — | — | S 5 | SSW 7 | E 7 | E 7 | — | E 8 | E 6 | — | SSE 11 |
| kJ | — | 1 | 8 | — | — | 4 | — | — | 17 | — | — | 1 | 4 | 23 | 15 | — | 1 | 12 | — | 11 |
Wind waves Height (m) Direction Period (s) | — | — | — | SE 6 | — | — | ESE 7 | NNE 4 | ENE 5 | — | — | — | S 3 | S 4 | — | SSW 8 | NNW 4 | NNE 4 | ENE 6 | NE 4 |
| kJ | — | — | — | 23 | — | — | 186 | 5 | 40 | — | — | — | 2 | 25 | — | 408 | 15 | 8 | 22 | 8 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 24 | 24 | 24 | 680 | 25 | 691 | 844 | 24 | 24 | 377 | 24 | 161 | 1008 | 152 | 24 | 24 | 24 | 0 | 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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