
Surf Forecasts:
Block Island surf forecast from 1 Aug 2026:
- Best quality surf: Tuesday 4 Aug, 8AM (local time) - 5ft (1.6m), 8s period, S swell with cross-offshore winds.
- Most powerful swell: Monday 3 Aug, 5PM (local time) - 7ft (2.2m), 8s period, S swell with 659 kJ wave energy.
- Next surfable swell (1★+): Tuesday 4 Aug, 8AM (local time) - 5ft (1.6m), 8s period with S 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 Tuesday (Aug 04) at 8AM. The primary swell is predicted to be 1.6m and 8s period. The wind is predicted to be cross-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 Monday (Aug 03) 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 0.8m 6s period and expected on Saturday (Aug 08) at 8AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Tue 4th Aug) | 5ft (1.6m) 8s |
| Best Surf | 8AM (Tue 4th Aug) | 5ft (1.6m) 8s |
| Most Powerful | 5PM (Mon 3rd Aug) | 7ft (2.2m) 8s |
Table - best surf conditions forecast for Block Island over the next 16 days.
The Lowdown
Alright, let’s be straight with you. The next two weeks around Block Island are a tough watch. There’s hardly any real surf on the horizon.
Your best window is Tuesday, 4 August, in the morning. There’ll be a bump of 5ft swell from the south, with a 8-second period, and the wind goes glassy. That’s the only time we get a “good surf conditions” call. The combined energy is moderate (287), but it’s a short-period swell, so it won’t have much punch. The water is 68°, which is about 3° cooler than usual for this time of year – noticeably colder, so you’ll want a good wetsuit. After that morning, the wind turns onshore and the quality drops right off.
After that, it’s a long, frustrating stretch. The rest of the first week and into the second is just small, weak, short-period swell with constant cross-onshore wind. Most days the swell is under 4ft, with periods as short as 5-6 seconds – that’s wind chop, not surf. The combined energy is mostly weak (under 100), with a few moderate spikes up to 100-200, but the wind always messes it up. There’s a small bump on the morning of 14 August with a clean cross-off wind and 5ft swell, but the period is only 5 seconds, so it’s just a weak, messy bump. The afternoon of the 14th shows 7ft from the SSW, but it’s onshore and messy – blown-out and lumpy.
Truth is, there’s no standout session here. The only real chance is that Tuesday morning glass-off, and it’s a tiny window. Block Island is a point break that’s exposed to the south-east, and we’re stuck with SSW and S swells the whole time – the optimum swell direction is SE, so we’re not getting what we need. It’s a spot that rarely breaks anyway, and this run is a perfect example of a dry spell.
If you’re keen, hit that Tuesday morning, but otherwise, I’d say bunk off. The forecast might change, but right now, it’s a long wait.
Rusty
Short Range ForecastModerate rain (total 10mm), heaviest on Sun night. Warm (max 24°C on Sat morning, min 22°C on Sun night). Winds increasing (light winds from the WSW on Sat morning, strong winds from the SW by Mon night). | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Thu night. Warm (max 26°C on Thu morning, min 22°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | |||||||||||||||
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 8 | S 8 | S 8 | SSW 7 | S 7 | S 5 | S 8 | S 8 | SSW 8 | S 8 | S 8 | S 7 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SW 7 | SSW 6 | SSW 6 | SSW 7 |
Wave Graph | |||||||||||||||||||||
109 | 61 | 43 | 67 | 24 | 50 | 368 | 659 | 485 | 280 | 227 | 147 | 127 | 87 | 156 | 181 | 191 | 286 | 145 | 149 | 254 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross | glassy | cross-on | cross-off | cross | on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross |
High Tide | 10:22AM0.87m | 10:28PM0.90m | 10:55AM0.89m | 11:07PM0.87m | 11:33AM0.91m | 11:50PM0.83m | 12:17PM0.93m | 00:39AM0.78m | 1:08PM0.94m | 1:35AM0.74m | 2:09PM0.95m | 2:40AM0.71m | 3:20PM0.97m | 3:52AM0.71m | |||||||
Low Tide | 4:15PM0.11m | 4:32AM0.04m | 4:56PM0.12m | 5:02AM0.05m | 5:42PM0.13m | 5:39AM0.06m | 6:38PM0.14m | 6:24AM0.07m | 7:51PM0.16m | 7:16AM0.08m | 9:20PM0.16m | 8:19AM0.08m | 10:36PM0.14m | ||||||||
5:41 | — | — | 5:41 | — | — | 5:43 | — | — | 5:43 | — | — | 5:45 | — | — | 5:46 | — | — | 5:47 | — | — | |
— | 8:02 | — | — | 8:01 | — | — | 8:00 | — | — | 7:59 | — | — | 7:58 | — | — | 7:57 | — | — | 7:55 | — | |
mm | — | — | — | — | — | 5 | 3 | 1 | 1 | — | — | — | 1 | — | — | — | — | 5 | — | — | 1 |
Temp °C | 24 | 24 | 23 | 23 | 23 | 24 | 23 | 24 | 23 | 23 | 24 | 23 | 23 | 24 | 25 | 26 | 25 | 24 | 26 | 28 | 27 |
Feels °C | 24 | 23 | 22 | 24 | 23 | 24 | 23 | 22 | 24 | 26 | 26 | 25 | 26 | 26 | 27 | 26 | 24 | 23 | 27 | 26 | 26 |
Swell 1 Height (m) Direction Period (s) | SSW 8 | S 8 | S 8 | SE 7 | S 7 | SE 6 | E 8 | S 8 | SSW 8 | S 8 | S 8 | S 7 | E 10 | SE 6 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 |
109 | 61 | 43 | 17 | 24 | 10 | 1 | 659 | 485 | 280 | 227 | 147 | 2 | 14 | 3 | 10 | 9 | 9 | 9 | 10 | 21 | |
Swell 2 Height (m) Direction Period (s) | SE 9 | SE 7 | SE 7 | SE 9 | SE 7 | SE 9 | — | — | — | ESE 8 | SE 8 | E 12 | — | SE 8 | E 10 | E 11 | E 11 | E 10 | E 10 | E 9 | E 9 |
27 | 18 | 12 | 3 | 16 | 3 | — | — | — | 7 | 3 | 3 | — | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | |
Swell 3 Height (m) Direction Period (s) | E 6 | E 6 | ESE 9 | S 9 | SE 9 | SE 8 | — | — | — | — | — | — | — | E 10 | — | — | — | — | — | — | — |
1 | 1 | 7 | 2 | 3 | 3 | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | SSW 4 | SSW 4 | SSW 7 | S 4 | S 5 | S 8 | — | — | — | — | — | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SW 7 | SSW 6 | SSW 6 | SSW 7 |
— | 14 | 18 | 67 | 12 | 50 | 368 | — | — | — | — | — | 127 | 87 | 156 | 181 | 191 | 286 | 145 | 149 | 254 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 24 | 634 | 249 | 767 | 1541 | 1223 | 1528 | 133 | 24 | 0 | 24 | 0 | 24 | 24 | 209 | 24 | 24 | 24 | 24 | 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.











