Surf Forecasts:
Thunder surf forecast from 11 Aug 2026:
- Most powerful swell: Monday 17 Aug, 5PM (local time) - 3ft (0.9m), 8s period, ESE swell with 112 kJ wave energy.
Best Forecast Surf Conditions for Thunder this week:
The most powerful waves expected at Thunder in the next 16 days are 0.9m 8s and forecast to arrive on Monday (Aug 17) at 5PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 13s period and expected on Sunday (Aug 16) at 5PM.
| Wave Type | Time (AST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5PM (Mon 17th Aug) | 3ft (0.9m) 8s |
Table - best surf conditions forecast for Thunder over the next 16 days.
The Lowdown
Hey, it’s Rusty. Let’s cut through the noise. Over the next 16 days at Thunder, the surf is a no-go. The whole stretch is marked as poor surf conditions.
The first sign of life is a tiny 1ft ESE swell on Tuesday the 11th, with a short 8-second period. Combined energy is a weak 26, and with a cross-off breeze, it’s a washout. This continues through Wednesday and Thursday, with most days showing zero swell.
Come Sunday the 17th of August, there’s a bump to 3ft from the ESE, but the period is still short, and the wind is cross-shore with a chop. Not a standout. Energy hits 109 – moderate, but still poor. The only other blip is Friday the 21st, with a 4ft ESE swell and a 9-second period, energy at 199 – moderate energy, but again, cross-off wind kills it.
This reef break rarely works, and with the swell direction off from its optimum and the wind blowing wrong, it’s a tough run. Long gaps of zero swell are normal here. If you’re into kite surfing, the setup might be worth a look. For surfers, it’s a dead period. Forecasts can change, but for now, don’t waste your time.
Stay patient,
Rusty
Short Range ForecastLight rain (total 3mm), mostly falling on Tue night. Warm (max 28°C on Tue afternoon, min 26°C on Tue night). Winds increasing (light winds from the E on Tue night, strong winds from the E by Thu morning). | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Sun morning. Warm (max 28°C on Fri morning, min 26°C on Sat night). Winds decreasing (fresh winds from the E on Fri morning, light winds from the ESE by Sun night). | ||||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | |||||||||||||||
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) | ESE 8 | SE 8 | ESE 8 | ENE 7 | SE 8 | SE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | SE 8 | SE 8 | SE 8 | SE 9 | SE 8 | ESE 8 | SE 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 45 | 32 | 23 | 0 | 15 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 20 | 15 | 20 | 66 | 112 | 89 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 3:17PM0.67m | 2:44AM0.87m | 3:54PM0.72m | 3:34AM0.89m | 4:30PM0.75m | 4:22AM0.87m | 5:04PM0.77m | 5:08AM0.83m | 5:37PM0.77m | 5:53AM0.76m | 6:10PM0.76m | 6:39AM0.68m | 6:43PM0.74m | ||||||||
Low Tide | 8:49AM0.02m | 8:36PM0.30m | 9:33AM0.02m | 9:25PM0.26m | 10:13AM0.05m | 10:12PM0.22m | 10:51AM0.09m | 10:58PM0.20m | 11:26AM0.15m | 11:44PM0.19m | 11:59AM0.22m | 00:31AM0.20m | 12:30PM0.28m | 1:20AM0.21m | |||||||
 | |  |  |  | | | |  | | |  | | | | | | | | | | |
 | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:46 | — | — | 5:46 | — | — |
 | — | 6:21 | — | — | 6:21 | — | — | 6:20 | — | — | 6:20 | — | — | 6:19 | — | — | 6:19 | — | — | 6:17 | — |
mm | — | — | 1 | — | 1 | 1 | — | — | — | — | — | — | — | — | — | 3 | 1 | — | — | 3 | 1 |
Temp °C | 27 | 28 | 27 | 27 | 28 | 27 | 27 | 27 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 27 | 27 | 27 | 28 | 28 | 27 |
Feels °C | 28 | 30 | 29 | 27 | 28 | 26 | 24 | 24 | 25 | 25 | 26 | 25 | 26 | 26 | 26 | 27 | 28 | 29 | 30 | 30 | 29 |
Swell 1 Height (m) Direction Period (s) | ESE 8 | SE 8 | NE 7 | NE 9 | SE 8 | SE 8 | N 15 | N 14 | N 14 | N 13 | N 12 | NNE 12 | NNE 12 | NNE 12 | NNE 11 | ENE 16 | ENE 13 | ENE 12 | ENE 11 | ENE 10 | ENE 9 |
| kJ | 45 | 32 | 63 | 12 | 15 | 9 | 4 | 4 | 4 | 13 | 12 | 14 | 28 | 45 | 41 | 201 | 2117 | 1269 | 575 | 263 | 218 |
Swell 2 Height (m) Direction Period (s) | NE 9 | ENE 10 | ESE 8 | — | NE 8 | — | — | — | — | — | — | — | — | — | SE 8 | NNE 11 | NNE 11 | NNE 10 | NNE 10 | NNE 8 | N 7 |
| kJ | 19 | 9 | 23 | — | 18 | — | — | — | — | — | — | — | — | — | 2 | 47 | 66 | 42 | 56 | 70 | 25 |
Swell 3 Height (m) Direction Period (s) | ENE 9 | — | ENE 8 | — | — | — | — | — | — | — | — | — | — | — | — | SE 8 | SE 8 | SE 9 | SE 8 | NNE 10 | NNE 10 |
| kJ | 8 | — | 6 | — | — | — | — | — | — | — | — | — | — | — | — | 20 | 15 | 20 | 18 | 19 | 20 |
Wind waves Height (m) Direction Period (s) | ENE 6 | ENE 7 | E 5 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | — | — | SE 8 | ESE 8 | SE 7 |
| kJ | 30 | 93 | 21 | 192 | 168 | 348 | 661 | 695 | 584 | 636 | 669 | 630 | 578 | 541 | 504 | 549 | — | — | 66 | 112 | 89 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 251 | 8 | 8 | 251 | 895 | 765 | 848 | 322 | 457 | 793 | 848 | 806 | 848 | 848 | 848 | 8 | 8 | 27 | 27 | 27 | 235 |
Best forecast wave conditions in Barbados | |||||||||||||||||||||
Best forecast wave conditions in Barbados | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Latest Updates
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Thunder surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Thunder Surf forecast
The above surf forecast table for Thunder provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Thunder can be found by selecting the local surf guide option on the grey menu. Our Thunder 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 (Thunder) 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 Thunder 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.
Are you planning a holiday in Barbados? If you are looking for accommodation near Thunder, camping, hotels and holiday cottages in Barbados, consider staying in Bridgetown which is 3 km (2 miles) away.
Nearest