Surf Forecasts:
Thunder surf forecast from 8 Aug 2026:
- Most powerful swell: Saturday 8 Aug, 5AM (local time) - 2.5ft (0.8m), 8s period, ESE swell with 82 kJ wave energy.
Best Forecast Surf Conditions for Thunder this week:
The most powerful waves expected at Thunder in the next 16 days are 0.8m 8s and forecast to arrive on Saturday (Aug 08) at 5AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.5m 10s period and expected on Friday (Aug 14) at 2AM.
| Wave Type | Time (AST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5AM (Sat 8th Aug) | 2.5ft (0.8m) 8s |
Table - best surf conditions forecast for Thunder over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s on the table for the next couple of weeks.
Honestly, it’s a pretty grim stretch for Thunder. The whole 16-day window is a write-off for any decent surf. We’re talking nearly two weeks of nothing worthwhile. The first few days, from Saturday the 8th to Tuesday the 12th, we get tiny, weak pulses. The biggest bump in that early window is only 2ft on Monday the 10th, from the SE, with a period of just 8 seconds – that’s weak, short-period slop. Combined energy is a paltry 57 (moderate wave energy), but the quality is just poor. The wind is a cross-off from the E, which keeps it clean, but there’s just no power.
Then it goes completely flat from Wednesday the 13th right through to Saturday the 16th. Nothing. Nada. A big gap of dead calm. We get a tiny blip on Sunday the 16th morning with 2ft from the SE, but it’s still poor surf. The following week picks up a bit more, but it’s all still poor. On Wednesday the 20th, we get a little 1ft SE swell with a period of 12 seconds, but the combined energy is only 68. Friday the 21st sees the biggest swell of the entire period at 3ft from the SE, with a period of 8 seconds and combined energy of 132 (moderate wave energy), but again, the forecast calls it poor surf. The wind stays cross-off the whole time, so it’s clean, but it’s just not enough to push a decent wave here.
Thunder is a reef break that rarely breaks, so this kind of blank run is more normal for the area. It’s not a spot that fires often, and when it does, it needs a lot more direction and energy than what’s on offer. The optimum swell direction is from the ENE, and we’re getting nothing but weak SE energy. There’s no standout here. The best shot on the whole board is probably Friday the 21st, with 3ft and moderate energy, but even that’s a stretch. If you’re desperate, you could paddle out and enjoy the clean conditions, but you’ll be waiting a long time between sets.
Stay patient, and check back. Forecasts can change.
Rusty.
Short Range ForecastModerate rain (total 11mm), heaviest on Sun morning. Warm (max 28°C on Fri night, min 27°C on Fri night). Mainly fresh winds. | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Mon night. Warm (max 28°C on Tue afternoon, min 27°C on Mon night). Mainly fresh winds. | ||||||||||||||||||
Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | ||||||||||||||
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 | ESE 7 | ESE 8 | SE 11 | ESE 8 | ESE 8 | ESE 8 | SE 8 | SE 8 | ESE 8 | SE 8 | ESE 8 | E 6 | E 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | E 10 |
Wave Graph  | |||||||||||||||||||
 kJ | 73 | 31 | 24 | 5 | 26 | 26 | 25 | 46 | 57 | 44 | 32 | 24 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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 | cross-off | cross-off | cross-off | cross-off | off | off |
High Tide | 10:15PM0.72m | 12:46PM0.53m | 11:35PM0.74m | 1:49PM0.58m | 00:47AM0.79m | 2:37PM0.63m | 1:49AM0.84m | 3:17PM0.67m | 2:44AM0.87m | 3:54PM0.72m | 3:34AM0.89m | 4:30PM0.75m | 4:22AM0.87m | ||||||
Low Tide | 5:55AM0.13m | 5:19PM0.41m | 7:03AM0.08m | 6:38PM0.39m | 7:59AM0.04m | 7:42PM0.35m | 8:49AM0.02m | 8:36PM0.30m | 9:33AM0.02m | 9:25PM0.26m | 10:13AM0.05m | 10:12PM0.22m | |||||||
 |  | |  |  | | | | | | | | | | | |  | | | |
 | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — |
 | 6:22 | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:21 | — | — | 6:21 | — | — | 6:20 | — |
mm | — | — | — | 1 | 3 | 2 | 3 | — | 2 | 2 | 1 | 1 | 1 | — | — | — | — | — | 3 |
Temp °C | 28 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 27 | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 27 |
Feels °C | 29 | 28 | 28 | 27 | 29 | 29 | 28 | 28 | 28 | 28 | 27 | 29 | 28 | 28 | 27 | 27 | 25 | 26 | 24 |
Swell 1 Height (m) Direction Period (s) | ESE 8 | NNE 6 | NNE 7 | NNE 7 | NE 7 | NE 7 | ESE 8 | SE 8 | SE 8 | ESE 8 | SE 8 | ESE 8 | NNE 9 | NNE 8 | NE 8 | — | N 15 | N 14 | — |
| kJ | 73 | 52 | 56 | 56 | 44 | 55 | 25 | 46 | 57 | 44 | 32 | 24 | 15 | 14 | 3 | — | 4 | 4 | — |
Swell 2 Height (m) Direction Period (s) | NNE 7 | ESE 7 | ESE 8 | NNE 8 | ESE 8 | ESE 8 | NE 8 | NNE 8 | NE 8 | NNE 7 | NE 9 | NE 8 | ENE 10 | ENE 9 | N 11 | — | — | — | — |
| kJ | 41 | 31 | 24 | 28 | 26 | 26 | 18 | 14 | 16 | 25 | 19 | 18 | 10 | 7 | 2 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | NNE 9 | ESE 8 | NNE 9 | SE 11 | NE 8 | NE 8 | NE 11 | NNE 11 | NNE 10 | NE 9 | ENE 9 | ENE 10 | NE 8 | — | — | — | — | — | — |
| kJ | 9 | 26 | 8 | 5 | 18 | 18 | 5 | 11 | 10 | 21 | 8 | 9 | 3 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | E 7 | E 7 | E 7 | E 7 | ENE 6 | ENE 6 | ENE 6 | E 5 | E 6 | E 6 | E 6 | E 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | E 10 |
| kJ | 93 | 67 | 107 | 189 | 131 | 89 | 153 | 97 | 67 | 43 | 66 | 82 | 135 | 171 | 247 | 362 | 437 | 507 | 4222 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 8 | 1008 | 848 | 251 | 27 | 821 | 765 | 251 | 27 | 8 | 848 | 251 | 765 | 848 | 813 | 259 | 848 | 848 | 765 |
Best forecast wave conditions in Barbados | |||||||||||||||||||
Best forecast wave conditions in Barbados | |||||||||||||||||||
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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.
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