Surf Forecasts:
Thunder surf forecast from 10 Sep 2026:
- Most powerful swell: Tuesday 15 Sep, 8PM (local time) - 3.5ft (1.0m), 8s period, ESE swell with 126 kJ wave energy.
Best Forecast Surf Conditions for Thunder this week:
The most powerful waves expected at Thunder in the next 16 days are 1.0m 8s and forecast to arrive on Tuesday (Sep 15) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 8s period and expected on Thursday (Sep 17) at 8AM.
| Wave Type | Time (AST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Tue 15th Sep) | 3.5ft (1.0m) 8s |
Table - best surf conditions forecast for Thunder over the next 16 days.
The Lowdown
Alright, grab a coffee and listen up. Rusty here with the outlook for the Thunder spot.
First thing I gotta tell ya – it’s looking pretty bleak out there for the next 16 days. We’ve got a handful of tiny, weak pulses, but nothing that’s going to get your heart racing. This is a sheltered reef break that rarely breaks as it is, and the conditions are just not lining up. The water temp is sitting at 85°F, which is about average for this time of year, so at least you won’t be cold while you’re sitting there scratching your head.
We start on Thursday the 10th of September with a tiny 1 ft swell from the SE. The period is a short 9 seconds, and we’ve got a fresh 19 mph cross-offshore wind. The energy is weak (21), and honestly, it’s just poor surf. That pattern pretty much holds through the weekend and into next week. A bit of a pulse shows up on Sunday the 13th, with the swell climbing to 3 ft from the SE, but the period drops to a short, weak 8 seconds. The combined energy is still low at 91. It's still messy with that cross-off breeze.
We hit a long stretch of nothing from Monday the 15th of September through the 20th. Just small, weak signals or flat spells. There’s a little rise on Monday the 21st of September: a 3 ft ESE swell with a short 8-second period, puts the energy at a moderate 109. But the wind is still blowing cross-off at 16 to 19 mph, and the quality stays poor.
Honestly, there isn’t a standout session in this whole run. If you’re desperate for a paddle, the two slightly better windows are the afternoon of Sunday the 13th of September and the morning of Monday the 21st of September. Even then, you’re looking at ankle-to-knee high slop with a cross-off wind. For a spot that rarely breaks, you need everything to click, and nothing is clicking here. For now, the setup looks more interesting for kite surfing than paddle surfing. It’s a tough one.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Sat night. Warm (max 28°C on Thu morning, min 27°C on Thu night). Mainly fresh winds. | Days 4-6 Weather SummaryModerate rain (total 18mm), heaviest on Sun morning. Warm (max 28°C on Sun afternoon, min 27°C on Sun morning). Mainly fresh winds. | ||||||||||||||||||||
Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | |||||||||||||||
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) | SE 9 | SE 9 | ESE 9 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 7 | SE 14 | ESE 8 | SE 8 | ESE 13 | SE 8 | ESE 8 | SE 13 | ESE 8 | ESE 12 | ESE 12 | ESE 8 | ESE 8 | ESE 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 21 | 21 | 8 | 0 | 0 | 0 | 0 | 0 | 7 | 27 | 91 | 16 | 64 | 114 | 42 | 40 | 14 | 14 | 46 | 47 | 52 |
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 | cross-off | cross-off | cross-off | cross-off |
High Tide | 3:21PM0.76m | 3:26AM0.85m | 3:52PM0.79m | 4:10AM0.82m | 4:22PM0.80m | 4:51AM0.78m | 4:51PM0.79m | 5:31AM0.71m | 5:20PM0.77m | 6:12AM0.64m | 5:50PM0.74m | 6:56AM0.56m | 6:22PM0.69m | ||||||||
Low Tide | 9:09AM0.11m | 9:15PM0.19m | 9:44AM0.14m | 9:56PM0.15m | 10:17AM0.17m | 10:36PM0.13m | 10:47AM0.22m | 11:16PM0.12m | 11:16AM0.26m | 11:56PM0.13m | 11:43AM0.30m | 00:39AM0.16m | 12:09PM0.34m | 1:28AM0.19m | |||||||
 | |  |  | |  | | |  |  | | | | | | | | | | | | |
 | 5:47 | — | — | 5:47 | — | — | 5:47 | — | — | 5:47 | — | — | 5:47 | — | — | 5:47 | — | — | 5:47 | — | — |
 | — | 6:02 | — | — | 6:01 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 5:59 | — | — | 5:59 | — |
mm | — | — | — | — | — | — | — | — | 5 | 4 | 1 | 9 | 1 | 2 | — | — | — | 1 | — | — | 3 |
Temp °C | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 28 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
Feels °C | 28 | 28 | 28 | 26 | 26 | 27 | 27 | 27 | 26 | 26 | 28 | 28 | 26 | 27 | 28 | 28 | 28 | 29 | 28 | 28 | 29 |
Swell 1 Height (m) Direction Period (s) | NNE 11 | SE 9 | NNE 10 | N 9 | NNE 10 | N 9 | N 8 | N 8 | N 8 | ENE 10 | SE 8 | ENE 9 | SE 8 | ESE 8 | ENE 9 | ESE 8 | ENE 9 | ESE 12 | ESE 8 | ESE 8 | ESE 9 |
| kJ | 45 | 21 | 20 | 7 | 10 | 6 | 13 | 5 | 5 | 35 | 91 | 33 | 64 | 114 | 15 | 40 | 7 | 14 | 46 | 47 | 52 |
Swell 2 Height (m) Direction Period (s) | SE 9 | NNE 11 | ESE 9 | NNE 10 | N 9 | NNE 10 | NE 9 | NE 10 | NNE 11 | ESE 8 | ENE 9 | ESE 13 | NE 9 | ESE 13 | SE 13 | ENE 9 | ESE 12 | NNE 10 | SE 11 | ESE 11 | SE 11 |
| kJ | 21 | 23 | 8 | 10 | 6 | 9 | 3 | 4 | 12 | 27 | 35 | 16 | 21 | 16 | 42 | 15 | 14 | 18 | 32 | 13 | 5 |
Swell 3 Height (m) Direction Period (s) | N 8 | N 11 | N 10 | N 13 | N 13 | N 12 | N 12 | N 12 | SE 14 | N 8 | N 7 | N 7 | ESE 13 | NNE 12 | NNE 11 | ESE 12 | NNE 10 | — | NNE 8 | N 8 | N 15 |
| kJ | 1 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 7 | 5 | 4 | 4 | 16 | 13 | 11 | 14 | 11 | — | 7 | 1 | 4 |
Wind waves Height (m) Direction Period (s) | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 7 | E 7 | E 7 | ENE 7 | E 7 | ENE 7 | ENE 7 | E 7 | E 7 | E 7 | E 7 | ENE 7 | E 6 | E 7 |
| kJ | 350 | 294 | 373 | 427 | 395 | 375 | 329 | 279 | 343 | 247 | 167 | 242 | 178 | 181 | 222 | 214 | 261 | 247 | 152 | 123 | 267 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 765 | 821 | 765 | 848 | 427 | 767 | 848 | 848 | 313 | 848 | 8 | 8 | 848 | 259 | 259 | 848 | 259 | 765 | 313 | 251 | 313 |
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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