Surf Forecasts:
Thunder surf forecast from 1 Sep 2026:
- Most powerful swell: Sunday 6 Sep, 11PM (local time) - 3.5ft (1.1m), 7s period, SE swell with 115 kJ wave energy.
Best Forecast Surf Conditions for Thunder this week:
The most powerful waves expected at Thunder in the next 16 days are 1.1m 7s and forecast to arrive on Sunday (Sep 06) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 7s period and expected on Monday (Sep 07) at 11PM.
| Wave Type | Time (AST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (Sun 6th Sep) | 3.5ft (1.1m) 7s |
Table - best surf conditions forecast for Thunder over the next 16 days.
The Lowdown
Alright, let’s talk about Thunder. It’s a reef setup, but honestly, for the next 16 days, it’s pretty grim. We’ve got a solid run of poor surf conditions with no real standout days. The first few days of September are showing tiny waves, mostly around 2ft from the SE, with a short period of 8 seconds. That’s weak, messy energy – combined energy readings are in the 50s and 60s (57, 70, 47), which is real low. The wind is cross-off from the east, so it’s not terrible, but the swell just isn’t there.
The water temp is about 85°F, which is pretty normal for this time of year, so at least you won’t be freezing while you’re waiting for a wave.
From the 7th of September, it flatlines completely for several days – no swell at all, just zero energy. That’s a gap of about 4 days with nothing. Then around the 11th, we get a tiny hiccup of 0.7ft, and again on the 13th a little 2ft shows up, but it’s still poor. The 15th gives us a slight bump in energy on the afternoon with 2ft and a period of 10 seconds, hitting 126 combined energy – that’s moderate, but still not enough to get excited about. The 16th has 3ft with a 9-second period and 101 energy, but again, poor surf conditions across the board.
This break rarely breaks anyway, and that’s exactly what we’re seeing. It’s inconsistent by nature. A couple of those days in the second week have a longer period – like the 11-second one on the 15th morning – but the swell is tiny, so it’s just a tease. The wind stays cross-off, but it’s often 15 to 22 mph, which is a fresh breeze, so it’s not doing any favors.
Honestly, there’s nothing here worth paddling out for. This is a blank run, and for a spot like Thunder, that’s not unusual. Forecasts can change, but right now, I’d leave the board in the car.
Rusty.
Short Range ForecastSome drizzle, heaviest during Thu night. Warm (max 28°C on Tue morning, min 27°C on Tue night). Mainly fresh winds. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Fri afternoon. Warm (max 29°C on Sat afternoon, min 27°C on Fri night). Mainly fresh winds. | ||||||||||||||||||||
Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 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) | SE 8 | SE 7 | SE 8 | ESE 8 | SE 8 | SE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 8 | SSE 8 | ESE 8 | E 7 | E 7 | E 7 |
Wave Graph | |||||||||||||||||||||
57 | 42 | 49 | 47 | 57 | 58 | 48 | 47 | 39 | 39 | 46 | 49 | 53 | 53 | 44 | 47 | 6 | 41 | 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 | cross-off | cross-off | cross-off | cross-off |
High Tide | 6:00PM0.77m | 6:52AM0.62m | 6:39PM0.75m | 7:55AM0.55m | 7:28PM0.73m | 9:25AM0.51m | 8:35PM0.70m | 11:24AM0.51m | 10:06PM0.69m | 12:48PM0.55m | 11:38PM0.72m | 1:37PM0.61m | 00:51AM0.77m | ||||||||
Low Tide | 11:48AM0.27m | 00:40AM0.16m | 12:22PM0.31m | 1:39AM0.16m | 1:02PM0.36m | 2:54AM0.17m | 2:01PM0.40m | 4:24AM0.17m | 3:43PM0.43m | 5:49AM0.15m | 5:30PM0.42m | 6:55AM0.12m | 6:46PM0.37m | ||||||||
5:47 | — | — | 5:47 | — | — | 5:47 | — | — | 5:47 | — | — | 5:47 | — | — | 5:47 | — | — | 5:47 | — | — | |
— | 6:08 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:06 | — | — | 6:06 | — | — | 6:05 | — | |
mm | — | — | — | — | — | — | — | — | 1 | — | 1 | — | — | 1 | 1 | — | — | — | — | — | — |
Temp °C | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 27 |
Feels °C | 28 | 28 | 28 | 29 | 29 | 29 | 30 | 29 | 29 | 28 | 29 | 30 | 29 | 31 | 30 | 28 | 27 | 29 | 27 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | SE 8 | ENE 8 | SE 8 | ESE 8 | SE 8 | SE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | SSE 8 | ESE 8 | — | N 8 | N 9 |
57 | 131 | 49 | 47 | 57 | 58 | 78 | 92 | 83 | 118 | 81 | 94 | 99 | 134 | 144 | 111 | 6 | 41 | — | 1 | 2 | |
Swell 2 Height (m) Direction Period (s) | N 10 | SE 7 | N 10 | N 9 | N 9 | NNE 7 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 8 | N 8 | N 8 | — | — | N 11 |
8 | 42 | 8 | 2 | 2 | 5 | 48 | 47 | 39 | 39 | 46 | 49 | 53 | 53 | 44 | 47 | 1 | 1 | — | — | 3 | |
Swell 3 Height (m) Direction Period (s) | N 10 | ESE 8 | N 12 | N 12 | N 11 | N 11 | NNE 11 | N 11 | NNE 10 | NNE 10 | N 10 | N 9 | N 9 | N 9 | N 8 | N 8 | — | — | — | — | — |
8 | 28 | 3 | 3 | 3 | 2 | 12 | 9 | 11 | 10 | 8 | 2 | 2 | 2 | 1 | 1 | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | ENE 8 | — | ENE 7 | E 7 | ENE 7 | ENE 7 | ENE 3 | — | SE 4 | SE 5 | — | — | SE 4 | SE 5 | SE 5 | SE 6 | E 8 | E 7 | E 7 | E 7 | E 7 |
192 | — | 97 | 106 | 73 | 43 | 1 | — | 4 | 8 | — | — | 9 | 17 | 38 | 71 | 309 | 230 | 279 | 295 | 339 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 427 | 8 | 8 | 8 | 8 | 8 | 8 | 235 | 263 | 8 | 251 | 27 | 258 | 27 | 27 | 263 | 430 | 430 | 813 | 813 | 477 |
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.











