Surf Forecasts:
The Boiler surf forecast from 6 Sep 2026:
- Most powerful swell: Monday 7 Sep, 10AM (local time) - 5ft (1.6m), 14s period, WSW swell with 926 kJ wave energy.
Best Forecast Surf Conditions for The Boiler this week:
The most powerful waves expected at The Boiler in the next 16 days are 1.6m 14s and forecast to arrive on Monday (Sep 07) at 10AM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10AM (Mon 7th Sep) | 5ft (1.6m) 14s |
Table - best surf conditions forecast for The Boiler over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s take a hard look at what’s on offer for The Boiler over the next couple of weeks. Straight up, it’s a grim stretch – nothing’s lining up for a proper surf. The Boiler is an inconsistent reef break that only works on a decent swell, and we just aren’t getting one. The whole 16-day window is one long, flat spell of poor surf.
We kick off on Sunday the 6th with nothing. Waves are a weak 2 ft from the WSW with a short 6-second period and a combined energy of just 44 – that’s barely a ripple. Winds are cross-on and choppy, making it a total write-off. Monday the 7th sees a spike in the swell height to 5 ft, and the period jumps to 14 seconds which screams groundswell, with energy bumping to 1234. The morning has some clean cross-off wind from the NW, which would usually be a massive positive, but the forecast says "marginal" – likely a tide or bank issue. It’s the best we get, but that’s not saying much.
From Tuesday the 8th onward, it’s all downhill. Swell drops back under 6 ft, the period crashes to 7-8 seconds, and the wind is either cross or onshore for the rest of the run. There’s a brief moment on Friday the 11th morning with 3 ft, 9-second period WSW swell, light WNW cross-off wind, and clean conditions – energy is 169 – but it’s still described as just "ordinary." Not worth paddling out for.
Tuesday the 15th sees a little pulse: 7 ft from the WSW at 7 seconds with a clean cross-off wind in the afternoon. Energy hits 359, but the 7-second period means weak, lumpy waves. That’s a kite-surfing setup if I’ve ever seen one, not a surfer’s wave. After that, it’s flat and choppy all the way to the end. The final days are glassy but tiny – 1.0 ft to 2 ft – with barely any energy.
Honestly, the only day worth a look is Monday the 7th morning. That 5 ft, 14-second WSW groundswell with clean cross-off wind might offer a few lined-up waves on a good tide. But with The Boiler being inconsistent, that’s a gamble. For the rest of the 16 days, leave the board at home. This place is a desert right now.
Best on offer: Monday the 7th morning at The Boiler – 5 ft, WSW swell at 14 seconds, clean cross-off winds. It’s the only flash of quality in a very long, quiet stretch.
Rusty.
Short Range ForecastLight rain (total 6mm), mostly falling on Mon night. Warm (max 23°C on Sun afternoon, min 13°C on Tue night). Winds increasing (light winds from the SE on Sun afternoon, strong winds from the SW by Mon night). | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Wed night. Very mild (max 18°C on Thu afternoon, min 14°C on Wed morning). Winds decreasing (fresh winds from the WNW on Wed morning, light winds from the SE by Fri night). | ||||||||||||||||||||
Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | |||||||||||||||
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) | W 6 | WSW 6 | WSW 6 | WSW 14 | WSW 13 | WSW 6 | WSW 8 | WSW 8 | W 7 | W 7 | W 7 | WSW 6 | WSW 7 | WSW 6 | W 8 | WSW 9 | WSW 9 | WSW 8 | WSW 8 | WSW 7 | WSW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 19 | 45 | 47 | 926 | 828 | 419 | 588 | 497 | 330 | 276 | 168 | 35 | 84 | 170 | 195 | 202 | 137 | 68 | 33 | 413 | 434 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-off | cross | cross-on | cross | cross | cross-off | cross-off | cross | cross | on | cross-on | cross-on | cross | cross-on | cross-on | on | cross-on | cross |
High Tide | 2:22PM7.24m | 3:19AM7.32m | 3:58PM7.71m | 4:43AM7.95m | 5:11PM8.48m | 5:45AM8.68m | 6:07PM9.17m | 6:36AM9.24m | 6:54PM9.63m | 7:20AM9.57m | 7:36PM9.85m | 7:58AM9.68m | 8:13PM9.85m | ||||||||
Low Tide | 8:54PM3.32m | 9:37AM3.19m | 10:26PM2.71m | 10:56AM2.48m | 11:34PM1.96m | 11:54AM1.77m | 00:27AM1.35m | 12:42PM1.26m | 1:11AM0.99m | 1:23PM0.98m | 1:50AM0.87m | 1:58PM0.91m | 2:22AM0.93m | ||||||||
 |  |  |  | |  | | |  | | |  | |  | |  | | | | | | |
 | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:41 | — | — | 6:43 | — | — | 6:45 | — | — |
 | — | 7:52 | — | — | 7:50 | — | — | 7:47 | — | — | 7:45 | — | — | 7:43 | — | — | 7:40 | — | — | 7:37 | — |
mm | — | — | — | — | — | 6 | — | — | — | — | — | 1 | — | 1 | 2 | 1 | — | — | — | — | — |
Temp °C | 21 | 23 | 18 | 17 | 17 | 16 | 16 | 16 | 15 | 16 | 16 | 16 | 16 | 18 | 17 | 17 | 18 | 17 | 18 | 18 | 16 |
Feels °C | 19 | 22 | 17 | 14 | 13 | 9 | 9 | 9 | 8 | 10 | 10 | 14 | 12 | 15 | 14 | 15 | 17 | 18 | 17 | 14 | 13 |
Swell 1 Height (m) Direction Period (s) | W 6 | WSW 6 | WSW 17 | WSW 14 | W 13 | — | — | — | — | — | — | WSW 6 | W 12 | W 11 | W 8 | WSW 9 | WSW 9 | WSW 8 | WSW 8 | — | WSW 8 |
| kJ | 19 | 45 | 28 | 926 | 747 | — | — | — | — | — | — | 35 | 3 | 2 | 195 | 202 | 137 | 68 | 33 | — | 434 |
Swell 2 Height (m) Direction Period (s) | WSW 9 | SW 13 | — | WSW 14 | — | — | — | — | — | — | — | WSW 8 | W 12 | — | — | — | — | — | — | — | — |
| kJ | 16 | 6 | — | 308 | — | — | — | — | — | — | — | 33 | 3 | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | SW 13 | — | — | — | — | — | — | — | — | — | — | W 13 | W 12 | — | — | — | — | — | — | — | — |
| kJ | 7 | — | — | — | — | — | — | — | — | — | — | 3 | 3 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | S 2 | WSW 6 | — | WSW 13 | WSW 6 | WSW 8 | WSW 8 | W 7 | W 7 | W 7 | — | WSW 7 | WSW 6 | — | — | — | — | SW 4 | WSW 7 | — |
| kJ | — | 1 | 47 | — | 828 | 419 | 588 | 497 | 330 | 276 | 168 | — | 84 | 170 | — | — | — | — | 16 | 413 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 19 | 253 | 253 | 122 | 9 | 138 | 138 | 120 | 227 | 151 | 151 | 308 | 138 | 133 | 308 | 133 | 0 | 120 | 0 | 48 | 133 |
Best forecast wave conditions in Wales - Gower | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Information about the The Boiler Surf forecast
The above surf forecast table for The Boiler provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at The Boiler can be found by selecting the local surf guide option on the grey menu. Our The Boiler 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 (The Boiler) 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 The Boiler 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.
The Boiler is 9 km (6 miles) from Swansea. If you plan a holiday in Wales - Gower, look for hotels and other accommodation in Swansea. Swansea has rooms for a wide range of budgets as well as car hire and transport links.
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