Surf Forecasts:
The Boiler surf forecast from 5 Aug 2026:
- Best quality surf: Thursday 6 Aug, 10AM (local time) - 3.5ft (1.0m), 6s period, W swell with cross-offshore winds.
- Most powerful swell: Wednesday 5 Aug, 4PM (local time) - 5ft (1.6m), 7s period, WSW swell with 225 kJ wave energy.
- Next surfable swell (1★+): Thursday 6 Aug, 10AM (local time) - 3.5ft (1.0m), 6s period with W swell.
Best Forecast Surf Conditions for The Boiler this week:
The surf forecast for The Boiler over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 06) at 10AM. The primary swell is predicted to be 1.0m and 6s period with a secondary swell of 0.1m and 10s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at The Boiler in the next 16 days are 1.6m 7s and forecast to arrive on Wednesday (Aug 05) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Thu 6th Aug) | 3.5ft (1.0m) 6s |
| Best Surf | 10AM (Thu 6th Aug) | 3.5ft (1.0m) 6s |
| Most Powerful | 4PM (Wed 5th Aug) | 5ft (1.6m) 7s |
Table - best surf conditions forecast for The Boiler over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at the outlook for The Boiler.
To be straight with you, this is a rough stretch. The Boiler is an inconsistent reef setup, and across this 16-day window, there’s a long, painful gap with barely a ripple. For the first week and a half, from Wednesday the 5th of August right through to Sunday the 16th of August, it’s a write-off. The swell is tiny, the period is short, and the wind is nearly always messy. There’s a little bump of energy on Thursday the 13th afternoon, with a 4ft swell from the WSW and a period of 10 seconds, hitting a combined energy of 444 (moderate), but the wind is cross, lumpy, and the conditions are still poor. It’s not worth paddling out for.
Now, there is one standout, but you have to wait. The 17th of August, Monday morning, looks like a serious pulse. The swell comes up to 12ft from the WSW with a 11-second period, and the combined energy is a massive 2749 (very strong). The wind is cross-off at 25 km/h, keeping it clean. But here’s the thing – that’s way too big for this place. The Boiler is a reef, and over 8ft is expert territory only. This is a big, powerful groundswell (long period over 11 seconds), and it’s going to be heavy and dangerous. If you’re not a seasoned pro, you’ve got no business being out there. That afternoon, it drops to 8ft but the wind goes cross and lumpy, so the window is narrow.
After that, it drops back down to small, poor surf for the rest of the window. The 19th of August Wednesday morning has a clean 4ft from the WSW with cross-off wind and a combined energy of 311 (moderate), but it’s still just a small, average day.
So, the only real standout is that Monday the 17th of August morning, but it’s a beast. For the rest of the period, you’re better off waiting for the next forecast. It’s a long, quiet run, but that’s how it goes for an inconsistent reef like this.
Rusty.
Short Range ForecastMostly dry. Very mild (max 17°C on Wed afternoon, min 13°C on Wed night). Winds decreasing (fresh winds from the W on Wed afternoon, calm by Thu night). | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Sun afternoon, min 14°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | |||||||||||||||
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) | WSW 7 | WSW 7 | W 6 | W 6 | WSW 6 | WSW 5 | W 9 | W 9 | SW 12 | W 9 | WSW 8 | WSW 7 | WSW 7 | WSW 4 | W 5 | WSW 6 | WSW 6 | WSW 5 | WSW 6 | W 6 | W 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 163 | 225 | 89 | 76 | 45 | 9 | 7 | 6 | 5 | 6 | 14 | 30 | 26 | 21 | 59 | 50 | 31 | 10 | 8 | 7 | 3 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-off | cross-off | cross | off | on | cross | off | glassy | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | off | cross-on | glassy | cross-off |
High Tide | 11:05AM8.34m | 11:30PM8.31m | 11:51AM7.95m | 00:25AM7.86m | 12:55PM7.55m | 1:42AM7.49m | 2:26PM7.40m | 3:17AM7.49m | 3:58PM7.72m | 4:41AM7.93m | 5:13PM8.36m | 5:50AM8.55m | 6:15PM9.02m | ||||||||
Low Tide | 5:02PM2.18m | 5:31AM2.32m | 5:52PM2.60m | 6:29AM2.77m | 7:06PM3.01m | 7:54AM3.09m | 8:47PM3.09m | 9:32AM2.97m | 10:18PM2.69m | 10:52AM2.46m | 11:32PM2.07m | 11:58AM1.85m | 00:33AM1.47m | ||||||||
 |  |  | | |  | | | | | | | | | | | | | | | | |
 | 5:43 | — | — | 5:46 | — | — | 5:47 | — | — | 5:48 | — | — | 5:50 | — | — | 5:52 | — | — | 5:54 | — | — |
 | — | 8:58 | — | — | 8:55 | — | — | 8:53 | — | — | 8:52 | — | — | 8:51 | — | — | 8:49 | — | — | 8:46 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 17 | 17 | 16 | 17 | 15 | 16 | 17 | 16 | 19 | 20 | 18 | 21 | 22 | 18 | 19 | 20 | 18 | 19 | 22 | 21 |
Feels °C | 11 | 10 | 12 | 11 | 12 | 12 | 14 | 14 | 15 | 17 | 16 | 16 | 17 | 18 | 16 | 15 | 16 | 16 | 16 | 21 | 18 |
Swell 1 Height (m) Direction Period (s) | — | — | W 11 | W 6 | W 10 | WSW 5 | WSW 5 | W 9 | W 4 | W 9 | WSW 8 | WSW 7 | WSW 7 | — | — | WSW 6 | W 8 | WSW 5 | WSW 6 | W 6 | W 6 |
| kJ | — | — | 2 | 76 | 8 | 9 | 5 | 6 | 1 | 6 | 14 | 30 | 26 | — | — | 50 | 1 | 10 | 8 | 7 | 3 |
Swell 2 Height (m) Direction Period (s) | — | — | W 13 | W 10 | — | W 10 | W 9 | W 6 | W 9 | — | — | — | — | — | — | — | — | W 8 | SW 6 | SW 6 | W 10 |
| kJ | — | — | 3 | 2 | — | 7 | 7 | 1 | 2 | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SW 12 | W 12 | — | SW 12 | — | — | — | — | — | — | — | — | SW 6 | W 10 | W 10 | SW 6 |
| kJ | — | — | — | — | — | 6 | 3 | — | 5 | — | — | — | — | — | — | — | — | 2 | 2 | 2 | 1 |
Wind waves Height (m) Direction Period (s) | WSW 7 | WSW 7 | W 6 | — | WSW 6 | — | — | W 5 | — | — | — | — | — | WSW 4 | W 5 | — | WSW 6 | — | — | — | — |
| kJ | 163 | 225 | 89 | — | 45 | — | — | 4 | — | — | — | — | — | 21 | 59 | — | 31 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 419 | 632 | 360 | 0 | 442 | 350 | 352 | 368 | 368 | 201 | 189 | 14 | 189 | 205 | 6 | 360 | 205 | 189 | 349 | 421 | 189 |
Best forecast wave conditions in Wales - Gower | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our The Boiler 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 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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