Surf Forecasts:
The Boiler surf forecast from 1 Sep 2026:
- Best quality surf: Friday 4 Sep, 10AM (local time) - 6ft (1.8m), 7s period, WSW swell with cross-offshore winds.
- Most powerful swell: Tuesday 8 Sep, 7AM (local time) - 8ft (2.5m), 9s period, WSW swell with 1,124 kJ wave energy.
- Next surfable swell (1★+): Friday 4 Sep, 10AM (local time) - 6ft (1.8m), 7s period with WSW 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 Friday (Sep 04) at 10AM. The primary swell is predicted to be 1.8m and 7s period with a secondary swell of 0.1m and 15s. 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 2.5m 9s and forecast to arrive on Tuesday (Sep 08) at 7AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 5s period and expected on Monday (Sep 07) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Fri 4th Sep) | 6ft (1.8m) 7s |
| Best Surf | 10AM (Fri 4th Sep) | 6ft (1.8m) 7s |
| Most Powerful | 7AM (Tue 8th Sep) | 8ft (2.5m) 9s |
Table - best surf conditions forecast for The Boiler over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s be straight with you: the next couple of weeks look pretty grim for the Boiler. It’s a reef set-up that’s inconsistent at the best of times, and there’s just nothing in the forecast that’s going to get the heart pumping. We’re looking at over a week of poor conditions right off the bat.
The first session that’s even worth a look is on Friday the 4th of September. The morning brings a WSW swell of 6ft, with a period of 7 seconds, and a WNW cross-offshore breeze that’ll keep things clean. The combined energy of all swells is moderate at 357. It’s not perfect, but it’s the best we’ve seen for a while. The water temp is a very unusual 68°, which is a massive 7° warmer than normal for this time of year. That’s a real standout. The session is scored high enough to be a highlight, but don’t expect the world.
Then we get a brief, almost glassy moment on Saturday morning the 5th. The swell drops right back to 2ft from the WSW, with a 9-second period, and the wind goes dead calm. The combined energy is weak at 90. It’s surfable, but very ordinary. The afternoon is a write-off.
After that, it’s back to the doldrums. Nothing worth paddling out for until Monday the 14th of September. The afternoon shows a 5ft swell from the west with a 7-second period, and the wind goes glassy again. Combined energy is moderate at 245. It’s another surfable but ordinary session. The morning of the 15th has a 4ft west swell with a 7-second period, but the wind is onshore, which ruins it.
Look, for a reef that’s already inconsistent, this is a tough run. The only real standouts are the clean Friday morning on the 4th and the glassy sessions on the 5th and the 14th. The rest is a write-off. Don’t hold your breath.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Tue night. Very mild (max 19°C on Wed afternoon, min 16°C on Tue night). Winds increasing (light winds from the WSW on Tue night, strong winds from the WSW by Thu night). | Days 4-6 Weather SummarySome drizzle, heaviest during Fri morning. Very mild (max 19°C on Sun afternoon, min 13°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
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) | W 9 | WSW 5 | WSW 5 | SW 5 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 8 | W 8 | WSW 9 | WSW 9 | WSW 9 | W 9 | WSW 6 | SW 5 | W 8 | W 12 | WSW 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 39 | 50 | 34 | 64 | 306 | 305 | 265 | 242 | 222 | 349 | 181 | 131 | 82 | 92 | 47 | 41 | 21 | 34 | 147 | 546 | 855 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross | cross-on | cross-on | cross-off | cross-off | cross-off | glassy | cross | glassy | cross-on | cross | cross-on | cross-on | cross-on | cross |
High Tide | 9:48PM9.24m | 10:01AM8.93m | 10:23PM8.83m | 10:38AM8.51m | 11:04PM8.29m | 11:24AM7.96m | 00:02AM7.65m | 12:36PM7.40m | 1:34AM7.19m | 2:22PM7.24m | 3:19AM7.32m | 3:58PM7.71m | |||||||||
Low Tide | 3:24PM1.39m | 3:45AM1.48m | 3:57PM1.70m | 4:20AM1.90m | 4:35PM2.16m | 5:02AM2.45m | 5:26PM2.76m | 6:02AM3.09m | 6:51PM3.32m | 7:47AM3.49m | 8:54PM3.32m | 9:37AM3.19m | 10:26PM2.71m | ||||||||
 |  |  |  |  |  |  | |  | | |  | | |  | | | | | | | |
 | 6:26 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:33 | — | — | 6:35 | — | — | 6:37 | — | — |
 | — | 8:02 | — | — | 8:00 | — | — | 7:59 | — | — | 7:57 | — | — | 7:53 | — | — | 7:52 | — | — | 7:50 | — |
mm | — | — | 1 | 1 | 1 | — | — | — | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 17 | 17 | 17 | 19 | 18 | 19 | 18 | 19 | 16 | 17 | 16 | 15 | 16 | 15 | 17 | 19 | 17 | 18 | 18 | 16 |
Feels °C | 14 | 12 | 15 | 12 | 15 | 16 | 17 | 15 | 14 | 14 | 12 | 13 | 13 | 14 | 14 | 15 | 17 | 16 | 16 | 15 | 14 |
Swell 1 Height (m) Direction Period (s) | W 9 | W 18 | W 8 | SW 16 | — | W 15 | SW 15 | SW 16 | W 15 | SW 15 | WSW 8 | W 8 | WSW 9 | WSW 9 | WSW 9 | W 9 | WSW 6 | WSW 8 | W 8 | W 12 | — |
| kJ | 39 | 6 | 11 | 10 | — | 4 | 9 | 9 | 5 | 8 | 181 | 131 | 82 | 92 | 47 | 41 | 21 | 7 | 147 | 546 | — |
Swell 2 Height (m) Direction Period (s) | — | — | SW 16 | W 16 | — | — | — | — | — | — | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | WSW 9 | SW 12 | WSW 13 | — | — |
| kJ | — | — | 10 | 5 | — | — | — | — | — | — | 8 | 8 | 8 | 7 | 7 | 7 | 8 | 6 | 96 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | W 16 | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 13 | — | — | — | — |
| kJ | — | — | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 6 | WSW 5 | WSW 5 | SW 5 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | — | — | — | — | — | SE 2 | SSE 3 | SW 5 | WNW 5 | — | WSW 11 |
| kJ | 37 | 50 | 34 | 64 | 306 | 305 | 265 | 242 | 222 | 349 | — | — | — | — | — | 2 | 1 | 34 | 25 | — | 855 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 133 | 147 | 101 | 416 | 320 | 147 | 133 | 308 | 360 | 0 | 144 | 0 | 0 | 56 | 13 | 20 | 253 | 135 | 133 | 133 | 138 |
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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