
Surf Forecasts:
The Boiler surf forecast from 3 Sep 2026:
- Best quality surf: Saturday 5 Sep, 7AM (local time) - 3.5ft (1.1m), 7s period, W swell with cross-offshore winds.
- Most powerful swell: Monday 7 Sep, 1PM (local time) - 6ft (1.9m), 13s period, WSW swell with 1,139 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 7AM (local time) - 3.5ft (1.1m), 7s 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 Saturday (Sep 05) at 7AM. The primary swell is predicted to be 1.1m and 7s period with a secondary swell of 0.5m and 9s. 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 1.9m 13s and forecast to arrive on Monday (Sep 07) at 1PM. 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+) | 7AM (Sat 5th Sep) | 3.5ft (1.1m) 7s |
| Best Surf | 7AM (Sat 5th Sep) | 3.5ft (1.1m) 7s |
| Most Powerful | 1PM (Mon 7th Sep) | 6ft (1.9m) 13s |
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 what's on the menu for The Boiler over the next couple of weeks. I gotta be straight with ya, it’s a bit of a slow burn. We’ve got a long wait ahead with not much to get excited about for the first few days.
We start on Thursday, September 3rd, and frankly, it's a write-off. We've got 5ft of messy, short-period swell from the WSW, but a solid 16 mph cross and cross-onshore wind is just chopping it all up. The water is sitting at a balmy 68°, which is a whopping 7° warmer than usual for this time of year – that's a weird one, feels more like a late summer dip than a surf session. The energy is moderate at 252, but it's not gonna matter with that wind. Conditions stay poor right through Friday, even with a bit more size (7ft) and 517 in energy, the wind is just too strong.
Saturday the 5th brings a slight reprieve. The swell drops right back to 3ft, but the wind goes light, swinging cross-offshore in the morning. The energy is weak (120), so it's small and a bit gutless, but it'll be the cleanest we've seen. You could go for a paddle if you're desperate, but it's "very ordinary" as they say.
Then we hit a dead zone. From Saturday afternoon through to Sunday the 13th, it’s just a long stretch of junk – small, weak swell with onshore or cross winds making a mess of things. There's a brief flicker of hope on Monday the 7th, with a pulse of 6ft swell carrying a very long 13-second period from the WSW. The energy is massive, 2033! But... the *Friday morning* conditions on the 7th look clean, and it’s a reef break, so that long period could actually set up some nice lines here. The score is low though, a 3 out of 10, so don't get your hopes up too high.
The only real standout window I can see, and I'm saying this with cautious optimism, is the following Monday morning, September 14th. We get a light offshore breeze from the north, with 4ft of waist-to-chest high swell from the WSW. The period is a decent 9 seconds, giving it a bit of push, with 254 in energy. The wind will be clean, and for The Boiler, a light offshore is a beautiful thing. It’s not huge, it’s not epic, but it's the best offer on the table in this whole 16-day window. Keep in mind, this is a reef break and it’s inconsistent, so you might be waiting a while between sets, but the crowds are only "sometimes" a problem. Tuesday the 15th morning looks glassy with tiny 3ft waves but also flat energy.
After that, it fades into the sunset. The second week is a write-off with tiny, weak leftover swell and more wind. The energy barely gets into double digits from the 17th onward. If you're a kite surfer, the strong cross winds on the 8th and 11th might look alright, but for paddle surfing, it's a no-go.
Signing off,
Rusty
Short Range ForecastLight rain (total 3mm), mostly falling on Fri morning. Warm (max 21°C on Sun morning, min 13°C on Fri night). Winds decreasing (strong winds from the SW on Thu night, calm by Sat night). | Days 5-7 Weather SummaryModerate rain (total 11mm), heaviest on Mon night. Warm (max 24°C on Sun afternoon, min 12°C on Mon night). Winds increasing (light winds from the SW on Sun afternoon, strong winds from the W by Tue morning). | |||||||||||||||||||
Thu 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | ||||||||||||||
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 8 | WSW 6 | W 8 | WSW 8 | WSW 7 | WSW 7 | WSW 7 | WSW 9 | W 9 | WSW 6 | SW 5 | WSW 11 | WSW 12 | WSW 8 | WSW 9 | WSW 9 | W 8 | WSW 7 | WSW 7 | WSW 7 |
Wave Graph | ||||||||||||||||||||
256 | 341 | 535 | 373 | 203 | 75 | 73 | 68 | 40 | 31 | 60 | 672 | 1016 | 636 | 708 | 627 | 566 | 327 | 326 | 310 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | cross | cross-on | cross | cross | cross | cross-off | cross | on |
High Tide | 11:04PM8.29m | 11:24AM7.96m | 00:02AM7.65m | 12:36PM7.40m | 1:34AM7.19m | 2:22PM7.24m | 3:19AM7.32m | 3:58PM7.71m | 4:43AM7.95m | 5:11PM8.48m | 5:45AM8.68m | 6:07PM9.17m | ||||||||
Low Tide | 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 | 10:56AM2.48m | 11:34PM1.96m | 11:54AM1.77m | 00:27AM1.35m | |||||||
— | — | 6:31 | — | — | 6:33 | — | — | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | |
7:59 | — | — | 7:57 | — | — | 7:53 | — | — | 7:52 | — | — | 7:50 | — | — | 7:47 | — | — | 7:45 | — | |
mm | — | 1 | 2 | — | — | — | — | — | — | — | 1 | — | — | 8 | 1 | 1 | — | — | 1 | 8 |
Temp °C | 18 | 19 | 17 | 17 | 16 | 15 | 15 | 15 | 21 | 24 | 18 | 17 | 16 | 16 | 15 | 16 | 15 | 16 | 16 | 17 |
Feels °C | 14 | 13 | 13 | 11 | 11 | 13 | 12 | 14 | 17 | 20 | 15 | 13 | 11 | 11 | 7 | 8 | 8 | 10 | 11 | 15 |
Swell 1 Height (m) Direction Period (s) | — | — | SW 15 | SW 14 | SW 14 | WSW 7 | WSW 7 | WSW 9 | W 9 | WSW 6 | W 17 | WSW 13 | — | W 10 | — | — | W 8 | — | — | — |
— | — | 8 | 8 | 8 | 75 | 73 | 68 | 40 | 31 | 6 | 141 | — | 225 | — | — | 409 | — | — | — | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | W 16 | W 9 | SW 14 | SW 13 | SW 13 | SW 13 | W 18 | — | — | — | — | — | — | — | — | — |
— | — | — | — | 5 | 43 | 7 | 7 | 7 | 6 | 6 | — | — | — | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | W 14 | SW 14 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | 4 | 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | WSW 8 | WSW 6 | W 8 | WSW 8 | WSW 7 | — | WSW 6 | — | SE 3 | SSE 3 | SW 5 | WSW 11 | WSW 12 | WSW 8 | WSW 9 | WSW 9 | W 8 | WSW 7 | WSW 7 | WSW 7 |
256 | 341 | 535 | 373 | 203 | — | 28 | — | 2 | 4 | 60 | 672 | 1016 | 636 | 708 | 627 | 566 | 327 | 326 | 310 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 308 | 175 | 151 | 360 | 48 | 0 | 133 | 14 | 48 | 20 | 101 | 9 | 320 | 178 | 644 | 360 | 367 | 367 | 147 | 262 |
Best forecast wave conditions in Wales - Gower | ||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||
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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.










