
Surf Forecasts:
The Boiler surf forecast from 28 Jul 2026:
- Most powerful swell: Tuesday 4 Aug, 1AM (local time) - 5ft (1.5m), 8s period, WSW swell with 292 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 1.5m 8s and forecast to arrive on Tuesday (Aug 04) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 4s period and expected on Saturday (Aug 01) at 10PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Tue 4th Aug) | 5ft (1.5m) 8s |
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 next couple of weeks. I gotta be straight with you – it’s quiet. Real quiet. The Boiler is the only show in town, and even then, it’s a tough watch. We’re looking at a long stretch of nothing much until the second week of August, so patience is going to be key.
The Boiler is a reef break that’s inconsistent at the best of times, and it’s not a spot you’d normally call ‘reliable’. For the first week and a bit, we’re looking at tiny, weak swell. The water temperature is sitting at 69°, which is a massive 9° warmer than normal for this time of year. That’s a real standout – it’s much warmer than you’d expect, so you can get away with a thinner suit.
From Tuesday 28 July right through to Sunday 09 August, the swell is barely a whisper. Heights are mostly below 2 ft, with periods short and energy weak. The wind is generally a problem, too – cross-on or cross, with some moderate breezes making it choppy. There are a few cleaner moments, like Thursday 30 July morning with a cross-off breeze and Saturday 01 August morning also clean, but the swell is just too small to do anything with. The combined energy is often in the low double digits (like 33, 24, 12), which is weak.
The real glimmer comes on Monday 10 August morning. We get a jump in energy to 156 (moderate), with a 3 ft swell from the WSW. Problem is, the wind is howling from the WSW at 22 mph, fresh cross-onshore, making it lumpy. Not a paddle-friendly prospect. That afternoon, it’s a strong breeze at 25 mph with a messy cross-chop. For a beach-and-reef setup like this, that’s kite-surfing conditions, not a clean paddle session.
The one true standout in this whole 16-day window is the morning of Tuesday 11 August. The swell is still only 3 ft from the WSW, but the period stretches to 8 seconds, and the energy is a moderate 96. The wind switches to a light WNW cross-off breeze, making it clean. The guidance says “surfable waves but very ordinary conditions,” scoring a 1 out of 10, but that’s the best we’ve got. It’s not a classic, but it’s clean and there’s a little bit of push. For a break that’s inconsistent and rarely delivers, you take what you can get. Crowds are possible here, so if you’re keen, get in early.
After that, the forecast drops off again into tiny, weak swell with mixed winds for the rest of the week. Overall, it’s a lean run. The Boiler is a spot that’s known for being inconsistent, so a blank spell like this isn’t unusual. Sometimes forecasts change, so keep an eye on it, but right now, I wouldn’t be holding my breath.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Tue afternoon, min 14°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Sun afternoon, min 13°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | |||||||||||||||
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 6 | W 5 | W 5 | WSW 5 | WSW 5 | W 10 | W 6 | W 5 | W 5 | W 5 | W 5 | WSW 11 | WSW 10 | WSW 9 | WSW 8 | WSW 8 | WSW 8 | WSW 9 | WSW 8 | WSW 8 | WSW 8 |
Wave Graph | |||||||||||||||||||||
33 | 20 | 13 | 9 | 8 | 8 | 39 | 36 | 20 | 12 | 13 | 12 | 18 | 26 | 24 | 13 | 13 | 46 | 62 | 76 | 292 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | glassy | cross-on | cross | cross | cross-off | cross | off | glassy | cross | cross-off | cross-off | cross | cross-off | cross | cross-on | glassy | cross-on | cross-on | cross-on |
High Tide | 6:47PM8.55m | 7:06AM8.42m | 7:24PM8.82m | 7:42AM8.66m | 7:59PM9.04m | 8:16AM8.84m | 8:33PM9.18m | 8:49AM8.96m | 9:07PM9.24m | 9:22AM8.97m | 9:40PM9.18m | 9:54AM8.86m | 10:13PM9.00m | ||||||||
Low Tide | 12:31PM2.27m | 00:51AM2.06m | 1:08PM1.99m | 1:28AM1.79m | 1:43PM1.77m | 2:03AM1.57m | 2:15PM1.60m | 2:37AM1.43m | 2:47PM1.51m | 3:09AM1.37m | 3:18PM1.51m | 3:41AM1.44m | 3:50PM1.63m | ||||||||
5:31 | — | — | 5:33 | — | — | 5:35 | — | — | 5:37 | — | — | 5:37 | — | — | 5:39 | — | — | 5:41 | — | — | |
— | — | 9:10 | — | — | 9:08 | — | — | 9:07 | — | — | 9:06 | — | — | 9:05 | — | — | 9:02 | — | — | 9:00 | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 20 | 17 | 19 | 19 | 17 | 17 | 18 | 16 | 17 | 18 | 15 | 17 | 18 | 17 | 21 | 25 | 21 | 22 | 21 | 18 |
Feels °C | 18 | 19 | 18 | 18 | 16 | 16 | 12 | 13 | 12 | 13 | 12 | 11 | 13 | 14 | 13 | 17 | 21 | 19 | 20 | 18 | 18 |
Swell 1 Height (m) Direction Period (s) | WSW 6 | W 5 | W 5 | WSW 5 | W 10 | W 10 | W 10 | W 10 | W 5 | W 5 | W 9 | W 4 | W 5 | WSW 9 | WSW 8 | WSW 8 | WSW 8 | WSW 9 | WSW 8 | WSW 8 | WSW 8 |
33 | 20 | 13 | 9 | 2 | 8 | 2 | 2 | 20 | 12 | 2 | 2 | 13 | 26 | 24 | 13 | 13 | 46 | 62 | 76 | 197 | |
Swell 2 Height (m) Direction Period (s) | — | W 8 | W 8 | W 11 | W 7 | W 6 | — | W 8 | W 9 | W 9 | W 12 | WSW 11 | WSW 10 | — | WNW 4 | — | SW 11 | — | — | — | — |
— | 1 | 1 | 2 | 1 | 1 | — | 1 | 2 | 1 | 3 | 12 | 18 | — | 3 | — | 5 | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | W 12 | W 11 | W 8 | W 8 | — | — | — | W 8 | W 8 | W 12 | W 9 | — | — | — | — | — | — | — | — | — |
— | 3 | 2 | 1 | 1 | — | — | — | 1 | 1 | 3 | 2 | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | WSW 5 | W 4 | W 6 | W 5 | — | — | W 5 | W 4 | — | W 5 | — | — | — | — | — | SW 3 | WSW 8 |
— | — | — | — | 8 | 8 | 39 | 36 | — | — | 13 | 4 | — | 11 | — | — | — | — | — | 5 | 292 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 145 | 181 | 134 | 182 | 360 | 320 | 360 | 784 | 188 | 361 | 597 | 190 | 190 | 205 | 134 | 368 | 396 | 20 | 1 | 92 | 1 |
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.










