Surf Forecasts:
The Boiler surf forecast from 12 Jul 2026:
- Most powerful swell: Monday 13 Jul, 10AM (local time) - 2.5ft (0.8m), 4s period, E swell with 19 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 0.8m 4s and forecast to arrive on Monday (Jul 13) at 10AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Monday (Jul 13) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10AM (Mon 13th Jul) | 2.5ft (0.8m) 4s |
Table - best surf conditions forecast for The Boiler over the next 16 days.
Alright, let’s take a look at what’s on offer.
Honestly, mate, it’s a pretty quiet stretch ahead for The Boiler. We’re looking at a long dry spell with barely a ripple for the first week and a half. The water temp is sitting at 68°F, which is a whopping 9°F warmer than usual for this time of year – that’s really unusual, and it’ll feel like a warm bath when you get in.
Starting from Sunday the 12th through to Friday the 24th of July, the surf is pretty much flat. Swell heights are mostly bouncing between 0.3ft and 1.0ft, with combined wave energy rarely getting out of single digits – we’re talking values from 1 up to 34 (weak energy). The odd morning might have a glassy surface – like Thursday morning the 16th with 1.0ft from the SW and a 8-second period, or Friday morning the 17th with 1.0ft from the SW – but there’s just no power behind it. It’s a solid gap of about 12 days with nothing worth paddling out for.
The first sign of life shows up late on Friday the 24th of July. The afternoon sees a bump in swell to 3ft from the west, with a short 6-second period and combined energy hitting 98 (still weak). Winds will be cross-off from the WNW at 16 mph, keeping the surface clean. It’s small, but it’s the best we’ve seen for a while.
Then on Sunday the 26th, we get a real shift. The morning brings 6ft from the WSW with an 8-second period and combined energy jumping to 412 (moderate wave energy). Afternoon holds at 6ft from the same direction, energy even stronger at 587. Now, that’s a real swell – but the wind is a problem. It’s cross-onshore from the WSW at 19-22 mph, making it lumpy and messy. At that size and with that wind, this is really more of a kite-surfing setup than a clean paddle session. It’s going to be choppy and hard to get a proper wave face.
This swell then drops back quickly. Monday the 27th sees 4ft from the WSW in the morning with a cross-shore wind, and 3ft in the afternoon with cross-onshore. The energy drops to 146 and 125 (still moderate). Not a standout.
So, the one standout here – and I say this with caution – is Sunday the 26th, if you don’t mind the wind. The swell is solid at 6-6ft from the WSW, pushing moderate energy into the reef. But the lumpy cross-onshore conditions will make it a battle. The Boiler is an inconsistent reef that needs the right combo, and unfortunately, the best swell of the period comes with a heavy side of wind.
Stay patient, and keep an eye on the forecasts – things can flip.
- Rusty
Short Range ForecastMostly dry. Warm (max 30°C on Sun afternoon, min 15°C on Sun night). Winds decreasing (strong winds from the ENE on Sun night, light winds from the NE by Tue afternoon). | Days 4-6 Weather SummaryModerate rain (total 13mm), heaviest on Wed afternoon. Warm (max 31°C on Wed afternoon, min 17°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | |||||||||||||||
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 8 | E 3 | W 8 | E 4 | E 4 | W 15 | W 11 | WSW 11 | WSW 10 | WSW 10 | WSW 9 | WSW 9 | SW 8 | SW 7 | SW 7 | SW 6 | SW 6 | SW 7 | SW 6 | SW 6 | SW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 5 | 8 | 1 | 19 | 15 | 4 | 12 | 12 | 10 | 10 | 10 | 10 | 9 | 8 | 8 | 6 | 7 | 11 | 9 | 9 | 8 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross-off | cross | cross-off | cross | cross-off | cross | cross-on | cross-off | cross-off | glassy | cross | cross-on | glassy | cross-on | cross-off | cross-on | cross | cross |
High Tide | 5:17PM8.49m | 5:52AM8.65m | 6:19PM8.99m | 6:52AM9.05m | 7:15PM9.41m | 7:47AM9.35m | 8:07PM9.66m | 8:37AM9.47m | 8:55PM9.74m | 9:23AM9.43m | 9:40PM9.63m | 10:05AM9.21m | 10:22PM9.35m | ||||||||
Low Tide | 10:54AM2.17m | 11:29PM1.95m | 11:58AM1.75m | 00:32AM1.52m | 12:56PM1.39m | 1:30AM1.17m | 1:50PM1.13m | 2:24AM0.97m | 2:39PM1.03m | 3:12AM0.94m | 3:24PM1.08m | 3:55AM1.08m | 4:05PM1.29m | ||||||||
 | |  | | |  | |  | | |  |  |  | | | | | | |  | | |
 | 5:11 | — | — | 5:13 | — | — | 5:13 | — | — | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — | 5:18 | — | — |
 | — | — | 9:30 | — | — | 9:29 | — | — | 9:28 | — | — | 9:27 | — | — | 9:25 | — | — | 9:24 | — | — | 9:23 |
mm | — | — | — | — | — | — | — | — | — | — | 3 | 1 | 2 | — | 1 | 2 | 2 | 2 | 2 | 2 | 2 |
Temp °C | 26 | 30 | 23 | 24 | 28 | 23 | 26 | 30 | 26 | 25 | 31 | 26 | 21 | 24 | 19 | 19 | 19 | 18 | 21 | 23 | 22 |
Feels °C | 23 | 26 | 15 | 19 | 25 | 16 | 23 | 29 | 22 | 25 | 30 | 25 | 20 | 22 | 17 | 18 | 17 | 17 | 21 | 22 | 23 |
Swell 1 Height (m) Direction Period (s) | W 8 | W 8 | W 8 | W 19 | SW 19 | W 12 | W 11 | WSW 11 | WSW 10 | WSW 10 | WSW 9 | WSW 9 | SW 8 | SW 7 | SW 7 | SW 6 | SW 6 | SW 7 | SW 6 | SW 6 | SW 6 |
| kJ | 5 | 1 | 1 | 7 | 15 | 3 | 10 | 12 | 10 | 9 | 8 | 8 | 9 | 8 | 7 | 6 | 6 | 11 | 9 | 9 | 8 |
Swell 2 Height (m) Direction Period (s) | W 16 | — | — | — | SW 15 | W 15 | SW 18 | SW 18 | SW 14 | SW 16 | SW 16 | SW 7 | W 8 | WSW 8 | W 8 | W 8 | W 8 | SW 13 | W 8 | W 8 | W 8 |
| kJ | 5 | — | — | — | 8 | 4 | 12 | 12 | 7 | 10 | 10 | 2 | 5 | 7 | 6 | 5 | 5 | 7 | 5 | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | W 8 | W 8 | W 8 | — | W 14 | — | S 7 | SW 7 | SW 16 | SW 14 | SW 14 | SW 15 | — | SW 13 | — | — | — | — |
| kJ | — | — | — | 1 | 1 | 1 | — | 4 | — | 1 | 2 | 10 | 8 | 8 | 8 | — | 7 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | E 3 | E 3 | E 4 | E 4 | E 4 | E 4 | E 3 | E 3 | E 3 | E 3 | E 3 | ESE 2 | E 2 | — | — | — | — | — | — | — | — |
| kJ | 5 | 8 | 35 | 19 | 10 | 18 | 5 | 3 | 5 | 5 | 3 | 1 | 1 | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 134 | 221 | 392 | 140 | 140 | 134 | 72 | 51 | 134 | 188 | 85 | 171 | 72 | 83 | 136 | 318 | 175 | 205 | 437 | 1122 | 401 |
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.
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