Surf Forecasts:
The Boiler surf forecast from 7 Jul 2026:
- Most powerful swell: Friday 10 Jul, 10AM (local time) - 1.5ft (0.5m), 9s period, W swell with 41 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 0.5m 9s and forecast to arrive on Friday (Jul 10) at 10AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Monday (Jul 13) at 10PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10AM (Fri 10th Jul) | 1.5ft (0.5m) 9s |
Table - best surf conditions forecast for The Boiler over the next 16 days.
Alright, I’ll put it in terms you can feel. The Boiler is staring at a dead flat spell for the next 16 days – don't get your hopes up.
The first hint of anything comes on Tuesday, July 7th, but it’s heartbreakingly small. We’re talking 1ft dribble from the WSW, with a wave energy of just 22 – that’s nothing. The water’s weirdly warm at 68°F, a full 9°F above normal, which is a real standout. But there’s no juice. Tuesday morning has a cross-shore wind at 9 mph messing it up, and the afternoon is the same with 12 mph winds. Just chop.
Wednesday the 8th and Thursday the 9th are a joke. You get 1ft to 1ft waves. Sure, Thursday morning is glassy – not a breath of wind – but the swell is so weak (energy of 17) you can barely get a ripple. Friday the 10th offers 2ft from the west, period of 9 seconds, and the energy creeps up to 40 or so. It’s still knee-high slop, and the morning has a light cross-onshore breeze.
From Saturday the 11th all the way to Wednesday, July 22nd, it’s a desert. The biggest wave we see is about 2ft on a few days, but most of the time it’s under 1ft. The swell is a mix of weak, short-period windswell (3 to 5 seconds) and a couple of long-period pulses from the SW going 16-19 seconds, but they’re so tiny they don’t break. Energy readings are stuck in the teens and low 30s – pathetic.
The last week, from July 18th to the 22nd, is the worst of it: waves drop to 0.3ft to 0.7ft with onshore winds making it a choppy mess. There’s one glassy morning on July 22nd with 0.7ft from the west, but that’s it.
The Boiler is an inconsistent reef, and this stretch proves it. There’s zero rideable surf in the whole 16-day window. It’s a complete blank run – leave the gear at home.
- Rusty
Short Range ForecastMostly dry. Warm (max 26°C on Thu afternoon, min 17°C on Tue morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 31°C on Fri afternoon, min 14°C on Sun night). Winds increasing (calm on Fri afternoon, fresh winds from the ENE by Sun night). | ||||||||||||||||||||
Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | |||||||||||||||
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 9 | WSW 9 | WSW 8 | WSW 8 | WSW 8 | W 10 | W 10 | WSW 10 | W 9 | W 9 | W 9 | WSW 8 | W 7 | WSW 8 | E 4 | E 4 | E 3 | W 8 | E 4 | E 4 | E 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 15 | 15 | 13 | 23 | 24 | 17 | 17 | 31 | 16 | 41 | 39 | 22 | 8 | 13 | 13 | 12 | 8 | 1 | 13 | 15 | 27 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross-on | cross | cross-off | glassy | cross | off | cross-on | glassy | cross-off | cross | cross-off | cross | cross | cross-off | cross-off | cross | cross | cross |
High Tide | 11:39AM7.99m | 00:06AM8.12m | 12:30PM7.78m | 1:04AM7.90m | 1:35PM7.64m | 2:14AM7.80m | 2:51PM7.69m | 3:31AM7.90m | 4:08PM8.00m | 4:45AM8.22m | 5:17PM8.49m | 5:52AM8.65m | 6:19PM8.99m | ||||||||
Low Tide | 5:38PM2.47m | 6:13AM2.43m | 6:34PM2.68m | 7:14AM2.62m | 7:46PM2.80m | 8:27AM2.68m | 9:05PM2.71m | 9:43AM2.51m | 10:21PM2.39m | 10:54AM2.17m | 11:29PM1.95m | 11:58AM1.75m | 00:32AM1.52m | ||||||||
 |  |  | | | | | | | | | | | | | | | | | |  | |
 | 5:07 | — | — | 5:07 | — | — | 5:09 | — | — | 5:09 | — | — | 5:11 | — | — | 5:11 | — | — | 5:13 | — | — |
 | — | — | 9:34 | — | — | 9:32 | — | — | 9:31 | — | — | 9:31 | — | — | 9:30 | — | — | 9:30 | — | — | 9:29 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 18 | 19 | 20 | 22 | 19 | 22 | 26 | 23 | 27 | 31 | 28 | 27 | 31 | 27 | 25 | 29 | 23 | 24 | 31 | 26 |
Feels °C | 15 | 15 | 18 | 20 | 21 | 18 | 22 | 26 | 22 | 26 | 31 | 28 | 26 | 30 | 24 | 22 | 25 | 16 | 17 | 25 | 17 |
Swell 1 Height (m) Direction Period (s) | W 5 | WSW 9 | WSW 8 | WSW 8 | WSW 8 | W 10 | W 10 | WSW 10 | W 9 | W 9 | W 9 | WSW 8 | W 7 | WSW 8 | W 8 | W 8 | W 8 | W 8 | W 19 | SW 19 | SW 15 |
| kJ | 7 | 15 | 13 | 23 | 24 | 17 | 17 | 31 | 16 | 41 | 39 | 22 | 8 | 13 | 5 | 1 | 1 | 1 | 7 | 15 | 9 |
Swell 2 Height (m) Direction Period (s) | WSW 9 | W 11 | WSW 4 | — | — | W 4 | — | — | W 4 | — | — | — | WSW 8 | — | — | W 16 | — | — | W 8 | W 15 | W 8 |
| kJ | 15 | 2 | 3 | — | — | 4 | — | — | 2 | — | — | — | 6 | — | — | 5 | — | — | 1 | 4 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | W 10 | — | — | — | — | — | NNW 3 | — | — | — | — | — | — | — | — | — | — | W 8 | — |
| kJ | — | — | 2 | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | 1 | — |
Wind waves Height (m) Direction Period (s) | — | W 5 | — | — | — | — | — | — | — | — | ESE 2 | — | — | — | E 4 | E 4 | E 3 | E 4 | E 4 | E 4 | E 4 |
| kJ | — | 11 | — | — | — | — | — | — | — | — | 1 | — | — | — | 13 | 12 | 8 | 18 | 13 | 13 | 27 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 190 | 205 | 85 | 71 | 315 | 79 | 85 | 188 | 51 | 14 | 20 | 71 | 88 | 188 | 85 | 421 | 135 | 370 | 340 | 401 | 340 |
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.
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