Surf Forecasts:
The Boiler surf forecast from 19 Jul 2026:
- Most powerful swell: Sunday 26 Jul, 7PM (local time) - 2ft (0.6m), 4s period, W swell with 9 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 0.6m 4s and forecast to arrive on Sunday (Jul 26) at 7PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Wednesday (Jul 22) at 7PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7PM (Sun 26th Jul) | 2ft (0.6m) 4s |
Table - best surf conditions forecast for The Boiler over the next 16 days.
The Lowdown
G’day, I’m Rusty. Let’s have a look at what’s coming up for The Boiler.
Right off the bat, the first week and a half is a real struggle. From Sunday the 19th of July all the way through to the end of the month, the swell is tiny – we’re talking 0.3ft to 1ft at best, with crap energy and mostly short-period dribble. The water temp is sitting at 69°F, which is a whopping 9°F above normal for this time of year – that’s a seriously weird anomaly, like swimming in a bath. But the waves? Basically nothing. The Boiler is an inconsistent reef break, and it’s living up to that name. There’s a long blank stretch of maybe 10 days with no real surf to speak of.
Then, around Tuesday the 28th of July, things try to kick off. We get a pulse of 5ft swell from the west early on Tuesday morning, with a moderate cross-offshore wind from the west-northwest at 16 mph. The combined energy jumps to 178 (moderate) – finally some life. Still, the period is only 7 seconds, so it’s a short, lumpy windswell, and the afternoon gets messy with a fresh 22 mph cross-shore. It’s not great, but it’s the best we’ve seen in a while. Wednesday the 29th drops back to 2ft with cleaner conditions, but the energy is weak again.
The real standout window opens up on Sunday the 2nd of August. Sunday morning looks glassy – zero wind, dead calm – with a 1ft west swell and a period of 9 seconds. The combined energy hits 65 (still weak, but the best of the whole run). It’s a tiny wave, but for a reef break that rarely gets clean, this is a rare moment of pure, glassy conditions. The afternoon picks up to 3ft from the west-southwest with a 5-second period, but it’s cross-shore and a bit lumpy. The real highlight is Monday the 3rd of August: the morning brings a 2ft west-southwest swell with an 8-second period, light offshore wind from the north at 6 mph, and the combined energy at 75. The notes say “surfable waves but very ordinary conditions” – I’d call it the best of a tough run. It’s clean, small, and rideable. For a break that’s inconsistent and rarely turns on, this is the one to aim for. Crowds are possible here, so don’t expect to have it to yourself.
Beyond that, Tuesday the 4th fades again. So, overall, treat the first week as a write-off, but keep your eyes on Sunday the 2nd and Monday the 3rd of August – that’s your best bet for a paddle.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Tue afternoon, min 14°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 25°C on Thu afternoon, min 15°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Sun 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | ||||||||||||||
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 7 | W 10 | W 12 | W 11 | W 11 | W 11 | W 10 | W 10 | W 10 | W 9 | W 9 | W 9 | W 8 | NW 3 | W 13 | W 8 | WNW 3 | W 8 | W 3 | W 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 1 | 2 | 3 | 2 | 2 | 2 | 2 | 2 | 8 | 7 | 6 | 6 | 1 | 2 | 3 | 1 | 2 | 1 | 2 | 1 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-on | cross-off | off | cross-on | cross | off | off | cross-off | cross-off | glassy | cross-off | off | glassy | cross | off | cross-off | cross | cross-off |
High Tide | 11:01PM8.94m | 11:23AM8.43m | 11:40PM8.45m | 12:03PM7.96m | 00:23AM7.94m | 12:51PM7.52m | 1:15AM7.47m | 1:53PM7.20m | 2:22AM7.17m | 3:07PM7.14m | 3:36AM7.15m | 4:18PM7.38m | ||||||||
Low Tide | 4:43PM1.62m | 5:11AM1.78m | 5:21PM2.03m | 5:48AM2.25m | 6:03PM2.48m | 6:32AM2.72m | 6:55PM2.92m | 7:29AM3.13m | 8:02PM3.24m | 8:40AM3.34m | 9:16PM3.29m | 9:53AM3.26m | 10:24PM3.08m | |||||||
 |  | | | | | | | | | | | | | | | | |  | | |
 | — | — | 5:20 | — | — | 5:22 | — | — | 5:24 | — | — | 5:24 | — | — | 5:26 | — | — | 5:28 | — | — |
 | — | 9:22 | — | — | 9:22 | — | — | 9:21 | — | — | 9:19 | — | — | 9:17 | — | — | 9:16 | — | — | 9:15 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 20 | 21 | 18 | 21 | 23 | 20 | 21 | 23 | 21 | 21 | 25 | 19 | 21 | 24 | 20 | 21 | 23 | 18 |
Feels °C | 19 | 17 | 18 | 17 | 15 | 20 | 20 | 17 | 20 | 20 | 19 | 20 | 22 | 16 | 19 | 22 | 18 | 17 | 18 | 14 |
Swell 1 Height (m) Direction Period (s) | W 7 | W 10 | W 9 | W 8 | NW 4 | W 11 | W 10 | NW 3 | W 10 | W 9 | NW 4 | W 9 | W 8 | NW 3 | W 8 | W 8 | WNW 3 | W 8 | W 8 | W 8 |
| kJ | 1 | 2 | 2 | 1 | 3 | 2 | 2 | 2 | 8 | 7 | 2 | 6 | 1 | 2 | 1 | 1 | 2 | 1 | 1 | 1 |
Swell 2 Height (m) Direction Period (s) | — | W 7 | W 9 | — | W 8 | W 7 | W 7 | W 10 | — | — | W 9 | W 15 | — | W 8 | W 13 | — | W 8 | — | — | — |
| kJ | — | 1 | 2 | — | 1 | 1 | 1 | 2 | — | — | 6 | 4 | — | 1 | 3 | — | 1 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | W 12 | W 11 | W 11 | — | — | W 7 | W 7 | — | — | — | — | — | — | — | — | — | — | W 8 |
| kJ | — | — | 3 | 2 | 2 | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | 1 |
Wind waves Height (m) Direction Period (s) | — | NNW 3 | — | — | — | — | — | — | NNW 3 | NW 3 | NNE 2 | — | — | — | — | — | — | — | W 3 | WNW 3 |
| kJ | — | 2 | — | — | — | — | — | — | 1 | 3 | 1 | — | — | — | — | — | — | — | 2 | 2 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 344 | 350 | 201 | 201 | 349 | 152 | 189 | 196 | 196 | 473 | 85 | 85 | 201 | 134 | 437 | 928 | 447 | 1054 | 432 | 899 |
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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