Surf Forecasts:
The Boiler surf forecast from 17 Jul 2026:
- Most powerful swell: Friday 24 Jul, 7PM (local time) - 2.5ft (0.7m), 4s period, W swell with 12 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 0.7m 4s and forecast to arrive on Friday (Jul 24) at 7PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Saturday (Jul 18) at 7PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7PM (Fri 24th Jul) | 2.5ft (0.7m) 4s |
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 offer for the next couple of weeks.
Right off the bat, I gotta be straight with you – it's a tough start. For the first ten days, from the 17th of July right through to the 26th, the surf is basically a no-go. We're talking tiny, un-rideable waves with combined energies barely registering (between 1 and 45). It's a proper dry spell, so you might as well wax the board and leave it in the shed. There's a few glassy mornings in there, but with nothing to push you around, it's just a flat lake.
Now, things start to show a glimmer of life on the 27th of July, Monday morning. The Boiler (The Boiler) finally sees a pulse of 5ft swell from the west, with a short period of 7 seconds. The combined energy jumps to a moderate 214, and it's clean with a light cross-offshore breeze. It's not world-class, but it's surfable after a long wait. The water is running about 10°F warmer than usual for this time of year, so you can leave the thick steamer at home.
The afternoon of the 27th gets a bit bigger, pushing 5ft, but the wind swings cross-shore and cranks up to 19 mph, making it a lumpy mess. Not worth it.
The 28th of July, Tuesday morning, is probably your best bet across the whole period. We've got a 4ft west swell, 8-second period, and a clean cross-offshore breeze. The combined energy is a solid 163. It's a modest, clean little session perfect for an intermediate. The wind stays clean through the afternoon, but the swell drops a bit. The morning is the window.
After that, we're back into a slow decline. The 29th and 30th see smaller, weaker swell, and then the 31st of July is a complete write-off again with tiny surf and strong offshore winds. The 1st of August offers a last little gasp of 3ft to 4ft swell with clean winds, but it's weak with energies under 100. Not a standout, just a final chance to get wet.
So, to sum it up: the long wait pays off on the morning of the 28th. That's your one true highlight. Everything else is small, weak, or blown out. Keep your expectations in check, and you might snag a few fun ones.
Rusty.
Short Range ForecastSome drizzle, heaviest during Fri afternoon. Warm (max 25°C on Fri afternoon, min 14°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Mon afternoon, min 13°C on Tue night). Winds increasing (calm on Tue morning, fresh winds from the NNW by Wed afternoon). | |||||||||||||||||||
Fri 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | ||||||||||||||
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 | W 8 | W 8 | W 8 | NW 4 | W 7 | W 7 | W 10 | W 9 | W 11 | NW 4 | W 11 | W 10 | W 16 | W 10 | W 9 | W 9 | W 9 | W 8 | W 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 7 | 7 | 5 | 1 | 2 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 5 | 7 | 7 | 6 | 6 | 1 | 1 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | on | cross-off | cross-off | cross-on | cross | off | glassy | cross-off | cross-off | glassy | cross | off | off | cross-off | off | glassy | cross | off |
High Tide | 9:40PM9.63m | 10:05AM9.21m | 10:22PM9.35m | 10:45AM8.86m | 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 | |||||||
Low Tide | 3:55AM1.08m | 4:05PM1.29m | 4:34AM1.38m | 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 | ||||||||
 |  |  | |  | | | | | | | | | |  | | | | | | |
 | — | — | 5:18 | — | — | 5:20 | — | — | 5:20 | — | — | 5:22 | — | — | 5:24 | — | — | 5:24 | — | — |
 | — | 9:24 | — | — | 9:23 | — | — | 9:22 | — | — | 9:22 | — | — | 9:21 | — | — | 9:19 | — | — | 9:17 |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 19 | 19 | 23 | 21 | 18 | 21 | 18 | 19 | 22 | 22 | 20 | 22 | 18 | 19 | 20 | 18 | 19 | 22 | 19 |
Feels °C | 22 | 15 | 17 | 20 | 18 | 15 | 17 | 15 | 17 | 20 | 19 | 18 | 18 | 15 | 14 | 14 | 15 | 17 | 19 | 16 |
Swell 1 Height (m) Direction Period (s) | W 8 | W 8 | W 8 | W 8 | NW 4 | W 7 | W 7 | W 10 | W 9 | W 8 | NW 4 | W 11 | W 10 | W 10 | W 10 | W 9 | W 9 | W 9 | W 8 | WNW 3 |
| kJ | 5 | 5 | 5 | 1 | 2 | 1 | 1 | 2 | 2 | 1 | 2 | 2 | 2 | 2 | 7 | 7 | 6 | 6 | 1 | 1 |
Swell 2 Height (m) Direction Period (s) | SW 6 | SW 6 | — | S 5 | W 8 | NW 4 | — | W 7 | — | W 11 | N 3 | W 7 | W 7 | W 7 | — | — | — | — | — | W 8 |
| kJ | 1 | 1 | — | 1 | 1 | 1 | — | 1 | — | 2 | 1 | 1 | 1 | 1 | — | — | — | — | — | 1 |
Swell 3 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 6 | — | — | — | — | — | — | — | W 8 | — | — | W 16 | — | — | — | W 15 | — | — |
| kJ | 7 | 7 | 1 | — | — | — | — | — | — | — | 1 | — | — | 5 | — | — | — | 4 | — | — |
Wind waves Height (m) Direction Period (s) | — | NW 3 | — | NW 2 | ENE 3 | ESE 2 | — | NW 3 | — | — | ENE 2 | — | — | NW 3 | NW 3 | NW 4 | NNW 4 | — | — | — |
| kJ | — | 2 | — | 1 | 3 | 1 | — | 3 | — | — | 1 | — | — | 3 | 6 | 10 | 7 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 773 | 394 | 421 | 421 | 71 | 401 | 189 | 349 | 349 | 394 | 85 | 134 | 809 | 365 | 760 | 399 | 51 | 152 | 421 | 349 |
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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