Surf Forecasts:
The Boiler surf forecast from 15 Jul 2026:
- Most powerful swell: Thursday 16 Jul, 1AM (local time) - 0.5ft (0.2m), 9s period, WSW swell with 10 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 0.1m 16s and forecast to arrive on Thursday (Jul 16) at 1AM. 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 10PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Thu 16th Jul) | 0.5ft (0.2m) 9s |
Table - best surf conditions forecast for The Boiler over the next 16 days.
The Lowdown
Alright, let's talk surf. For The Boiler, it’s a pretty quiet outlook for the next two weeks. We’ve got a big stretch of tiny, poor-quality waves starting now and running right through to the end of July. Most days you’re looking at ankle-biters, 0.5ft to 0.8ft, and the wind’s not doing us many favours either. It’s just one of those flat summer spells.
The ocean water is sitting around 69°, which is much warmer than usual for this time of year – a solid 9° above average. You’ll be comfortable in boardshorts or a spring suit.
The one and only day that stands out is Wednesday, July 29th. The morning session is the one to circle. We’ve got a clean 5ft swell from the WSW, with a 8-second period, and it’s glassy – absolutely no wind. The combined swell energy is strong at 610. That’s your window. It’s a reef break for intermediates, so know what you’re doing. The afternoon gets messy with a moderate cross-shore, so make sure you’re in the water early.
After that, Thursday the 30th has some leftover 3ft waves in the morning with clean cross-off winds, but it’s nothing special, just ordinary with a combined energy of 106. Then it’s right back to the small stuff.
Bottom line: there’s one real highlight on the morning of the 29th. The rest is a write-off. Get it while you can.
- Rusty
Short Range ForecastMostly dry. Warm (max 27°C on Wed afternoon, min 17°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 24°C on Sat afternoon, min 14°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wed 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | WSW 9 | WSW 9 | W 8 | WSW 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | E 3 | E 3 | W 10 | W 12 | W 12 | W 18 | W 10 | W 10 | W 10 | W 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 10 | 10 | 8 | 7 | 6 | 5 | 7 | 7 | 5 | 5 | 1 | 8 | 1 | 2 | 3 | 3 | 6 | 2 | 2 | 2 | 2 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross | cross-off | cross-off | glassy | cross | off | glassy | cross-off | cross-off | cross | cross | off | cross-off | cross-off | off | cross-on | cross-off | cross-off | cross-on |
High Tide | 8:07PM9.66m | 8:37AM9.47m | 8:55PM9.74m | 9:23AM9.43m | 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 | |||||||
Low Tide | 2:24AM0.97m | 2:39PM1.03m | 3:12AM0.94m | 3:24PM1.08m | 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 | ||||||||
 |  | | |  | |  | | | | | | | | | | | | | | | |
 | — | — | 5:16 | — | — | 5:16 | — | — | 5:18 | — | — | 5:20 | — | — | 5:20 | — | — | 5:22 | — | — | 5:24 |
 | — | 9:27 | — | — | 9:25 | — | — | 9:24 | — | — | 9:23 | — | — | 9:22 | — | — | 9:22 | — | — | 9:21 | 9:19 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 26 | 24 | 27 | 25 | 22 | 24 | 20 | 21 | 24 | 20 | 20 | 22 | 20 | 20 | 21 | 20 | 21 | 24 | 23 | 22 |
Feels °C | 26 | 22 | 23 | 24 | 22 | 20 | 21 | 16 | 18 | 21 | 18 | 17 | 18 | 16 | 18 | 17 | 17 | 19 | 21 | 20 | 21 |
Swell 1 Height (m) Direction Period (s) | WSW 9 | WSW 9 | W 8 | WSW 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 7 | W 7 | NNW 3 | W 9 | W 8 | W 8 | W 10 | W 7 | NW 3 | W 10 |
| kJ | 8 | 8 | 5 | 7 | 6 | 5 | 5 | 5 | 5 | 5 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 2 | 1 | 2 | 2 |
Swell 2 Height (m) Direction Period (s) | SW 16 | SW 6 | W 10 | — | — | SW 6 | SW 6 | SW 6 | — | S 5 | — | W 7 | — | W 10 | W 9 | W 12 | W 11 | W 7 | W 10 | W 10 | W 7 |
| kJ | 10 | 1 | 2 | — | — | 2 | 1 | 1 | — | 1 | — | 1 | — | 2 | 2 | 3 | 2 | 1 | 2 | 2 | 1 |
Swell 3 Height (m) Direction Period (s) | SW 7 | SW 16 | SW 14 | SW 7 | SW 7 | — | SW 13 | SW 13 | SW 6 | — | — | — | — | W 7 | W 12 | — | W 18 | — | — | W 7 | — |
| kJ | 2 | 10 | 8 | 2 | 2 | — | 7 | 7 | 1 | — | — | — | — | 1 | 3 | — | 6 | — | — | 1 | — |
Wind waves Height (m) Direction Period (s) | E 3 | E 3 | — | ENE 2 | — | — | — | NW 3 | — | — | NW 4 | E 3 | E 3 | NNE 2 | — | NW 2 | NNW 4 | — | — | — | — |
| kJ | 3 | 1 | — | 1 | — | — | — | 2 | — | — | 4 | 8 | 1 | 1 | — | 2 | 3 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 72 | 232 | 221 | 174 | 318 | 318 | 1214 | 394 | 421 | 421 | 368 | 152 | 201 | 349 | 349 | 413 | 88 | 126 | 152 | 134 | 201 |
Best forecast wave conditions in Wales - Gower | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our The Boiler surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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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