
Surf Forecasts:
The Boiler surf forecast from 3 Jul 2026:
- Best quality surf: Sunday 5 Jul, 4AM (local time) - 2.5ft (0.8m), 6s period, W swell with cross-offshore winds.
- Most powerful swell: Saturday 4 Jul, 4PM (local time) - 3.5ft (1.1m), 10s period, W swell with 240 kJ wave energy.
- Next surfable swell (1★+): Sunday 5 Jul, 4AM (local time) - 2.5ft (0.8m), 6s period with W swell.
Best Forecast Surf Conditions for The Boiler this week:
The surf forecast for The Boiler over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Jul 05) at 4AM. The primary swell is predicted to be 0.8m and 6s period with a secondary swell of 0.4m and 10s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at The Boiler in the next 16 days are 1.1m 10s and forecast to arrive on Saturday (Jul 04) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 3s period and expected on Wednesday (Jul 08) at 10PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sun 5th Jul) | 2.5ft (0.8m) 6s |
| Best Surf | 4AM (Sun 5th Jul) | 2.5ft (0.8m) 6s |
| Most Powerful | 4PM (Sat 4th Jul) | 3.5ft (1.1m) 10s |
Table - best surf conditions forecast for The Boiler over the next 16 days.
Updates in hr min s Forecast update imminent
Alright folks, Rusty here. Let's get into it.
Honestly, the next couple of weeks are looking pretty bleak. The only spot on the radar is The Boiler, and it’s a bit of a shy spot that doesn’t fire often. We’re looking at a long stretch of poor conditions with barely a ripple, so keep your expectations in the shed for a while.
Looking at the first week or so, it’s a write-off. We’re talking days of tiny, weak swell with cross-shore winds chopping everything up. The combined wave energy is mostly weak, sitting under 100, and the swell periods are short, under 8 seconds, so there’s no power. The water’s running at a very unusual 5° warmer than average for this time of year at The Boiler, but that’s cold comfort when the surf’s flat and messy.
There’s a real gap here, with nothing worth paddling out for from the start until around Wednesday, the 15th of July. Even then, that Wednesday morning just scrapes a ‘surfable’ rating with a tiny 2ft swell from the west and glassy conditions. The energy is still weak at 82, so it’s not something you’d set your alarm for.
Now, I have to point out one potential standout, even if it’s a long way off. Look at the morning of Saturday, the 18th of July. We’ve got a clean 5ft swell rolling in from the west, onshore wind is dead calm, and it’s glassy. The combined energy jumps to a strong 432, so there’s some proper power behind it. The period is a short 7 seconds, which won’t give the best shape but with that energy and glass, it’ll be fun. This is the one to watch, but it’s a long-range call so keep an eye on it.
Before that Saturday morning, there’s a brief flicker on the afternoon of Tuesday, 14th of July. The Boiler might see a clean 3ft from the west-southwest with offshore wind. The period is a pathetic 4 seconds, so the energy is weak at 57, but it’ll be clean for a grovel. Then on Friday morning, the 17th of July, there's another little burst of clean, offshore conditions with 2ft from the west. Again, the energy is weak at 88, but a clean wave is a clean wave.
So, to sum it up: mostly flat and messy. The best bet is the glassy, 5ft morning on the 18th of July. It’s the only day that looks like it’ll have some push and clean faces. The rest? Leave the board in the car.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Sun afternoon, min 14°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 24°C on Wed afternoon, min 16°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Friday 3 | Saturday 4 | Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | |||||||||||||||
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 10 | W 10 | WSW 10 | W 10 | W 10 | W 10 | W 6 | WSW 9 | W 9 | W 9 | WSW 5 | WSW 8 | W 5 | W 5 | W 8 | W 8 | W 9 | W 9 | W 9 | W 9 | W 9 |
Wave Graph | |||||||||||||||||||||
133 | 161 | 136 | 51 | 240 | 48 | 32 | 26 | 40 | 14 | 29 | 24 | 19 | 17 | 11 | 12 | 13 | 15 | 15 | 14 | 6 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-on | cross | cross | cross-off | cross-off | cross | cross | cross | cross | cross | cross-off | cross | cross | glassy | cross-off | off | cross-on | cross-off | cross-on |
High Tide | 9:25PM8.80m | 9:42AM8.49m | 10:01PM8.70m | 10:18AM8.37m | 10:39PM8.55m | 10:56AM8.20m | 11:19PM8.35m | 11:39AM7.99m | 00:06AM8.12m | 12:30PM7.78m | 1:04AM7.90m | 1:35PM7.64m | 2:14AM7.80m | ||||||||
Low Tide | 3:04PM1.91m | 3:29AM1.82m | 3:38PM1.97m | 4:05AM1.89m | 4:14PM2.09m | 4:42AM2.03m | 4:52PM2.26m | 5:24AM2.22m | 5:38PM2.47m | 6:13AM2.43m | 6:34PM2.68m | 7:14AM2.62m | 7:46PM2.80m | ||||||||
5:03 | — | — | 5:03 | — | — | 5:05 | — | — | 5:05 | — | — | 5:07 | — | — | 5:07 | — | — | 5:09 | — | — | |
— | — | 9:36 | — | — | 9:35 | — | — | 9:35 | — | — | 9:34 | — | — | 9:34 | — | — | 9:32 | — | — | 9:31 | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 15 | 18 | 18 | 18 | 19 | 20 | 16 | 18 | 18 | 17 | 21 | 23 | 21 | 23 | 24 | 21 | 23 | 27 | 25 |
Feels °C | 13 | 13 | 14 | 14 | 14 | 17 | 17 | 17 | 15 | 15 | 15 | 16 | 18 | 20 | 20 | 22 | 22 | 19 | 22 | 27 | 25 |
Swell 1 Height (m) Direction Period (s) | WSW 10 | W 10 | WSW 10 | W 6 | — | W 5 | W 6 | WSW 9 | W 9 | W 9 | — | WSW 8 | WSW 9 | WSW 9 | W 8 | W 8 | W 9 | W 9 | W 9 | W 9 | NNW 3 |
133 | 161 | 136 | 44 | — | 28 | 32 | 26 | 40 | 13 | — | 24 | 15 | 15 | 11 | 12 | 13 | 15 | 15 | 14 | 1 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | W 10 | — | W 10 | WSW 9 | — | W 4 | — | — | W 8 | — | — | W 10 | W 4 | — | W 4 | — | — | W 9 |
— | — | — | 51 | — | 48 | 28 | — | 4 | — | — | 22 | — | — | 2 | 3 | — | 1 | — | — | 6 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | W 10 | — | — | WSW 5 | WSW 5 | W 5 | WSW 5 | W 4 | W 5 | W 5 | W 4 | — | W 4 | NNW 3 | — | — | — |
— | — | — | — | 240 | — | — | 21 | 7 | 14 | 29 | 10 | 19 | 17 | 6 | — | 5 | 1 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 111 | 273 | 125 | 0 | 360 | 315 | 1 | 133 | 188 | 182 | 182 | 182 | 190 | 190 | 88 | 71 | 189 | 71 | 126 | 85 | 126 |
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.










