
Surf Forecasts:
The Boiler surf forecast from 4 Jul 2026:
- Best quality surf: Sunday 5 Jul, 4AM (local time) - 3ft (0.9m), 6s period, W swell with cross-offshore winds.
- Most powerful swell: Saturday 4 Jul, 4PM (local time) - 3.5ft (1.1m), 6s period, WSW swell with 80 kJ wave energy.
- Next surfable swell (1★+): Sunday 5 Jul, 4AM (local time) - 3ft (0.9m), 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 0.9m 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 6s 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 0.8m 6s period and expected on Sunday (Jul 05) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sun 5th Jul) | 3ft (0.9m) 6s |
| Best Surf | 4AM (Sun 5th Jul) | 3ft (0.9m) 6s |
| Most Powerful | 4PM (Sat 4th Jul) | 3.5ft (1.1m) 6s |
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 be straight up about this one. The outlook for The Boiler is pretty grim. We're looking at a long, long stretch of poor surf conditions stretching all the way through the 16-day forecast. There's no standout session, no hidden gem, no reason to get excited. It's a flat and frustrating run.
The water is running exceptionally warm, about 5° warmer than usual for this time of year. That's a very notable anomaly, so expect it to feel like bathwater.
The only surfable energy in the whole period comes on the morning of Sunday, July 5th. It's an ordinary wave, honestly. Swell is a weak 3 ft from the W at a short 6 seconds period, giving us a paltry combined energy of just 72. It's small and weak. The wind is a light 9 mph cross-offshore, keeping it clean, making it the best of a very bad bunch, which isn't saying much. For a beginner, this is about as small as it gets. That's it. One morning.
After that, it's a wasteland. We go from that Sunday right through to the end of the forecast on July 19th with nothing but poor conditions. The swell drops to tiny 1 ft junk, with short periods and mostly cross or onshore winds chopping it up. The combined energy figures are pathetic, mostly in the low double digits, like 22 on July 7th, 15 on the 9th, and bottoming out at a truly miserable 4 on July 19th. There are a few glassy moments early on July 11th and again on the 15th, but with no swell to push through, it's just a lake.
Given how consistently poor it is with no signs of life, this is a tough one for the area. The Boiler is an inconsistent reef break anyway, and this forecast is a stark reminder. For paddle surfing, there's just nothing to work with. The only thing worth noting is that with the stronger winds and tiny, choppy conditions, this setup might look more interesting for a kite surfer than anyone on a surfboard.
Stay patient, keep the board waxed, and hope the long-range models change their tune. Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Sun morning, min 15°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 32°C on Thu afternoon, min 17°C on Tue morning). Winds increasing (calm on Wed morning, fresh winds from the E by Thu night). | ||||||||||||||||||||
Saturday 4 | Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | |||||||||||||||
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 6 | WSW 6 | WSW 6 | W 6 | WSW 9 | WSW 9 | W 9 | W 5 | WSW 8 | WSW 9 | WSW 9 | WSW 8 | W 8 | W 8 | W 10 | W 9 | W 9 | W 10 | WSW 9 | W 9 | WSW 8 |
Wave Graph | |||||||||||||||||||||
62 | 80 | 54 | 44 | 29 | 26 | 14 | 17 | 24 | 15 | 15 | 13 | 12 | 13 | 16 | 15 | 15 | 17 | 27 | 39 | 22 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-off | cross | cross | cross-on | cross-on | cross | cross | cross-on | off | cross-on | cross | cross-off | cross | cross-off | cross | cross | cross-on | glassy |
High Tide | 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 | 2:51PM7.69m | 3:31AM7.90m | ||||||||
Low Tide | 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 | 8:27AM2.68m | 9:05PM2.71m | ||||||||
5:03 | — | — | 5:05 | — | — | 5:05 | — | — | 5:07 | — | — | 5:07 | — | — | 5:09 | — | — | 5:09 | — | — | |
— | — | 9:35 | — | — | 9:35 | — | — | 9:34 | — | — | 9:34 | — | — | 9:32 | — | — | 9:31 | — | — | 9:31 | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 18 | 17 | 20 | 20 | 16 | 18 | 18 | 17 | 20 | 21 | 20 | 23 | 26 | 25 | 28 | 32 | 28 | 28 | 27 | 21 |
Feels °C | 15 | 15 | 16 | 18 | 17 | 15 | 16 | 15 | 16 | 18 | 18 | 19 | 23 | 26 | 25 | 26 | 29 | 24 | 24 | 25 | 21 |
Swell 1 Height (m) Direction Period (s) | WSW 6 | — | WSW 6 | W 6 | WSW 9 | WSW 9 | W 5 | W 8 | WSW 4 | W 5 | WSW 9 | WSW 8 | W 8 | W 8 | W 10 | W 9 | W 9 | W 10 | WSW 9 | W 9 | WSW 8 |
62 | — | 54 | 44 | 26 | 26 | 14 | 12 | 6 | 7 | 15 | 13 | 12 | 13 | 16 | 15 | 15 | 17 | 27 | 39 | 22 | |
Swell 2 Height (m) Direction Period (s) | W 10 | — | W 10 | WSW 9 | — | WSW 9 | W 9 | — | WSW 8 | WSW 9 | W 11 | W 4 | — | — | — | — | — | — | — | — | W 13 |
51 | — | 48 | 28 | — | 15 | 13 | — | 24 | 15 | 2 | 1 | — | — | — | — | — | — | — | — | 3 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | W 10 | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | WSW 6 | W 6 | — | WSW 5 | WSW 5 | — | W 5 | — | — | WSW 4 | — | — | — | — | — | — | ESE 3 | E 3 | E 4 | — |
— | 80 | 41 | — | 29 | 7 | — | 17 | — | — | 7 | — | — | — | — | — | — | 4 | 7 | 14 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 360 | 360 | 0 | 0 | 133 | 176 | 182 | 182 | 167 | 190 | 190 | 85 | 71 | 71 | 71 | 71 | 85 | 51 | 71 | 96 | 94 |
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.










