Surf Forecasts:
The Boiler surf forecast from 30 Jul 2026:
- Most powerful swell: Saturday 1 Aug, 4PM (local time) - 2.5ft (0.7m), 9s period, WSW swell with 84 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 9s and forecast to arrive on Saturday (Aug 01) 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 0.4m 4s period and expected on Saturday (Aug 01) at 10PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4PM (Sat 1st Aug) | 2.5ft (0.7m) 9s |
Table - best surf conditions forecast for The Boiler over the next 16 days.
The Lowdown
Alright, this is a tough one to call. I've been staring at the charts for The Boiler, and honestly, it's looking like a real drought for us. There's just nothing on the table worth paddling out for in this whole 16-day window.
The Boiler is an inconsistent reef setup that needs a decent push from the southwest, and we're just not getting it. The swell is tiny throughout – we're looking at ankle to shin-high waves at best, with combined energy readings mostly in the weak double digits (like 40, 15, 14). The water's sitting at a warm 69°, which is much warmer than normal for this time of year, but that's about the only thing that's firing.
Thursday the 30th and Friday the 31st start us off with nothing. Morning winds are okay, cross-off from the northwest, but with only 2ft to 2ft of weak, short-period swell (just 5 seconds), it's a lake. We get into the first week of August, and it's the same story. Sunday the 2nd afternoon goes glassy with that tiny 1ft, but there's no push to it. There's a slight bump on Monday the 10th of August, with a 3ft swell showing up from the WSW and the energy finally cracking triple digits at 108, but the wind's straight onshore from the south and the period is still short at 7 seconds. It's just messy. For a spot that's already inconsistent, this is a long period of flatness. Honestly, for most of these days with a bit of wind and barely a ripple, this setup looks way more interesting for kite surfing than paddle surfing. Just nothing doing for us. I hate to be the bearer of bad news, but that's the reality of it.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Thu afternoon, min 13°C on Thu night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 24°C on Mon afternoon, min 16°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||
Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | |||||||||||||||
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) | W 5 | W 5 | W 4 | W 5 | W 4 | W 4 | W 5 | WSW 9 | WSW 8 | WSW 8 | WSW 8 | WSW 10 | WSW 9 | WSW 9 | WSW 8 | WSW 8 | WSW 7 | SW 7 | SW 7 | SW 7 | SW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 19 | 12 | 6 | 12 | 18 | 8 | 20 | 84 | 24 | 13 | 13 | 38 | 73 | 68 | 45 | 24 | 21 | 12 | 11 | 7 | 7 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | off | cross-off | cross | cross-off | cross-off | cross | off | cross-on | glassy | off | cross-on | cross | cross-off | cross-on | cross | off | on | cross | off |
High Tide | 7:59PM9.04m | 8:16AM8.84m | 8:33PM9.18m | 8:49AM8.96m | 9:07PM9.24m | 9:22AM8.97m | 9:40PM9.18m | 9:54AM8.86m | 10:13PM9.00m | 10:28AM8.65m | 10:49PM8.70m | 11:05AM8.34m | 11:30PM8.31m | ||||||||
Low Tide | 1:43PM1.77m | 2:03AM1.57m | 2:15PM1.60m | 2:37AM1.43m | 2:47PM1.51m | 3:09AM1.37m | 3:18PM1.51m | 3:41AM1.44m | 3:50PM1.63m | 4:14AM1.63m | 4:23PM1.85m | 4:49AM1.92m | 5:02PM2.18m | ||||||||
 |  |  | | | | | |  | |  | | | | | | | | | | | |
 | 5:35 | — | — | 5:37 | — | — | 5:37 | — | — | 5:39 | — | — | 5:41 | — | — | 5:43 | — | — | 5:43 | — | — |
 | — | — | 9:07 | — | — | 9:06 | — | — | 9:05 | — | — | 9:02 | — | — | 9:00 | — | — | 9:00 | — | 8:58 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 20 | 17 | 17 | 17 | 16 | 17 | 17 | 17 | 20 | 22 | 19 | 23 | 24 | 21 | 23 | 23 | 20 | 19 | 22 | 20 |
Feels °C | 16 | 15 | 13 | 11 | 11 | 13 | 13 | 12 | 14 | 17 | 20 | 17 | 20 | 22 | 18 | 21 | 20 | 18 | 18 | 19 | 18 |
Swell 1 Height (m) Direction Period (s) | W 5 | W 10 | W 4 | W 5 | W 9 | W 11 | W 5 | WSW 9 | WSW 8 | WSW 8 | WSW 8 | WSW 10 | WSW 9 | WSW 9 | WSW 8 | WSW 8 | WSW 7 | SW 7 | SW 7 | SW 7 | SW 7 |
| kJ | 19 | 2 | 6 | 12 | 2 | 2 | 20 | 16 | 24 | 13 | 13 | 38 | 73 | 68 | 45 | 24 | 21 | 12 | 11 | 7 | 7 |
Swell 2 Height (m) Direction Period (s) | W 10 | W 7 | W 9 | W 9 | W 12 | W 9 | WSW 10 | — | W 4 | W 4 | W 4 | — | — | — | NW 3 | — | — | W 9 | W 10 | W 10 | W 3 |
| kJ | 7 | 1 | 2 | 2 | 3 | 2 | 19 | — | 3 | 1 | 1 | — | — | — | 2 | — | — | 2 | 2 | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | W 8 | — | W 7 | — | — | W 11 | — | — | — | — | — | — | — | — | — | — | W 9 | — | — | W 13 | W 11 |
| kJ | 1 | — | 1 | — | — | 2 | — | — | — | — | — | — | — | — | — | — | 2 | — | — | 3 | 2 |
Wind waves Height (m) Direction Period (s) | W 5 | W 5 | — | — | W 4 | W 4 | — | WSW 9 | — | — | — | — | — | — | — | ENE 2 | — | — | WNW 3 | W 3 | — |
| kJ | 13 | 12 | — | — | 18 | 8 | — | 84 | — | — | — | — | — | — | — | 1 | — | — | 1 | 2 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 320 | 360 | 188 | 188 | 397 | 361 | 205 | 85 | 201 | 189 | 20 | 13 | 6 | 14 | 20 | 360 | 189 | 401 | 437 | 189 | |
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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