
Surf Forecasts:
The Boiler surf forecast from 5 Aug 2026:
- Best quality surf: Thursday 6 Aug, 10AM (local time) - 3.5ft (1.0m), 6s period, W swell with cross-offshore winds.
- Most powerful swell: Wednesday 5 Aug, 10PM (local time) - 4ft (1.2m), 6s period, WSW swell with 119 kJ wave energy.
- Next surfable swell (1★+): Thursday 6 Aug, 10AM (local time) - 3.5ft (1.0m), 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 Thursday (Aug 06) at 10AM. The primary swell is predicted to be 1.0m and 6s period with a secondary swell of 0.1m 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 1.2m 6s and forecast to arrive on Wednesday (Aug 05) at 10PM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Thu 6th Aug) | 3.5ft (1.0m) 6s |
| Best Surf | 10AM (Thu 6th Aug) | 3.5ft (1.0m) 6s |
| Most Powerful | 10PM (Wed 5th Aug) | 4ft (1.2m) 6s |
Table - best surf conditions forecast for The Boiler over the next 16 days.
The Lowdown
G’day, Rusty here. Look, I’ve had a good look at the charts for the Boiler, and I’m not gonna sugarcoat it—this is a grim stretch ahead. We’re looking at a solid 16-day window with next to nothing worth paddling out for. The only break on the cards is The Boiler, a reef setup that’s inconsistent at the best of times, and unfortunately, this ain’t the best of times.
The water’s sitting at a balmy 69°, which is a whopping 8° warmer than usual for this time of year—very unusual, and it’ll feel like you’re surfing in a bath.
The first real suggestion of any surf doesn’t show up until Wednesday the 5th of August, and even then, it’s a sorry start. We’ve got a 5 ft swell from the WSW, but with a short period of just 7 seconds and a cross-off wind blowing 19 mph, it’s gonna be messy—poor surf conditions, full stop. The combined energy is weak at 163, so don’t get your hopes up. That afternoon gets worse: 5 ft, still short period, and a cross wind at 22 mph making it lumpy. No good.
Thursday the 6th is a bit of a tease. Morning sees a drop to 3 ft from the W, period still short at 6 seconds, but the wind is a gentle cross-off at 9 mph, so it’ll be clean. The energy is a paltry 78. It’s surfable, but very ordinary. The afternoon gets blown out again.
From Friday the 7th through to Tuesday the 11th, it’s basically flat or tiny, with most days showing 0.7 ft to 2 ft and weak energy. The wind windows are poor, with onshore or cross-shore chop. Sunday morning the 9th has a brief moment of glassy conditions on a 2 ft swell, but the energy is only 26—hardly a wave worth chasing.
Things try to tick up a little around Wednesday the 12th of August. The morning has 2 ft from the WSW with a period of 10 seconds, which is a bit longer, but it’s onshore wind and the energy is still just 80. The afternoon sees 3 ft with a moderate cross-shore, and the energy climbs to 121 (moderate), but it’s still a no-go with poor surf quality.
Thursday the 13th brings the biggest swell height of the run so far: 5 ft in the afternoon from the WSW, period 8 seconds, and the combined energy jumps to 322 (moderate). But it’s cross-onshore at 12 mph, making it choppy and poor. Still not worth it.
The best chance in this whole outlook shows up on Sunday the 16th of August. The morning has 6 ft from the WSW, period 7 seconds, with a clean cross-off wind from the NNW at 16 mph. The energy is a solid 334 (moderate). The afternoon is even better: 6 ft, period 8 seconds, same clean cross-off, and energy at 397. This is the standout—it’s the only time the swell gets over 5 ft with clean conditions. But at 6 ft, it’s getting into the “too big for beginners” range, and the short period means it’ll be a bit crumbly and less organized. The reef setup should handle it okay, but don’t expect perfection. The forecast is a week and a half out, so it’s promising but less certain.
After that, Monday the 17th through to Thursday the 20th, it’s back to poor surf with cross-onshore winds and choppy conditions, dropping to 1.0 ft to 3 ft. The energy falls off a cliff.
So, the honest truth: there’s only one real standout in this 16-day window, and that’s Sunday the 16th of August. The rest is a long gap of nothingness. The Boiler is inconsistent, and this run is a perfect example of why. Keep an eye on that Sunday, but don’t hold your breath. Forecasts can change, but right now, it’s lean pickings.
Rusty.
Short Range ForecastMostly dry. Very mild (max 17°C on Wed morning, min 13°C on Wed night). Winds decreasing (fresh winds from the W on Wed afternoon, calm by Thu night). | Days 4-6 Weather SummaryMostly dry. Warm (max 24°C on Sun afternoon, min 16°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||
Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | |||||||||||||||
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 7 | WSW 7 | W 6 | W 6 | WSW 6 | WSW 5 | W 9 | W 9 | SW 12 | SW 9 | WSW 8 | WSW 7 | WSW 7 | W 6 | WSW 6 | SW 6 | W 6 | WSW 6 | W 8 | W 10 | WSW 11 |
Wave Graph | |||||||||||||||||||||
163 | 225 | 106 | 76 | 45 | 9 | 7 | 6 | 5 | 3 | 13 | 41 | 26 | 20 | 12 | 8 | 6 | 4 | 5 | 7 | 24 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-off | cross-off | cross | off | on | cross | off | cross-on | cross | cross-off | glassy | cross | cross-off | cross | cross | cross-off | on | cross | glassy |
High Tide | 11:05AM8.34m | 11:30PM8.31m | 11:51AM7.95m | 00:25AM7.86m | 12:55PM7.55m | 1:42AM7.49m | 2:26PM7.40m | 3:17AM7.49m | 3:58PM7.72m | 4:41AM7.93m | 5:13PM8.36m | 5:50AM8.55m | 6:15PM9.02m | ||||||||
Low Tide | 5:02PM2.18m | 5:31AM2.32m | 5:52PM2.60m | 6:29AM2.77m | 7:06PM3.01m | 7:54AM3.09m | 8:47PM3.09m | 9:32AM2.97m | 10:18PM2.69m | 10:52AM2.46m | 11:32PM2.07m | 11:58AM1.85m | 00:33AM1.47m | ||||||||
5:43 | — | — | 5:46 | — | — | 5:47 | — | — | 5:48 | — | — | 5:50 | — | — | 5:52 | — | — | 5:54 | — | — | |
— | 8:58 | — | — | 8:55 | — | — | 8:53 | — | — | 8:52 | — | — | 8:51 | — | — | 8:49 | — | — | 8:46 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 17 | 16 | 16 | 17 | 15 | 16 | 17 | 16 | 20 | 21 | 19 | 23 | 24 | 19 | 20 | 21 | 20 | 20 | 22 | 19 |
Feels °C | 11 | 10 | 11 | 11 | 12 | 12 | 14 | 14 | 15 | 19 | 18 | 16 | 19 | 20 | 17 | 18 | 18 | 17 | 18 | 21 | 19 |
Swell 1 Height (m) Direction Period (s) | — | — | W 11 | W 10 | W 10 | WSW 5 | WSW 5 | W 9 | WSW 4 | SW 9 | WSW 8 | WSW 7 | WSW 7 | W 8 | WSW 6 | SW 6 | W 6 | W 5 | W 8 | W 10 | WSW 11 |
— | — | 2 | 2 | 8 | 9 | 2 | 6 | 3 | 3 | 13 | 41 | 26 | 1 | 12 | 8 | 5 | 2 | 5 | 7 | 24 | |
Swell 2 Height (m) Direction Period (s) | — | — | W 13 | — | — | W 10 | W 9 | W 6 | W 9 | W 9 | — | — | — | — | W 8 | W 6 | SW 6 | WSW 6 | SW 6 | SW 6 | SW 6 |
— | — | 3 | — | — | 7 | 7 | 1 | 2 | 2 | — | — | — | — | 1 | 1 | 6 | 4 | 2 | 2 | 2 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SW 12 | W 12 | — | SW 12 | — | — | — | — | — | W 8 | W 8 | W 8 | W 8 | W 10 | — | SW 6 |
— | — | — | — | — | 6 | 3 | — | 5 | — | — | — | — | — | 1 | 1 | 1 | 1 | 2 | — | 2 | |
Wind waves Height (m) Direction Period (s) | WSW 7 | WSW 7 | W 6 | W 6 | WSW 6 | — | — | WSW 5 | — | — | — | — | — | W 6 | — | — | — | — | ESE 2 | ESE 2 | SSE 3 |
163 | 225 | 106 | 76 | 45 | — | — | 4 | — | — | — | — | — | 20 | — | — | — | — | 1 | 1 | 1 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 636 | 360 | 360 | 0 | 421 | 351 | 352 | 368 | 368 | 201 | 134 | 14 | 189 | 205 | 188 | 182 | 190 | 189 | 421 | 275 | 14 |
Best forecast wave conditions in Wales - Gower | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
Latest Updates
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.











