The Boiler Surf Break

Lat Long: 51.56° N 4.02° W

The Boiler Surf Forecast and Surf Report

Issued: 12 pm 08 Aug 2026 (local time)

Forecast update in  hr  min

Today's The Boiler sea temperature is
20.6° C
4.4° 

The Boiler surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


The Boiler surf forecast from 8 Aug 2026:

  • Best quality surf: Wednesday 12 Aug, 10PM (local time) - 2.5ft (0.7m), 9s period, WSW swell with glassy winds.
  • Most powerful swell: Thursday 13 Aug, 7PM (local time) - 3.5ft (1.0m), 10s period, W swell with 200 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 12 Aug, 10PM (local time) - 2.5ft (0.7m), 9s period with WSW 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 Wednesday (Aug 12) at 10PM. The primary swell is predicted to be 0.7m and 9s period with a secondary swell of 0.3m and 3s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at The Boiler in the next 16 days are 1.0m 10s and forecast to arrive on Thursday (Aug 13) at 7PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 3s period and expected on Monday (Aug 10) at 4AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)10PM (Wed 12th Aug)2.5ft (0.7m) 9s
Best Surf10PM (Wed 12th Aug)2.5ft (0.7m) 9s
Most Powerful 7PM (Thu 13th Aug)3.5ft (1.0m) 10s

Table - best surf conditions forecast for The Boiler over the next 16 days.


The Lowdown

Alright, let’s get real about The Boiler. Honestly, looking at this whole 16-day window, it’s a pretty flat and frustrating stretch for us. The first week is basically a write-off. We’re talking tiny, weak waves with onshore and cross-shore winds messing up whatever little bump there is. The swell energy is feeble, often in the single digits or low double digits (2, 4, 5), which tells you all you need to know. It’s going to be a lot of bobbing around on a very ordinary, if not poor, surface. Not worth paddling out for unless you’re keen on a float, not a surf.

There is a slight flicker of hope on Thursday the 13th. The early morning session sees the wind go completely glassy, and the swell bumps up a bit to 3ft from the WSW. The energy jumps to a moderate 161, which at least gets things moving. It’s still super small and nothing to write home about, but for a brief moment, it might be the cleanest, most surfable it gets all week.

After that, we’re back into the doldrums. The following days are poor, with small, short-period leftovers and wind that won't give us a break. There’s some clean conditions here and there, but the swell is just too gutless.

Now, looking further out, the second week is where things start to get interesting, though it’s a long way off. The standout potential is Saturday the 22nd. The swell finally pushes up to a more substantial 5ft from the WSW, with strong energy readings (275, 253). This is the real deal compared to what we’ve seen. The catch? The wind is howling from the W at 25 mph, making it a strong cross-shore mess. This is the kind of day that’s going to be blown-out and chaotic. For a surfer, it’s likely a pass unless you’re an expert looking for a battle in the chop. Honestly, with that kind of wind on a reef setup, it looks more interesting for kitesurfing than paddle surfing.

The next day, Sunday the 23rd, is a different story for the morning. The swell is still up at 4ft from the W, and the wind swings around to a cross-offshore NNW at 16 mph. The wave comment even says “clean.” That’s our best bet in the whole window. It’s still not a massive swell, and The Boiler is a reef, so it’ll be handling that energy well, but the size is manageable and the conditions should be far better. Keep in mind, this is a spot that can be inconsistent, so when it does line up, it’s worth a look. But hold your horses – this is more than a week away, so the promise is there, but the certainty is lower. Keep your fingers crossed.

So, overall, the first 10 days are a real struggle. The standout session looks like being Sunday the 23rd. If you can wait it out, that’s the one to aim for.

Rusty

Short Range Forecast

Mostly dry. Warm (max 22°C on Mon afternoon, min 15°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 30°C on Wed afternoon, min 17°C on Tue night). Mainly fresh winds.

Saturday
8
Sunday
9
Monday
10
Tuesday
11
Wednesday
12
Thursday
13
Friday
14
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.1
W
9
0.1
W
9
0.2
WSW
7
0.2
WSW
7
0.4
WSW
3
0.3
W
3
0.2
WSW
7
0.4
WSW
5
0.3
SW
7
0.4
ESE
3
0.2
W
10
0.3
WSW
11
0.5
WSW
10
0.6
WSW
10
0.8
WSW
9
0.9
WSW
11
0.9
WSW
10
0.7
WSW
10
0.7
WSW
9
0.6
WSW
9
0.5
W
8
Wave Graph
Metric surfscale
Energy kJ
2
2
5
4
2
2
4
8
7
3
7
25
57
72
92
161
180
98
84
61
33
Wind (km/h)
15
SE
5
W
5
NNW
10
W
20
W
10
WNW
15
NNW
20
W
15
ENE
30
ESE
10
SE
15
E
30
ESE
15
SSE
5
E
5
SW
25
W
10
WNW
15
W
20
WSW
10
NNW
Wind State
cross-on
cross
off
cross
cross
cross-off
cross-off
cross
cross-off
cross-on
cross-on
cross
cross-on
cross-on
cross
glassy
cross
cross-off
cross
cross-on
cross-off
High Tide
2:26PM7.40m
3:17AM7.49m
3:58PM7.72m
4:41AM7.93m
5:13PM8.36m
5:50AM8.55m
6:15PM9.02m
6:47AM9.10m
7:08PM9.53m
7:37AM9.48m
7:55PM9.82m
8:21AM9.64m
8:38PM9.89m
Low Tide
8:47PM3.09m
9:32AM2.97m
10:18PM2.69m
10:52AM2.46m
11:32PM2.07m
11:58AM1.85m
00:33AM1.47m
12:53PM1.33m
1:26AM1.04m
1:41PM1.00m
2:12AM0.82m
2:23PM0.87m
2:52AM0.81m
cloud
cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
part cloud
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:48
5:50
5:52
5:54
5:54
5:56
5:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:52
8:51
8:49
8:46
8:45
8:43
8:40
 mm
Temp °C
19
21
20
20
20
17
20
22
19
23
26
23
26
30
25
25
25
20
20
20
18
Feels °C
18
19
17
16
16
16
17
17
15
20
24
22
21
25
23
20
22
19
20
19
18
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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