The Boiler Surf Break

Lat Long: 51.56° N 4.02° W

The Boiler Surf Forecast and Surf Report

Issued: 6 am 31 Jul 2026 (local time)

Forecast update in  hr  min

Today's The Boiler sea temperature is
19.5° C
3.5° 

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 31 Jul 2026:

  • Most powerful swell: Monday 3 Aug, 4PM (local time) - 2.5ft (0.8m), 9s period, WSW swell with 90 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 0.8m 9s and forecast to arrive on Monday (Aug 03) 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 0.3m 3s period and expected on Thursday (Aug 06) at 4AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 4PM (Mon 3rd Aug)2.5ft (0.8m) 9s

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


The Lowdown

Alright, this is Rusty, and I’m lookin’ at the outlook for The Boiler. Gotta be straight with you—this is a tough stretch. The whole 16-day window is a total write-off. There’s no surf on offer here worth paddling out for. Not a single day, not a single session. The swell is tiny, the energy is weak, and the conditions just aren’t lining up.

Let’s walk through it. We start Friday, July 31st, with a clean little 2ft swell from the west with a 5-second period—that’s barely a ripple. The combined energy is a measly 15, and it’s described as “poor surf conditions.” No score to speak of. The wind is offshore in the morning, but the swell is so small it’s not worth the wax. The water temperature is 67°F, which is a massive 6°F warmer than normal for this time of year—that’s very unusual.

The whole first week is a bust. Saturday, August 1st, you get a bump in energy to 38, but it’s still only 2ft and the wind is cross-off. Sunday the 2nd goes glassy in the afternoon with a 1ft swell, but the wave comment is still poor. Monday the 3rd sees the energy climb to 68 and 90, but the swell height maxes out at 3ft and the wind is messy. It’s all cross-shore or onshore chop. The wind state descriptions are all “gentle cross-onshore,” “light cross-shore,” or “moderate cross-onshore and choppy.” Not a single session that’s clean and rideable.

The second week is no better. From August 5th to the 15th, the swell never gets above 3ft, and most of the time it’s around 1ft to 2ft. The period is short—mostly 6 to 9 seconds. The combined energy peaks at 91 on the 14th, but that’s still low. The wind is either cross-on, ominous onshore, or just cross. The wave comment on every single record is “poor surf conditions.” The best you get is a “gentle offshore and clean” on the morning of the 5th, but the swell is 2ft with a 7-second period—not enough to surf.

Between August 7th and 10th, the energy drops to single digits and low teens—5, 8, 13, 14. It’s dead. The last few days, from the 11th to the 15th, the energy hovers between 35 and 91, but the swell is still tiny and the wind is inconsistent. The afternoon of the 15th has a 3ft swell from the west, but the wind is cross and the period is a weak 6 seconds.

So, what’s the best on offer? Honestly, there isn’t one. There’s no standout. The only time you might even consider it is the glassy afternoon of Sunday, August 2nd, with the 1ft swell and 8-second period, but that’s a knee-high dribbler at best. The combined energy was 16—weak. It’s not surfable.

The Boiler is an inconsistent reef break, and this run shows why. When the swell is this small and the wind is this variable, it just doesn’t work. The offshore wind direction for the break is from the south-west, and the swell is coming from the west or south-west, so the direction is fine, but there’s just no power.

This is a blank run. It’s a 16-day dead period. No recommendations, no options. You’re better off doing something else.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 25°C on Sun afternoon, min 14°C on Fri night). Winds decreasing (fresh winds from the W on Fri afternoon, calm by Sun afternoon).

Days 4-6 Weather Summary

Some drizzle, heaviest during Mon night. Warm (max 23°C on Mon morning, min 13°C on Wed night). Wind will be generally light.

Friday
31
Saturday
1
Sunday
2
Monday
3
Tuesday
4
Wednesday
5
Thursday
6
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
0
0
0
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)
0.5
W
5
0.8
W
4
0.5
W
4
0.6
W
5
0.6
W
5
0.4
WSW
8
0.3
WSW
8
0.3
WSW
8
0.4
WSW
10
0.7
WSW
9
0.8
WSW
9
0.6
WSW
8
0.6
WSW
8
0.9
WSW
7
0.7
WSW
7
0.5
SW
7
0.6
WSW
7
0.5
WSW
6
0.4
WSW
6
0.4
SW
6
0.4
SW
6
Wave Graph
Metric surfscale
Energy kJ
12
19
9
19
16
24
13
13
38
68
90
45
42
86
46
23
30
23
16
10
9
Wind (km/h)
15
WNW
30
W
10
WNW
15
W
20
W
10
N
15
SE
5
E
10
SE
15
SE
10
W
10
NNE
15
SSW
20
WSW
10
SW
15
NNW
25
NNW
20
NNW
20
NNW
25
NW
15
NNW
Wind State
cross-off
cross
cross-off
cross-off
cross
off
cross-on
glassy
cross-on
cross-on
cross
off
on
cross-on
cross-on
off
cross-off
off
cross-off
cross-off
off
High Tide
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
11:51AM7.95m
00:25AM7.86m
Low Tide
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
5:31AM2.32m
5:52PM2.60m
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
rain showers
part cloud
part cloud
clear
part cloud
clear
clear
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:37
5:37
5:39
5:41
5:43
5:43
5:46
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:06
9:05
9:02
9:00
9:00
8:58
8:55
 mm
1
Temp °C
17
17
16
17
17
16
20
25
22
23
23
20
20
20
18
19
20
15
18
19
14
Feels °C
12
11
13
13
12
14
16
22
20
20
20
17
18
18
18
15
15
10
13
13
10
  • 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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