The Boiler Surf Break

Lat Long: 51.56° N 4.02° W

The Boiler Surf Forecast and Surf Report

Issued: 12 pm 03 Aug 2026 (local time)

Forecast update in  hr  min

Today's The Boiler sea temperature is
20.2° C
4.1° 

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 3 Aug 2026:

  • Most powerful swell: Wednesday 5 Aug, 1PM (local time) - 5.5ft (1.7m), 7s period, WSW swell with 327 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 1.7m 7s and forecast to arrive on Wednesday (Aug 05) at 1PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Sunday (Aug 09) at 4PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 1PM (Wed 5th Aug)5.5ft (1.7m) 7s

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


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s on the cards for The Boiler.

To be straight up with you, the outlook over the next 16 days is pretty grim. We’re looking at a long, flat stretch with barely any surf to speak of. The first recommendation pops up on Monday the 3rd of August, but honestly, it’s a tough one to get excited about. The whole run is a series of poor surf conditions, and there’s no standout window worth paddling out for. We’ve got a couple of windows with some energy, but the wind and quality just aren’t there. Expect a lot of waiting.

Let’s break it down. Monday the 3rd starts off small with swell around 3ft from the WSW, but the wind is a cross-onshore SE breeze at 12 mph, so it’s choppy and messy. The combined energy is weak at 84. That afternoon the wind switches to a cross-shore from the W at 9 mph, but the swell drops to 2ft. Still no good. The water temp is sitting at 68°, which is much warmer than normal for this time of year – a solid 7° above average, so it’s a weird one.

Tuesday the 4th sees a slight bump in swell to 3ft on the morning, with cross-onshore SW wind at 12 mph. The combined energy picks up to 154, but it’s still choppy and poor. The afternoon gets a bit more wind from the SW at 16 mph, with a 4ft swell – still not clean.

Wednesday the 5th is the biggest we get, with swell hitting 6ft from the WSW, but it’s accompanied by a fresh cross-shore wind at 22 mph. That’s lumpy, messy, and not fun for paddling. Combined energy sits at 310, so there’s some juice, but the quality is a write-off. This setup is more interesting for kite surfing than paddle surfing.

Thursday the 6th offers a small window of cleaner conditions in the morning with a cross-offshore WNW wind at 12 mph and a 4ft swell, but the combined energy is only 131. The afternoon turns lumpy again with a cross-shore W wind at 19 mph. It’s a tease, but not worth a session.

From Friday the 7th onwards, it’s a slow decline into tiny, weak surf. By Saturday the 8th, the swell drops to 0.3ft, and while we get a glassy moment on Sunday the 9th afternoon with a NW wind at 3 mph and a 2ft swell, the combined energy is a pitiful 47. The rest of the week and into the second week is flat, with the occasional 1.0ft to 2ft bump but never with good enough conditions. The last chance is Sunday the 16th morning with a clean offshore NNW wind at 9 mph and a 2ft swell, but that’s a long way off and still tiny.

The Boiler is an inconsistent reef break that needs a proper SW swell and clean winds to fire. This run has none of that. If you’re desperate, the Thursday morning on the 6th is the closest to being rideable, but it’s far from a standout. Otherwise, it’s a blank spell that looks normal for the area.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 23°C on Mon morning, min 13°C on Wed night). Winds increasing (calm on Mon night, fresh winds from the W by Wed morning).

Days 4-6 Weather Summary

Mostly dry. Very mild (max 18°C on Fri afternoon, min 14°C on Thu night). Mainly fresh winds.

Monday
3
Tuesday
4
Wednesday
5
Thursday
6
Friday
7
Saturday
8
Sunday
9
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)
0.8
WSW
9
0.7
WSW
9
0.6
WSW
8
1
WSW
7
1.1
SW
7
1.4
WSW
6
1.7
WSW
7
1.7
WSW
7
1.4
WSW
7
1.2
W
7
1.1
W
6
0.6
W
5
0.4
WSW
5
0.4
WSW
5
0.2
W
9
0.1
W
9
0.1
W
9
0.3
WSW
8
0.8
WSW
8
0.7
WSW
7
0.5
W
6
Wave Graph
Metric surfscale
Energy kJ
84
65
45
111
119
145
310
310
180
126
86
20
8
8
6
2
2
13
66
47
18
Wind (km/h)
20
SE
15
W
5
S
20
SW
25
SW
30
WSW
35
W
35
W
25
WNW
20
WNW
30
W
10
N
10
SSE
20
W
10
NW
5
W
20
WSW
10
NNW
10
SE
5
NW
10
NE
Wind State
cross-on
cross
glassy
cross-on
cross-on
cross-on
cross
cross
cross-off
cross-off
cross
off
on
cross
cross-off
cross
cross
off
cross-on
glassy
cross-off
High Tide
10:13PM9.00m
10:28AM8.65m
10:49PM8.70m
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
Low Tide
3:50PM1.63m
4:14AM1.63m
4:23PM1.85m
4:49AM1.92m
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
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
cloud
clear
clear
clear
part cloud
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:41
5:43
5:43
5:46
5:47
5:48
5:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:00
9:00
8:58
8:55
8:53
8:52
8:51
 mm
Temp °C
23
23
20
19
19
18
16
17
17
16
16
15
17
18
16
17
18
18
23
28
24
Feels °C
20
20
19
17
17
14
9
10
12
10
10
11
15
14
14
14
14
16
22
26
22
  • 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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