The Boiler Surf Break

Lat Long: 51.56° N 4.02° W

The Boiler Surf Forecast and Surf Report

Issued: 12 am 01 Sep 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 1 Sep 2026:

  • Best quality surf: Monday 7 Sep, 10PM (local time) - 3.5ft (1.1m), 11s period, W swell with cross-offshore winds.
  • Most powerful swell: Friday 4 Sep, 1AM (local time) - 7ft (2.2m), 7s period, WSW swell with 462 kJ wave energy.
  • Next surfable swell (1★+): Saturday 5 Sep, 4AM (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 Saturday (Sep 05) at 4AM. The primary swell is predicted to be 1.0m and 6s period with a secondary swell of 0.1m and 14s. 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 2.2m 7s and forecast to arrive on Friday (Sep 04) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Monday (Sep 07) at 4PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Sat 5th Sep)3.5ft (1.0m) 6s
Best Surf10PM (Mon 7th Sep)3.5ft (1.1m) 11s
Most Powerful 1AM (Fri 4th Sep)7ft (2.2m) 7s

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


The Lowdown

Alright, listen up. It’s Rusty here, and I’ve been staring at the charts for The Boiler, and I gotta be straight with you – the next couple of weeks are looking pretty grim. There’s a real dry spell on the cards, so don’t go getting your hopes up too early.

The whole stretch is a bit of a write-off, to be honest. For the first few days, it’s all onshore slop. We're talking cross-onshore winds and lumpy, choppy conditions with weak, short-period swell. The energy’s just not there, barely getting into double digits. It’s the kind of surf that’s more frustrating than fun.

There’s a little bump mid-week on the 4th, but the wind is howling, so even though it’s clean, it’s just not making the grade. It’s not until the morning of the 5th that things settle down. Winds go light and offshore, and we get a clean but small 3ft of WSW swell. It’s surfable, but it’s ordinary. Not exactly firing.

Then we go flat again. From the 6th through to the 9th, we’ve got a proper dead zone. The swell disappears and conditions are just messy. The swell energy is in the low hundreds, but it's all onshore junk. That bigger pulse of 8ft that shows up on the 8th? Forget it. It comes with a full-on gale, so that’s a hard pass. That setup is more interesting for the kite crew than for us paddle surfers.

We finally get a bit of life back on the 11th. The Boiler sees a solid 5ft to 6ft of WSW swell, and it’s got some push to it, with the energy jumping into the 400s. But the wind is light and onshore, and while it’s not messy, it’s not clean either. It’s a marginal call at best. The Saturday morning of the 12th is your best bet – it goes glassy for a second, with a clean 4ft of WSW swell. It’s a chance for a few waves, but it's still not the standout we’re looking for.

After that, we’re back to small, weak, and mostly crummy. There’s a little pulse of long-period groundswell on the morning of the 15th, with 3ft at 12 seconds and clean conditions with light offshore winds. It could be fun on the reef, but it's small.

Honestly, the pick of the whole run is that glassy morning on the 12th. It's clean, it's rideable, but it's not big. The Boiler is a reef break, so that long-period energy will hold up well, but the size is just not there. Look, this spot is always inconsistent, so a blank run isn't unheard of, and the models will change. Keep an eye out, but don't sell your board.

That’s all I’ve got. Hang loose.

Rusty

Short Range Forecast

Light rain (total 6mm), mostly falling on Tue afternoon. Very mild (max 19°C on Thu afternoon, min 16°C on Mon night). Mainly fresh winds.

Days 4-6 Weather Summary

Some drizzle, heaviest during Thu night. Warm (max 20°C on Sun afternoon, min 13°C on Fri night). Winds decreasing (strong winds from the WSW on Thu night, calm by Sat night).

Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
Monday
7
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
1
0
0
1
0
0
0
0
0
0
0
1
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
9
1
WSW
5
0.9
WSW
5
0.9
WSW
6
1.8
WSW
7
1.5
WSW
7
1.4
WSW
7
1.6
WSW
7
2.2
WSW
7
1.5
WSW
8
1.4
WSW
8
1
W
6
0.8
WSW
6
0.6
WSW
9
0.5
W
9
0.4
WSW
9
0.4
WSW
6
0.4
WSW
8
0.5
WSW
12
0.9
WSW
11
1.1
WSW
10
Wave Graph
Metric surfscale
Energy kJ
39
42
42
55
306
242
208
249
462
259
232
86
55
61
41
26
11
26
82
194
265
Wind (km/h)
20
WSW
25
WSW
20
WSW
25
S
30
SW
30
SW
25
WSW
30
SW
40
WSW
25
WNW
30
W
20
NW
10
WNW
15
WSW
5
NE
20
ESE
20
SSE
15
SE
15
SW
15
WSW
10
NW
Wind State
cross-on
cross-on
cross
on
cross-on
cross-on
cross
cross-on
cross-on
cross-off
cross-off
cross-off
cross-off
cross
cross-off
cross-on
cross-on
cross-on
cross-on
cross
cross-off
High Tide
9:28AM9.22m
9:48PM9.24m
10:01AM8.93m
10:23PM8.83m
10:38AM8.51m
11:04PM8.29m
11:24AM7.96m
00:02AM7.65m
12:36PM7.40m
1:34AM7.19m
2:22PM7.24m
3:19AM7.32m
3:58PM7.71m
Low Tide
3:24PM1.39m
3:45AM1.48m
3:57PM1.70m
4:20AM1.90m
4:35PM2.16m
5:02AM2.45m
5:26PM2.76m
6:02AM3.09m
6:51PM3.32m
7:47AM3.49m
8:54PM3.32m
9:37AM3.19m
10:26PM2.71m
clear
rain showers
light rain
rain showers
rain showers
part cloud
part cloud
part cloud
light rain
cloud
part cloud
clear
clear
part cloud
clear
part cloud
cloud
clear
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:26
6:28
6:30
6:31
6:33
6:35
6:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:02
8:00
7:59
7:57
7:53
7:52
7:50
 mm
2
2
1
1
1
Temp °C
17
17
17
18
18
18
18
19
19
16
17
16
15
16
14
18
20
18
20
20
17
Feels °C
14
13
14
14
14
15
15
16
14
13
11
12
12
13
13
14
16
15
18
18
17
  • 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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