The Boiler Surf Break

Lat Long: 51.56° N 4.02° W

The Boiler Surf Forecast and Surf Report

Issued: 6 pm 04 Sep 2026 (local time)

Forecast update in  hr  min

Today's The Boiler sea temperature is
19.7°C
3.6° 

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 4 Sep 2026:

  • Best quality surf: Saturday 5 Sep, 7AM (local time) - 3.5ft (1.1m), 7s period, W swell with cross-offshore winds.
  • Most powerful swell: Monday 7 Sep, 4PM (local time) - 6.5ft (2.0m), 13s period, WSW swell with 1,275 kJ wave energy.
  • Next surfable swell (1★+): Saturday 5 Sep, 7AM (local time) - 3.5ft (1.1m), 7s 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 7AM. The primary swell is predicted to be 1.1m and 7s period with a secondary swell of 0.5m and 9s. 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 2.0m 13s and forecast to arrive on Monday (Sep 07) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Sat 5th Sep)3.5ft (1.1m) 7s
Best Surf 7AM (Sat 5th Sep)3.5ft (1.1m) 7s
Most Powerful 4PM (Mon 7th Sep)6.5ft (2.0m) 13s

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


The Lowdown

Alright folks, Rusty here. Let’s take a look at what’s on offer for The Boiler over the next couple of weeks. I gotta be straight with you – it’s a tough run ahead. This is a reef setup that’s inconsistent at the best of times, and right now, the conditions are just not coming together for a proper paddle session. The whole 16-day window is a bit of a write-off, I’m afraid. The swell is either too small or the wind is just too messy to make it worth your while. There’s a real gap here from the start all the way through, with no standout days to get excited about.

It kicks off on Friday, September 4th with a lumpy 5.9 ft swell from the WSW, but a fresh 22 mph cross-wind has it all chopped up and messy. The water temperature is sitting at 67.5°, which is a whopping 6.5° warmer than normal for this time of year – that’s very unusual, a real warm patch. The combined energy is moderate (420), but the surf quality is just poor. Saturday morning, the 5th, sees a drop in size to 3.3 ft from the W with a cleaner look and a gentle cross-off breeze, but it’s still pretty ordinary. The rest of that weekend and into the next week is a series of small, weak swells or bigger, wind-affected ones. We get a pulse of serious energy on Monday the 7th, with a 5.6 ft to 6.6 ft WSW groundswell and a very long 13-second period. The combined energy is strong (1001 to 1275), but a fresh cross-wind just ruins the surface. This is the kind of energy that would be better at a point or reef, but the wind is the enemy here. For a solid stretch after that, we’re looking at small, clean waves but with next to no size – 0.7 ft to 1.3 ft from the WSW and W. It stays clean with cross-off winds, but there’s nothing to ride. Even into the second week, the 18th and 19th of September, we get some glassy conditions with no wind, but the swell is a pathetic 0.7 ft to 2.0 ft from the E or W. The combined energy is barely a whisper (6 to 10). For a setup that’s already inconsistent, this blank run is pretty normal for the area. There’s just nothing here that’s worth paddling out for. If you’ve got a kite, the days with stronger wind and a bit of lump might be more interesting, but for a surfboard, it’s a hard pass.

Short Range Forecast

Mostly dry. Warm (max 23°C on Sun afternoon, min 14°C on Fri night). Winds decreasing (fresh winds from the W on Fri afternoon, calm by Sat night).

Days 5-7 Weather Summary

Light rain (total 7mm), mostly falling on Mon night. Very mild (max 17°C on Mon afternoon, min 14°C on Mon night). Mainly fresh winds.

Fri
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
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
1
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)
1.8
WSW
8
1.5
W
7
1
W
7
0.9
WSW
7
0.6
WSW
9
0.6
W
9
0.8
WSW
6
0.9
WSW
8
1.7
W
13
2
WSW
13
2.1
WSW
8
1.8
WSW
10
2
WSW
7
1.9
W
8
1.7
W
7
1.5
W
7
1.1
W
6
1.4
WSW
6
1.7
WSW
7
1.5
WSW
8
Wave Graph
Metric surfscale
Energy kJ
416
231
94
75
68
57
44
88
1001
1275
507
603
360
408
311
217
94
135
254
257
Wind (km/h)
35
W
20
WNW
15
WNW
15
WSW
10
SE
25
SE
10
S
20
SW
25
W
30
WSW
25
W
30
W
35
W
30
WNW
25
WNW
30
W
20
WSW
30
SW
30
WSW
20
W
Wind State
cross
cross-off
cross-off
cross-on
cross-on
cross-on
on
cross-on
cross
cross
cross
cross
cross
cross-off
cross-off
cross
cross
cross-on
cross-on
cross
High Tide
00:02AM7.65m
12:36PM7.40m
1:34AM7.19m
2:22PM7.24m
3:19AM7.32m
3:58PM7.71m
4:43AM7.95m
5:11PM8.48m
5:45AM8.68m
6:07PM9.17m
6:36AM9.24m
6:54PM9.63m
Low Tide
5:26PM2.76m
6:02AM3.09m
6:51PM3.32m
7:47AM3.49m
8:54PM3.32m
9:37AM3.19m
10:26PM2.71m
10:56AM2.48m
11:34PM1.96m
11:54AM1.77m
00:27AM1.35m
12:42PM1.26m
1:11AM0.99m
part cloud
clear
clear
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
rain showers
rain showers
rain showers
rain showers
part cloud
cloud
light rain
cloud
cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:33
6:35
6:37
6:37
6:39
6:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:57
7:53
7:52
7:50
7:47
7:45
7:43
 mm
2
1
1
1
2
1
Temp °C
17
16
15
15
15
22
23
18
17
17
16
16
16
15
16
16
15
16
17
18
Feels °C
11
11
13
12
15
18
22
17
11
12
10
10
9
9
9
10
11
11
13
16
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for The Boiler:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our The Boiler surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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.

Nearest locationNearest