The Boiler Surf Break

Lat Long: 51.56° N 4.02° W

The Boiler Surf Forecast and Surf Report

Issued: 12 pm 24 Aug 2026 (local time)

Forecast update in  hr  min

Today's The Boiler sea temperature is
20.4°C
4.2° 

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 24 Aug 2026:

  • Best quality surf: Friday 28 Aug, 1PM (local time) - 3.5ft (1.0m), 7s period, WSW swell with cross-offshore winds.
  • Most powerful swell: Monday 31 Aug, 1AM (local time) - 8ft (2.5m), 8s period, WSW swell with 807 kJ wave energy.
  • Next surfable swell (1★+): Friday 28 Aug, 1PM (local time) - 3.5ft (1.0m), 7s 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 Friday (Aug 28) at 1PM. The primary swell is predicted to be 1.0m and 7s period. 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 2.5m 8s and forecast to arrive on Monday (Aug 31) at 1AM. 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+) 1PM (Fri 28th Aug)3.5ft (1.0m) 7s
Best Surf 1PM (Fri 28th Aug)3.5ft (1.0m) 7s
Most Powerful 1AM (Mon 31st Aug)8ft (2.5m) 8s

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 coming up for The Boiler. I’ll be straight with you – it’s a lean run for a while. The Boiler is an inconsistent reef setup, so when it’s off, it’s off. We’ve got a long stretch of nothing really surfable, so you might want to keep the boards in the car for other things.

The first real chance to even think about paddling out doesn’t show up until Wednesday, the 2nd of September. The morning is the pick. We’ve got a clean 7 ft swell from the WSW, with a light cross-off breeze from the NW. The wave energy is strong (522), and the wind should keep things tidy. It’s a solid intermediate wave, but with that size, it’s likely too much for beginners. The afternoon looks a bit more marginal, with a drop to 6 ft, but still clean.

The water temperature is sitting at 69°F, which is much warmer than normal for this time of year – a solid 8°F warmer than average. That’s unusual, so you can leave the thicker wetsuit at home.

After that, the 3rd of September (Thursday) offers a quieter option. Morning has a 4 ft WSW swell with glassy conditions. The energy is moderate (140), and it’s surfable, but it’s pretty ordinary. The afternoon is similar, with 3 ft and glassy winds. Not a standout, but a session if you’re desperate.

The next week looks patchy. There’s a window on Saturday the 5th of September morning with a clean 5 ft swell and glassy conditions, but the energy is moderate (233). Through the rest of the second week, the swell sticks around but the wind is messy. There’s a big, very long-period swell (17 seconds) on the 8th of September, pushing 6 ft to 6 ft, and strong energy (over 2000), but the wind is onshore and lumpy. That’s a no-go for clean surfing – that kind of long-period groundswell is best at a point or reef, but not with that wind.

All in all, Wednesday the 2nd of September morning is the only true standout. Get in while it’s clean.

Rusty.

Short Range Forecast

Moderate rain (total 12mm), heaviest on Wed night. Warm (max 24°C on Mon afternoon, min 15°C on Mon night). Winds decreasing (fresh winds from the E on Mon night, calm by Wed afternoon).

Days 4-6 Weather Summary

Moderate rain (total 10mm), heaviest on Sat morning. Warm (max 21°C on Thu morning, min 15°C on Thu night). Mainly fresh winds.

Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
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)
0.2
WSW
9
0.6
E
4
0.6
E
4
0.6
E
3
0.4
E
3
0.2
W
10
0.3
W
9
0.3
W
8
0.3
W
8
0.3
W
7
0.9
SW
6
1.7
SW
7
1.3
WSW
7
1.3
W
7
0.8
W
6
1.2
WSW
6
2.5
WSW
7
1.8
WSW
8
1.4
WSW
8
1.7
WSW
7
2.5
WSW
8
Wave Graph
Metric surfscale
Energy kJ
8
9
9
8
3
8
14
12
10
10
58
303
155
172
41
103
637
418
245
320
807
Wind (km/h)
30
E
20
E
35
E
30
E
10
ENE
20
SE
15
SE
0
WSW
15
ESE
20
SSE
15
WSW
20
SSE
35
ENE
25
NW
20
W
25
S
35
WSW
30
W
25
SSW
35
WSW
45
WSW
Wind State
cross
cross
cross-off
cross
cross-off
cross-on
cross-on
glassy
cross
on
cross-on
cross-on
cross-off
cross-off
cross
on
cross
cross
on
cross-on
cross
High Tide
4:55PM7.57m
5:22AM7.63m
5:45PM8.16m
6:07AM8.18m
6:26PM8.66m
6:45AM8.62m
7:02PM9.05m
7:20AM8.96m
7:36PM9.33m
7:53AM9.20m
8:09PM9.52m
8:25AM9.34m
8:42PM9.58m
Low Tide
10:37AM3.32m
11:04PM2.94m
11:31AM2.75m
11:52PM2.38m
12:13PM2.23m
00:32AM1.92m
12:49PM1.83m
1:08AM1.55m
1:22PM1.53m
1:41AM1.29m
1:53PM1.31m
2:12AM1.13m
2:23PM1.21m
2:43AM1.09m
clear
clear
part cloud
cloud
light rain
part cloud
part cloud
rain showers
mod rain
part cloud
thunderstorm
part cloud
part cloud
clear
rain showers
mod rain
rain showers
part cloud
light rain
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:13
6:16
6:16
6:18
6:20
6:22
6:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:21
8:19
8:15
8:14
8:12
8:09
8:07
 mm
1
1
10
1
1
6
2
1
5
4
Temp °C
21
24
20
20
24
20
19
21
20
21
20
17
19
21
18
17
18
17
19
17
16
Feels °C
15
18
14
17
22
20
19
22
20
19
18
14
17
16
16
14
13
12
15
12
9
  • Map Icons:
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  • 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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