The Boiler Surf Break

Lat Long: 51.56° N 4.02° W

The Boiler Surf Forecast and Surf Report

Issued: 12 pm 26 Jul 2026 (local time)

Forecast update in  hr  min

Today's The Boiler sea temperature is
20.6° C
4.7° 

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 26 Jul 2026:

  • Best quality surf: Sunday 26 Jul, 10PM (local time) - 4ft (1.2m), 7s period, W swell with cross-offshore winds.
  • Most powerful swell: Sunday 26 Jul, 4PM (local time) - 4.5ft (1.4m), 7s period, W swell with 203 kJ wave energy.
  • Next surfable swell (1★+): Sunday 26 Jul, 10PM (local time) - 4ft (1.2m), 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 Sunday (Jul 26) at 10PM. The primary swell is predicted to be 1.2m 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 1.4m 7s and forecast to arrive on Sunday (Jul 26) at 4PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 2s period and expected on Saturday (Aug 01) at 10PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)10PM (Sun 26th Jul)4ft (1.2m) 7s
Best Surf10PM (Sun 26th Jul)4ft (1.2m) 7s
Most Powerful 4PM (Sun 26th Jul)4.5ft (1.4m) 7s

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


The Lowdown

Alright, Rusty here. Let’s have a look at what’s coming in the next couple of weeks for you.

First up, it’s a rough start. Honestly, for the first week or so, there’s nothing much going on. The Boiler (reef) is inconsistent at the best of times, and right now it’s just flat or messy. The water’s sitting at a very unusual 69°F, which is much warmer than normal for this time of year. Through the end of July and into the first few days of August, we’ve got a mix of cross-shore and cross-onshore winds with tiny, short-period windswell. The combined energy barely gets into double digits most days, peaking around 243 on the 26th July, but with a 19 mph cross-offshore wind and a short 7-second period, it’s just not worth paddling out.

There’s a long gap here with no real recommendation. From the 26th July right up until the morning of Sunday, 2nd August, it’s all poor surf conditions. That’s about a week of nothing.

But then, Sunday morning the 2nd of August gives us a faint glimmer. The wind goes glassy – dead calm – with a 3ft swell from the WSW, and a longer 10-second period. The combined energy jumps to 163, which is moderate. It’s just about surfable, but the wave comment is “surfable waves but very ordinary conditions”, so it’s not a standout. The afternoon gets messy with a cross-onshore breeze, so the window is tight.

After that, we slide back into a run of poor surf through to the 6th of August. There are a few cleaner moments in between, but the swell is tiny. The 6th August afternoon offers a 5ft SW swell with a clean cross-offshore wind, combined energy 135, but still a short 6-second period.

Now, here’s the only real standout in the whole 16-day window: Friday morning, 7th August. An 8ft swell from the WSW with a 9-second period and moderate cross-shore wind. The combined energy is massive – 1256 – strong to very strong wave energy. That’s a solid winter swell, but it’s big. Over 8ft means it’s strictly for experienced surfers only, and with a period of 9 seconds it’s not the cleanest groundswell. The Boiler is a reef, so it might handle that size, but the wind is cross-shore, which will mess up the face. Conditions are marginal, and the afternoon gets trashed by 25 mph rain and strong cross-onshore winds. So if you’re an expert, that Friday morning window might be your one shot, but it’s not clean.

Through the rest of the second week, it’s all small and mostly clean but unrideable. Winds turn offshore at times on the 8th and 9th August, but the swell drops away to under 3ft. Combined energy sits around 21 to 138, just not enough push for a proper session.

Bottom line: this is a grim two weeks for The Boiler. The reef is inconsistent and rarely breaks clean anyway, and the forecasts are showing mostly weak, short-period junk. The only chance for experienced crew is that Friday 7th August morning, and even then it’s marginal. Nobody’s getting a classic session here.

Stay patient, forecasts can change. But right now, this spot is best left alone.

Rusty

Short Range Forecast

Mostly dry. Warm (max 22°C on Tue afternoon, min 13°C on Sun night). Winds decreasing (fresh winds from the WNW on Sun afternoon, calm by Tue night).

Days 4-6 Weather Summary

Mostly dry. Warm (max 24°C on Wed morning, min 13°C on Thu night). Mainly fresh winds.

Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
Friday
31
Saturday
1
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
1
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)
1.6
W
7
1.4
W
7
1.1
W
7
1
W
6
1
WSW
6
0.9
WSW
6
0.7
W
6
0.5
W
5
0.4
WSW
5
0.3
WSW
5
0.4
WSW
5
0.2
W
10
1.2
WSW
6
1.3
WSW
7
1
W
6
0.9
WSW
6
0.9
WSW
6
0.5
W
5
0.8
W
6
0.7
W
6
0.2
W
10
Wave Graph
Metric surfscale
Energy kJ
240
203
113
81
77
56
33
14
7
4
8
8
91
137
80
66
64
13
41
31
7
Wind (km/h)
30
WNW
30
WNW
25
WNW
20
W
25
WSW
15
SW
10
SW
10
W
5
N
10
SE
20
WSW
15
WSW
25
WSW
25
WSW
15
WNW
10
W
30
W
10
W
5
WNW
20
WSW
10
NNW
Wind State
cross-off
cross-off
cross-off
cross
cross
cross-on
cross-on
cross
off
cross-on
cross
cross
cross
cross
cross-off
cross
cross
cross-off
glassy
cross
cross-off
High Tide
5:18PM7.78m
5:41AM7.77m
6:06PM8.20m
6:27AM8.12m
6:47PM8.55m
7:06AM8.42m
7:24PM8.82m
7:42AM8.66m
7:59PM9.04m
8:16AM8.84m
8:33PM9.18m
8:49AM8.96m
9:07PM9.24m
Low Tide
10:57AM2.97m
11:22PM2.74m
11:49AM2.60m
00:10AM2.37m
12:31PM2.27m
00:51AM2.06m
1:08PM1.99m
1:28AM1.79m
1:43PM1.77m
2:03AM1.57m
2:15PM1.60m
2:37AM1.43m
2:47PM1.51m
3:09AM1.37m
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
part cloud
cloud
cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:28
5:31
5:31
5:33
5:35
5:37
5:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:14
9:12
9:10
9:08
9:07
9:06
9:05
 mm
Temp °C
19
19
17
17
18
18
19
22
21
24
23
18
18
17
16
16
16
16
16
16
15
Feels °C
14
13
14
13
15
17
18
21
21
23
20
17
14
12
13
11
10
13
13
11
12
  • 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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