Surf Forecasts:
The Boiler surf forecast from 23 Sep 2026:
- Best quality surf: Wednesday 23 Sep, 7PM (local time) - 3ft (0.9m), 13s period, W swell with offshore winds.
- Most powerful swell: Tuesday 29 Sep, 10PM (local time) - 7.5ft (2.3m), 9s period, SW swell with 944 kJ wave energy.
- Next surfable swell (1★+): Wednesday 23 Sep, 1PM (local time) - 2ft (0.6m), 13s 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 Wednesday (Sep 23) at 1PM. The primary swell is predicted to be 0.6m and 13s period with a secondary swell of 0.6m and 9s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at The Boiler in the next 16 days are 2.3m 9s and forecast to arrive on Tuesday (Sep 29) at 10PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 5s period and expected on Saturday (Sep 26) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Wed 23rd Sep) | 2ft (0.6m) 13s |
| Best Surf | 7PM (Wed 23rd Sep) | 3ft (0.9m) 13s |
| Most Powerful | 10PM (Tue 29th Sep) | 7.5ft (2.3m) 9s |
Table - best surf conditions forecast for The Boiler over the next 16 days.
Short Range ForecastMostly dry. Warm (max 20°C on Thu afternoon, min 11°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Sun night. Very mild (max 18°C on Fri afternoon, min 12°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Tue 22 | Wednesday 23 | Thursday 24 | Friday 25 | Saturday 26 | Sunday 27 | Monday 28 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | W 12 | W 11 | WSW 14 | W 13 | W 12 | WSW 11 | WSW 11 | WSW 10 | WSW 16 | W 14 | WSW 13 | W 12 | WSW 11 | WSW 6 | WSW 7 | WSW 7 | WSW 7 | WSW 9 | WSW 8 | WSW 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 98 | 116 | 158 | 125 | 103 | 23 | 22 | 32 | 411 | 423 | 286 | 228 | 126 | 66 | 114 | 204 | 177 | 176 | 67 | 108 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-off | off | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross | off | cross-on | cross-on | cross-on | glassy | glassy | cross |
High Tide | 4:24PM7.46m | 4:52AM7.58m | 5:14PM8.15m | 5:37AM8.24m | 5:55PM8.75m | 6:15AM8.77m | 6:32PM9.20m | 6:50AM9.17m | 7:07PM9.52m | 7:24AM9.45m | 7:41PM9.70m | 7:57AM9.59m | 8:16PM9.74m | |||||||
Low Tide | 10:35PM3.06m | 11:02AM2.86m | 11:23PM2.39m | 11:44AM2.24m | 00:02AM1.84m | 12:19PM1.76m | 00:38AM1.43m | 12:53PM1.42m | 1:11AM1.16m | 1:24PM1.19m | 1:44AM1.02m | 1:56PM1.10m | 2:16AM1.04m | |||||||
 |  |  | |  | | |  | | | |  | | | | |  | | | | |
 | — | — | 7:01 | — | — | 7:03 | — | — | 7:05 | — | — | 7:07 | — | — | 7:09 | — | — | 7:09 | — | — |
 | 7:15 | — | — | 7:13 | — | — | 7:10 | — | — | 7:07 | — | — | 7:06 | — | — | 7:04 | — | — | 7:00 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — |
Temp °C | 18 | 18 | 17 | 16 | 14 | 15 | 20 | 18 | 17 | 18 | 13 | 16 | 16 | 14 | 15 | 16 | 15 | 15 | 16 | 16 |
Feels °C | 19 | 16 | 14 | 12 | 12 | 11 | 18 | 17 | 17 | 17 | 9 | 13 | 13 | 13 | 13 | 12 | 12 | 14 | 15 | 14 |
Swell 1 Height (m) Direction Period (s) | W 12 | W 11 | W 9 | W 13 | W 12 | WSW 8 | WSW 7 | WSW 10 | WSW 16 | W 14 | WSW 13 | W 12 | WSW 11 | WSW 6 | WSW 7 | W 10 | WSW 7 | WSW 9 | WSW 8 | WSW 10 |
| kJ | 98 | 116 | 87 | 125 | 103 | 21 | 10 | 32 | 411 | 423 | 286 | 228 | 126 | 66 | 114 | 90 | 177 | 176 | 67 | 108 |
Swell 2 Height (m) Direction Period (s) | W 20 | WSW 16 | WSW 14 | W 8 | — | WSW 11 | WSW 11 | W 17 | WSW 10 | — | — | WSW 12 | W 14 | W 10 | WSW 10 | W 10 | WSW 9 | — | WSW 11 | — |
| kJ | 8 | 86 | 158 | 33 | — | 23 | 22 | 5 | 31 | — | — | 56 | 4 | 52 | 33 | 50 | 110 | — | 40 | — |
Swell 3 Height (m) Direction Period (s) | — | — | WSW 11 | — | — | — | SSE 3 | — | — | — | — | — | — | — | W 14 | — | — | — | — | — |
| kJ | — | — | 12 | — | — | — | 1 | — | — | — | — | — | — | — | 4 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | W 2 | WNW 4 | — | SE 3 | — | — | — | — | NW 5 | NNW 4 | W 4 | — | — | WSW 7 | — | — | — | — |
| kJ | — | — | 1 | 5 | — | 2 | — | — | — | — | 35 | 7 | 10 | — | — | 204 | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 0 | 48 | 0 | 14 | 20 | 45 | 48 | 1 | 0 | 0 | 0 | 48 | 0 | 19 | 133 | 48 | 0 | 0 | 14 |
Best forecast wave conditions in Wales - Gower | ||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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.
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