Surf Forecasts:
The Boiler surf forecast from 25 Sep 2026:
- Best quality surf: Friday 25 Sep, 4PM (local time) - 4.5ft (1.3m), 15s period, W swell with offshore winds.
- Most powerful swell: Wednesday 30 Sep, 10AM (local time) - 6.5ft (2.0m), 11s period, SW swell with 864 kJ wave energy.
- Next surfable swell (1★+): Friday 25 Sep, 1PM (local time) - 4ft (1.2m), 15s 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 (Sep 25) at 1PM. The primary swell is predicted to be 1.2m and 15s 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 2.0m 11s and forecast to arrive on Wednesday (Sep 30) at 10AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Friday (Sep 25) at 4PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Fri 25th Sep) | 4ft (1.2m) 15s |
| Best Surf | 4PM (Fri 25th Sep) | 4.5ft (1.3m) 15s |
| Most Powerful | 10AM (Wed 30th Sep) | 6.5ft (2.0m) 11s |
Table - best surf conditions forecast for The Boiler over the next 16 days.
Short Range ForecastMostly dry. Very mild (max 17°C on Sun afternoon, min 13°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 16mm), heaviest on Tue night. Warm (max 20°C on Tue afternoon, min 13°C on Sun night). Winds increasing (calm on Mon morning, fresh winds from the SSE by Tue night). | ||||||||||||||||||||
Friday 25 | Saturday 26 | Sunday 27 | Monday 28 | Tuesday 29 | Wednesday 30 | Thursday 1 | |||||||||||||||
AM | 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) | WSW 16 | W 15 | W 13 | WSW 12 | WSW 11 | W 11 | W 10 | W 10 | WSW 10 | WSW 11 | WSW 11 | WSW 10 | W 10 | WSW 6 | W 11 | SW 11 | WSW 10 | WSW 9 | WSW 12 | WSW 11 | WSW 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 628 | 723 | 427 | 240 | 209 | 57 | 50 | 56 | 285 | 191 | 161 | 83 | 49 | 21 | 58 | 864 | 543 | 173 | 623 | 379 | 175 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | off | cross-off | cross-on | cross-on | cross-on | cross-on | glassy | cross-off | off | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on |
High Tide | 6:15AM8.77m | 6:32PM9.20m | 6:50AM9.17m | 7:07PM9.52m | 7:24AM9.45m | 7:41PM9.70m | 7:57AM9.59m | 8:16PM9.74m | 8:31AM9.59m | 8:51PM9.61m | 9:05AM9.41m | 9:27PM9.29m | 9:41AM9.06m | 10:06PM8.79m | |||||||
Low Tide | 12:19PM1.76m | 00:38AM1.43m | 12:53PM1.42m | 1:11AM1.16m | 1:24PM1.19m | 1:44AM1.02m | 1:56PM1.10m | 2:16AM1.04m | 2:29PM1.16m | 2:49AM1.21m | 3:02PM1.38m | 3:22AM1.55m | 3:38PM1.77m | 4:00AM2.05m | |||||||
 |  |  |  | | | | |  | | | | | | |  | |  |  | |  | |
 | 7:05 | — | — | 7:07 | — | — | 7:09 | — | — | 7:09 | — | — | 7:11 | — | — | 7:13 | — | — | 7:15 | — | — |
 | — | 7:07 | — | — | 7:06 | — | — | 7:04 | — | — | 7:00 | — | — | 6:59 | — | — | 6:57 | — | — | 6:54 | — |
mm | — | — | — | — | — | — | — | — | 6 | — | — | — | — | — | 9 | 1 | — | 3 | 2 | 1 | 8 |
Temp °C | 16 | 15 | 13 | 15 | 15 | 14 | 16 | 17 | 15 | 15 | 16 | 16 | 17 | 20 | 19 | 16 | 16 | 15 | 15 | 16 | 14 |
Feels °C | 15 | 11 | 11 | 12 | 12 | 13 | 14 | 17 | 13 | 15 | 15 | 14 | 14 | 16 | 16 | 12 | 10 | 10 | 12 | 13 | 8 |
Swell 1 Height (m) Direction Period (s) | WSW 16 | W 15 | W 13 | WSW 12 | WSW 11 | WSW 7 | WSW 7 | WSW 6 | WSW 10 | WSW 11 | WSW 11 | WSW 10 | W 10 | WSW 6 | SW 6 | SE 4 | WSW 10 | WSW 9 | WSW 12 | WSW 11 | WSW 10 |
| kJ | 628 | 723 | 427 | 240 | 209 | 47 | 47 | 56 | 285 | 191 | 161 | 83 | 49 | 21 | 34 | 7 | 543 | 173 | 623 | 379 | 175 |
Swell 2 Height (m) Direction Period (s) | — | — | — | WSW 12 | — | W 11 | W 10 | W 10 | WSW 10 | — | — | — | — | — | W 11 | — | W 16 | SW 11 | — | — | — |
| kJ | — | — | — | 82 | — | 57 | 50 | 49 | 85 | — | — | — | — | — | 58 | — | 5 | 134 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | W 14 | — | — | — | — | — | — | — | WSW 11 | — | — | WSW 12 | — | — | — |
| kJ | — | — | — | — | — | — | 4 | — | — | — | — | — | — | — | 12 | — | — | 50 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | WNW 2 | — | — | — | — | — | — | — | — | — | ESE 2 | SE 3 | SSE 3 | SE 4 | SW 11 | WSW 10 | — | — | — | — |
| kJ | — | 1 | — | — | — | — | — | — | — | — | — | 1 | 3 | 4 | 11 | 864 | 333 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 9 | 0 | 0 | 14 | 133 | 1 | 19 | 0 | 0 | 0 | 13 | 19 | 45 | 252 | 320 | 116 | 254 | 67 | 67 | 19 | 39 |
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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