Surf Forecasts:
The Boiler surf forecast from 14 Nov 2026:
- Best quality surf: Tuesday 17 Nov, 3PM (local time) - 11ft (3.5m), 11s period, WSW swell with cross-shore winds.
- Most powerful swell: Wednesday 18 Nov, 9PM (local time) - 15ft (4.5m), 16s period, WSW swell with 9,779 kJ wave energy.
- Next surfable swell (1★+): Monday 16 Nov, 9AM (local time) - 4.5ft (1.3m), 10s 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 Monday (Nov 16) at 9AM. The primary swell is predicted to be 1.3m and 10s period with a secondary swell of 0.7m and 6s. 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 4.5m 16s and forecast to arrive on Wednesday (Nov 18) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Sunday (Nov 15) at 6PM.
| Wave Type | Time (GMT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Mon 16th Nov) | 4.5ft (1.3m) 10s |
| Best Surf | 3PM (Tue 17th Nov) | 11ft (3.5m) 11s |
| Most Powerful | 9PM (Wed 18th Nov) | 15ft (4.5m) 16s |
Table - best surf conditions forecast for The Boiler over the next 16 days.
Short Range ForecastHeavy rain (total 35mm), heaviest during Mon night. Very mild (max 13°C on Mon night, min 6°C on Sun night). Mainly near gales. | Days 5-7 Weather SummaryHeavy rain (total 47mm), heaviest during Tue afternoon. Very mild (max 12°C on Wed night, min 10°C on Tue afternoon). Winds decreasing (strong winds from the WSW on Wed afternoon, light winds from the WSW by Thu afternoon). | |||||||||||||||||||
Sat 14 | Sunday 15 | Monday 16 | Tuesday 17 | Wednesday 18 | Thursday 19 | Friday 20 | ||||||||||||||
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) | SW 12 | SW 12 | SW 7 | WSW 7 | WSW 11 | WSW 10 | WSW 9 | WSW 10 | WSW 9 | WSW 11 | WSW 14 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 14 | WSW 13 | WSW 14 | WSW 13 | WSW 11 |
Wave Graph  | ||||||||||||||||||||
 kJ | 37 | 39 | 61 | 236 | 226 | 325 | 197 | 87 | 2043 | 2695 | 6270 | 8112 | 9199 | 8972 | 4338 | 2635 | 2938 | 3662 | 2509 | 831 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | cross-off | cross-off | cross-off | cross-on | cross | cross | cross | cross | cross | cross-on | cross | cross-on | cross | cross-on | cross | cross-on | on |
High Tide | 8:54PM7.96m | 9:14AM7.98m | 9:33PM7.55m | 9:58AM7.58m | 10:23PM7.19m | 10:59AM7.27m | 11:32PM6.97m | 12:16PM7.20m | 00:52AM7.04m | 1:30PM7.44m | 2:03AM7.41m | 2:33PM7.88m | ||||||||
Low Tide | 2:46AM2.86m | 3:16PM3.00m | 3:25AM3.27m | 4:05PM3.37m | 4:20AM3.64m | 5:16PM3.60m | 5:44AM3.83m | 6:38PM3.55m | 7:12AM3.65m | 7:49PM3.21m | 8:19AM3.21m | 8:47PM2.74m | ||||||||
 |  |  |  |  | | |  |  | |  |  | | | | | | | | | |
 | — | — | 7:33 | — | — | 7:35 | — | — | 7:35 | — | — | 7:37 | — | — | 7:39 | — | — | 7:41 | — | — |
 | 4:28 | — | — | 4:27 | — | — | 4:24 | — | — | 4:23 | — | — | 4:22 | — | — | 4:22 | — | — | 4:20 | — |
mm | — | 1 | 10 | 4 | — | — | — | 19 | 1 | 10 | 8 | 5 | 4 | 4 | 2 | 3 | 8 | 3 | 3 | 12 |
Temp °C | 10 | 9 | 11 | 11 | 9 | 7 | 7 | 13 | 11 | 11 | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 13 |
Feels °C | 4 | 3 | 8 | 7 | 1 | 4 | 1 | 7 | 1 | 4 | 2 | 3 | 1 | 5 | 8 | 8 | 7 | 6 | 4 | 5 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 7 | WSW 11 | WSW 11 | WSW 10 | WSW 9 | WSW 10 | — | — | — | — | — | — | WSW 15 | WSW 14 | WSW 13 | WSW 14 | WSW 13 | WSW 11 |
| kJ | 37 | 35 | 61 | 24 | 226 | 325 | 197 | 81 | — | — | — | — | — | — | 4338 | 2635 | 2614 | 3662 | 2509 | 831 |
Swell 2 Height (m) Direction Period (s) | SW 8 | SW 12 | WSW 11 | — | WSW 7 | WNW 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 2 | 35 | 47 | — | 66 | 33 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 4 | SW 6 | — | WSW 7 | NW 5 | — | — | SE 5 | WSW 9 | WSW 11 | WSW 14 | WSW 16 | WSW 16 | WSW 16 | — | — | WSW 13 | — | — | — |
| kJ | 13 | 39 | — | 236 | 35 | — | — | 87 | 2043 | 2695 | 6270 | 8112 | 9199 | 8972 | — | — | 2938 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 162 | 162 | 20 | 9 | 119 | 0 | 14 | 506 | 464 | 417 | 350 | 283 | 204 | 144 | 49 | 74 | 74 | 78 | 143 | 360 |
Best forecast wave conditions in Wales - Gower | ||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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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