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Boiler Left Surf Forecast
/ Wales – Gower (29 surf breaks) /
Boiler Left surfForecast / Wales – Gower / UK
12 Day Weather and Surf, issued 12 am Saturday 17 May 2025 BST
Best Forecast Surf Conditions for Boiler Left this week:
The surf forecast for Boiler Left over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (May 17) at 10PM. The primary swell is predicted to be 2ft and 12s period with a secondary swell of 1ft and 10s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Boiler Left in the next 12 days are 4ft 10s and forecast to arrive on Saturday (May 24) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2ft 3s period and expected on Wednesday (May 21) at 7PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Sat 17th May) | 2ft (0.6m) 12s |
| Best Surf | 10PM (Sat 17th May) | 2ft (0.6m) 12s |
| Most Powerful | 1AM (Sat 24th May) | 4ft (1.2m) 10s |
Table - best surf conditions forecast for Boiler Left over the next 12 days.
Saturday 17 | Sunday 18 | Monday 19 | Tuesday 20 | Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | Sunday 25 | Monday 26 | Tuesday 27 | Wed 28 | |||||||||||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  |  | |||||||||||||||||||||||
| Wave Height (ft) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 11 | 11 | 10 | 12 | 11 | 10 | 10 | 9 | 9 | 8 | 12 | 11 | 10 | 10 | 10 | 9 | 9 | 8 | 13 | 11 | 11 | 10 | 6 | 6 | 7 | 8 | 9 | 10 | 10 | 10 | 6 | 8 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 43 | 39 | 36 | 147 | 167 | 115 | 55 | 32 | 31 | 27 | 27 | 59 | 51 | 48 | 31 | 26 | 26 | 23 | 17 | 48 | 88 | 275 | 128 | 206 | 192 | 75 | 259 | 94 | 100 | 75 | 212 | 654 | 477 | 511 | 449 | 322 |
Wind (mph) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | cross- off | on | off | cross- off | cross- on | cross- off | cross- off | cross- off | off | cross | cross | cross | cross | cross | cross- off | cross- on | cross | cross | on | on | cross- on | on | on | cross | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | on | cross- on | cross- on | cross- on |
High Tide / height (ft) | 9:47AM 22.93 | 10:08PM 23.13 | 10:31AM 21.95 | 10:55PM 22.25 | 11:23AM 21.06 | 11:51PM 21.59 | 12:26PM 20.51 | 12:57AM 21.39 | 1:37PM 20.6 | 2:09AM 21.88 | 2:49PM 21.56 | 3:17AM 23.07 | 3:53PM 23.13 | 4:18AM 24.64 | 4:49PM 24.87 | 5:13AM 26.15 | 5:40PM 26.48 | 6:04AM 27.36 | 6:29PM 27.69 | 6:53AM 28.02 | 7:16PM 28.28 | 7:40AM 28.02 | ||||||||||||||
Low Tide / height (ft) | 3:29AM 5.02 | 3:44PM 5.54 | 4:10AM 5.97 | 4:28PM 6.46 | 5:01AM 6.82 | 5:23PM 7.32 | 6:05AM 7.35 | 6:32PM 7.78 | 7:20AM 7.25 | 7:48PM 7.51 | 8:33AM 6.4 | 9:00PM 6.46 | 9:37AM 4.99 | 10:02PM 4.92 | 10:33AM 3.45 | 10:57PM 3.28 | 11:24AM 2.1 | 11:48PM 1.84 | 12:13PM 1.15 | 12:36AM 0.85 | 12:59PM 0.75 | 1:24AM 0.49 | 1:45PM 0.95 | |||||||||||||
Saturday 17 | Sunday 18 | Monday 19 | Tuesday 20 | Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | Sunday 25 | Monday 26 | Tuesday 27 | Wed 28 | |||||||||||||||||||||||||
| Sunrise | - | 5:22 | - | - | 5:20 | - | - | 5:20 | - | - | 5:18 | - | - | 5:16 | - | - | 5:16 | - | - | 5:13 | - | - | 5:13 | - | - | 5:11 | - | - | 5:11 | - | - | 5:09 | - | - | 5:09 | - |
| Sunset | - | - | 9:04 | - | - | 9:06 | - | - | 9:07 | - | - | 9:07 | - | - | 9:09 | - | - | 9:10 | - | - | 9:13 | - | - | 9:14 | - | - | 9:15 | - | - | 9:16 | - | - | 9:17 | - | - | 9:19 |
 |  | | | | | | |  |  | |  |  | | | | | | | |  |  | |  | | | | | | |  |  | | | | | |
Rain (in) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0.2 | 0.0 | 0.0 | 0.0 | - | - | - | - | - | - | 0.0 | 0.2 | 0.0 | 0.0 | - | - |
| Temp. °F | 64 | 52 | 57 | 61 | 55 | 63 | 61 | 59 | 63 | 61 | 59 | 61 | 59 | 59 | 63 | 57 | 61 | 63 | 57 | 57 | 57 | 57 | 57 | 59 | 57 | 54 | 55 | 55 | 55 | 55 | 55 | 57 | 59 | 57 | 55 | 57 |
| Feels °F (?) | 59 | 46 | 54 | 59 | 52 | 61 | 57 | 52 | 57 | 59 | 54 | 57 | 55 | 52 | 55 | 52 | 57 | 55 | 50 | 52 | 50 | 52 | 48 | 48 | 48 | 39 | 43 | 45 | 48 | 50 | 46 | 48 | 52 | 52 | 45 | 45 |
Short Range Forecast: Mostly dry. Very mild (max 64°F on Fri night, min 48°F on Fri night). Wind will be generally light. | Days 3-6 Weather Summary Mostly dry. Very mild (max 63°F on Wed afternoon, min 54°F on Wed night). Wind will be generally light. | Days 6-9 Weather Summary Light rain (total 0.3in), mostly falling on Fri afternoon. Very mild (max 59°F on Sat afternoon, min 52°F on Sat night). Winds increasing (calm on Thu night, strong winds from the SW by Sat morning). | Long Range Forecast: Light rain (total 0.4in), mostly falling on Tue morning. Very mild (max 59°F on Tue afternoon, min 52°F on Sun night). Winds increasing (light winds from the WSW on Mon afternoon, fresh winds from the SSW by Tue morning). | |||||||||||||||||||||||||||||||||
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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 Boiler Left 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 Boiler Left Surf forecast
The above surf forecast table for Boiler Left provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Boiler Left can be found by selecting the local surf guide option on the grey menu. Our Boiler Left 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 (Boiler Left) 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 Boiler Left 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.
Boiler Left is 21 km (13 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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