Using Surf-Forecast’s Historical Surf Data To Find The Most Consistent Waves On Earth
Using our statistical data for 7000 spots dating back to 2006, we can find those waves that break the most, with the best winds.
Surf Forecasts:
The Boiler surfForecast / Wales – Gower / UK
48hr Weather and Surf, issued 11 am Thursday 18 Dec 2025 GMTForecast update in hr min s Forecast update imminent
The Boiler surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's The Boiler sea temperature is
9.9° C
(Which is 1.0°C colder than average for this time of year)How big are the waves at The Boiler today?
The current surf forecast for The Boiler at 2PM is: 2.3m 19s primary swell from a West-southwest direction and 2.0m 19s secondary swell from a West-southwest direction (forecast issued at 11:00am December 18). The wind direction is predicted to be cross-onshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Dec) | 8ft (2.5m) | 20s |
| Afternoon (18 Dec) | 7.5ft (2.3m) | 19s |
| Evening (18 Dec) | 8ft (2.5m) | 18s |
Table - waves today at The Boiler. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | |||||||||||||||||||||
| 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 20 | 19 | 19 | 18 | 18 | 17 | 17 | 17 | 9 | 16 | 16 | 15 | 15 | 14 | 14 | 9 | 9 | 11 | 11 | 12 | 12 | 12 | 17 | 16 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 4642 | 4169 | 3920 | 4268 | 4106 | 3520 | 3811 | 4479 | 1467 | 4493 | 3456 | 2837 | 2212 | 1983 | 1676 | 580 | 704 | 1148 | 1664 | 1375 | 1119 | 1059 | 1269 | 2503 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | cross- on | cross- on | cross- on | cross | cross | cross- on | cross | cross | cross- on | cross- on | cross- on | on | on | on | on | cross- on | on | cross- on | cross- on | cross | cross | cross | cross- off |
High Tide / height (m) | 5:20PM 8.43 | 5:42AM 8.70 | 5:58PM 8.58 | 6:18AM 8.86 | 6:35PM 8.67 | |||||||||||||||||||
Low Tide / height (m) | 11:03AM 2.33 | 11:25PM 2.26 | 11:42AM 2.16 | 12:01AM 2.14 | 12:19PM 2.05 | 12:35AM 2.06 | ||||||||||||||||||
Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | |||||||||||||||||||||
| Sunrise | 8:17 | - | - | - | - | - | - | - | 8:18 | - | - | - | - | - | - | - | 8:18 | - | - | - | - | - | - | - |
| Sunset | - | - | 4:07 | - | - | - | - | - | - | - | 4:07 | - | - | - | - | - | - | - | 4:07 | - | - | - | - | - |
 |  |  |  |  |  |  |  |  | | | | | | | | | | | |  | | | | |
Rain (mm) | - | 7 | 3 | - | 1 | - | - | 1 | 1 | 1 | 1 | - | - | - | - | - | - | - | - | 2 | 8 | 3 | - | - |
| Temp. °C | 10 | 10 | 10 | 11 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 9 | 8 | 9 | 9 | 9 | 10 | 9 | 9 | 7 | 7 | 8 | 8 |
| Feels °C (?) | 8 | 7 | 4 | 3 | 3 | 2 | 1 | 1 | 1 | 3 | 3 | 4 | 3 | 2 | 2 | 1 | 1 | 2 | 1 | 2 | 3 | 4 | 5 | 5 |
- 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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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.
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