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Trecco Bay Surf Forecast
/ Wales – South East (14 surf breaks) /
Surf Forecasts:
Trecco Bay surfForecast / Wales – South East / UK
12 Day Weather and Surf, issued 11 pm Monday 17 Nov 2025 GMT
Best Forecast Surf Conditions for Trecco Bay this week:
The surf forecast for Trecco Bay over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Nov 22) at 9AM. The primary swell is predicted to be 1.0m and 7s period with a secondary swell of 0.4m and 13s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Trecco Bay in the next 12 days are 0.9m 14s and forecast to arrive on Friday (Nov 21) at 6PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Wednesday (Nov 19) at 12PM.
| Wave Type | Time (GMT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Sat 22nd Nov) | 3.5ft (1.0m) 7s |
| Best Surf | 9AM (Sat 22nd Nov) | 3.5ft (1.0m) 7s |
| Most Powerful | 6PM (Fri 21st Nov) | 3ft (0.9m) 14s |
Table - best surf conditions forecast for Trecco Bay over the next 12 days.
Short Range Forecast Light rain (total 4mm), mostly falling on Mon night. Very mild (max 10°C on Tue afternoon, min 3°C on Wed night). Winds increasing (calm on Mon night, fresh winds from the NNW by Tue night). | Days 3-6 Weather Summary Light rain (total 5mm), mostly falling on Fri night. Very mild (max 10°C on Sun afternoon, min 5°C on Thu night). Winds increasing (calm on Fri morning, fresh winds from the NW by Fri night). | |||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Mon 24 | ||||||||||||||||
| 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 (m) & direction (?) | ||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 4 | 6 | 6 | 12 | 12 | 5 | 5 | 11 | 17 | 10 | 6 | 7 | 7 | 8 | 7 | 7 | 9 | 9 | 9 | |
Wave (?)Graph  | ||||||||||||||||||||||
 kJ (?) | 14 | 14 | 22 | 80 | 27 | 14 | 13 | 17 | 15 | 25 | 28 | 20 | 135 | 102 | 91 | 72 | 75 | 52 | 84 | 94 | 64 | |
Wind (km/h) | ||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | glass | cross- on | on | cross- off | cross- off | cross- off | cross- off | glass | cross- on | cross | cross | |
High Tide / height (m) | 4:55AM 7.69 | 5:12PM 7.84 | 5:30AM 7.97 | 5:46PM 8.04 | 6:03AM 8.17 | 6:20PM 8.14 | 6:36AM 8.26 | 6:53PM 8.13 | 7:09AM 8.23 | 7:27PM 8.01 | 7:43AM 8.09 | 8:02PM 7.79 | 8:19AM 7.86 | |||||||||
Low Tide / height (m) | 10:43PM 1.55 | 11:00AM 1.49 | 11:16PM 1.32 | 11:33AM 1.25 | 11:48PM 1.17 | 12:05PM 1.11 | 12:20AM 1.11 | 12:38PM 1.07 | 12:52AM 1.15 | 1:11PM 1.15 | 1:24AM 1.28 | 1:44PM 1.33 | 1:57AM 1.49 | 2:19PM 1.59 | ||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Mon 24 | ||||||||||||||||
| Sunrise | - | 7:35 | - | - | 7:37 | - | - | 7:39 | - | - | 7:41 | - | - | 7:43 | - | - | 7:45 | - | - | 7:46 | - | |
| Sunset | - | - | 4:22 | - | - | 4:21 | - | - | 4:19 | - | - | 4:17 | - | - | 4:16 | - | - | 4:15 | - | - | 4:15 | |
 |  |  | |  | |  | | |  |  | | | | | | | | |  |  | ||
Rain (mm) | 1 | - | 1 | 2 | - | - | - | - | - | - | - | - | 5 | - | - | - | - | - | 17 | 6 | 1 | |
| Temp. °C | 7 | 8 | 10 | 8 | 5 | 6 | 4 | 6 | 7 | 5 | 7 | 8 | 9 | 9 | 9 | 8 | 9 | 10 | 11 | 8 | 9 | |
| Feels °C (?) | 5 | 3 | 3 | 2 | -3 | -2 | -2 | -1 | 1 | -2 | 2 | 1 | 3 | 4 | 4 | 5 | 6 | 8 | 0 | -5 | -4 | |
- Map Icons:
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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 Trecco Bay 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 Trecco Bay Surf forecast
The above surf forecast table for Trecco Bay provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Trecco Bay can be found by selecting the local surf guide option on the grey menu. Our Trecco Bay 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 (Trecco Bay) 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 Trecco Bay 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.
Trecco Bay is 2 km (1 miles) from Porthcawl. If you plan a holiday in Wales - South East, look for hotels and other accommodation in Porthcawl. Porthcawl has rooms for a wide range of budgets as well as car hire and transport links.
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