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Surf Forecasts:
Porth Towyn surfForecast / Wales – Lleyn / UK
12 Day Weather and Surf, issued 11 pm Friday 06 Mar 2026 GMTForecast update in hr min s Forecast update imminent
Porth Towyn surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Porth Towyn sea temperature is
8.5° C
(Which is slightly warmer than usual)Best Forecast Surf Conditions for Porth Towyn this week:
The surf forecast for Porth Towyn over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Mar 09) at 12AM. The primary swell is predicted to be 0.6m and 12s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Porth Towyn in the next 12 days are 4.0m 9s and forecast to arrive on Thursday (Mar 12) at 9PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Wednesday (Mar 11) at 12AM.
| Wave Type | Time (GMT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Mon 9th Mar) | 2ft (0.6m) 12s |
| Best Surf | 3AM (Fri 13th Mar) | 8ft (2.5m) 10s |
| Most Powerful | 9PM (Thu 12th Mar) | 13ft (4.0m) 9s |
Table - best surf conditions forecast for Porth Towyn over the next 12 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Light rain (total 2mm), mostly falling on Sun afternoon. Very mild (max 10°C on Sun afternoon, min 5°C on Fri night). Wind will be generally light. | Days 3-6 Weather Summary Moderate rain (total 14mm), heaviest on Tue night. Mild temperatures (max 9°C on Mon night, min 8°C on Mon night). Winds increasing (light winds from the S on Mon night, gales from the SSW by Thu afternoon). | |||||||||||||||||||||
Saturday 07 | Sunday 08 | Monday 09 | Tuesday 10 | Wednesday 11 | Thursday 12 | Fri 13 | ||||||||||||||||
| 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) (?) | 8 | 16 | 16 | 14 | 13 | 12 | 12 | 9 | 8 | 7 | 8 | 9 | 16 | 8 | 8 | 8 | 6 | 8 | 10 | 10 | 9 | |
Wave (?)Graph  | ||||||||||||||||||||||
 kJ (?) | 6 | 11 | 24 | 38 | 33 | 37 | 106 | 62 | 60 | 33 | 21 | 27 | 10 | 418 | 191 | 132 | 292 | 1161 | 1908 | 817 | 632 | |
Wind (km/h) | ||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | cross- off | cross- off | cross- off | off | cross- off | cross- off | cross | cross- off | cross- off | cross- off | cross- off | cross- on | cross- on | cross | cross- off | cross- off | cross- off | cross | cross- off | |
High Tide / height (m) | 10:29PM 3.63 | 10:45AM 3.80 | 11:02PM 3.48 | 11:20AM 3.52 | 11:35PM 3.28 | 11:54AM 3.20 | 12:09AM 3.02 | 12:32PM 2.87 | 12:50AM 2.75 | 1:21PM 2.55 | 1:54AM 2.49 | 2:58PM 2.32 | 4:06AM 2.41 | 5:12PM 2.37 | ||||||||
Low Tide / height (m) | 5:18AM 0.30 | 5:41PM 0.40 | 5:49AM 0.52 | 6:09PM 0.70 | 6:20AM 0.78 | 6:39PM 1.00 | 6:56AM 1.06 | 7:16PM 1.28 | 7:44AM 1.33 | 8:12PM 1.51 | 9:05AM 1.53 | 9:51PM 1.62 | 11:06AM 1.51 | |||||||||
Saturday 07 | Sunday 08 | Monday 09 | Tuesday 10 | Wednesday 11 | Thursday 12 | Fri 13 | ||||||||||||||||
| Sunrise | - | 6:52 | - | - | 6:50 | - | - | 6:48 | - | - | 6:46 | - | - | 6:43 | - | - | 6:41 | - | - | 6:39 | - | |
| Sunset | - | - | 6:07 | - | - | 6:07 | - | - | 6:09 | - | - | 6:12 | - | - | 6:14 | - | - | 6:15 | - | - | 6:17 | |
 |  | |  |  |  |  |  |  | | | |  | | | | |  |  | |  | ||
Rain (mm) | - | - | - | - | - | 1 | - | 1 | - | - | - | - | 8 | - | - | - | - | 6 | 16 | - | 2 | |
| Temp. °C | 6 | 5 | 7 | 8 | 9 | 10 | 10 | 10 | 9 | 9 | 8 | 9 | 9 | 8 | 9 | 9 | 9 | 9 | 7 | 8 | 8 | |
| Feels °C (?) | 3 | 0 | 3 | 5 | 6 | 6 | 6 | 8 | 7 | 5 | 2 | 0 | -3 | -1 | 2 | -1 | -3 | -6 | -1 | 0 | 0 | |
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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 Porth Towyn 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 Porth Towyn Surf forecast
The above surf forecast table for Porth Towyn provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Porth Towyn can be found by selecting the local surf guide option on the grey menu. Our Porth Towyn 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 (Porth Towyn) 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 Porth Towyn 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.
Are you planning a holiday in Lleyn Peninsula? If you are looking for accommodation near Porth Towyn, camping, hotels and holiday cottages in Lleyn Peninsula, consider staying in Porthmadog which is 34 km (21 miles) away. Other places in and around Lleyn Peninsula where you can find information about places to rent, and car hire include Anglesey which is 39 km (24 miles) away, Holyhead, Bangor and Aberystwyth.
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