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Porth Dinllaen Surf Forecast
/ Wales – Lleyn (14 surf breaks) /
Porth Dinllaen surfForecast / Wales – Lleyn / UK
12 Day Weather and Surf, issued 6 pm Friday 06 Jun 2025 BST
Best Forecast Surf Conditions for Porth Dinllaen this week:
The most powerful waves expected at Porth Dinllaen in the next 12 days are 1.1m 6s and forecast to arrive on Saturday (Jun 07) 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 0.9m 5s period and expected on Thursday (Jun 12) at 10PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Sat 7th Jun) | 3.5ft (1.1m) 6s |
Table - best surf conditions forecast for Porth Dinllaen over the next 12 days.
Fri 06 | Saturday 07 | Sunday 08 | Monday 09 | Tuesday 10 | Wednesday 11 | Thursday 12 | Friday 13 | Saturday 14 | Sunday 15 | Monday 16 | Tuesday 17 | Wed 18 | ||||||||||||||||||||||||
| 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 | Night | AM | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  |  | |||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 4 | 6 | 4 | 4 | 5 | 4 | 5 | 5 | 6 | 3 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 18 | 18 | 5 | 6 | 7 | 6 | 6 | 6 | 3 | 3 | 4 | 10 | 10 | 18 | 3 | 3 | 16 | 16 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 29 | 80 | 33 | 22 | 14 | 26 | 40 | 17 | 11 | 6 | 69 | 45 | 25 | 0 | 12 | 3 | 1 | 0 | 6 | 6 | 14 | 11 | 7 | 4 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 6 | 1 | 3 | 5 | 5 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- on | cross- on | cross- on | on | cross | cross- on | on | cross | cross- off | cross | cross- on | on | glass | off | glass | off | cross- off | off | cross- off | cross | cross- off | cross- off | glass | cross- off | cross- off | cross- off | glass | cross- on | cross- on | on | cross- on | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 6:39PM 2.86 | 6:50AM 3.04 | 7:19PM 3.02 | 7:33AM 3.12 | 7:57PM 3.17 | 8:12AM 3.20 | 8:32PM 3.30 | 8:49AM 3.26 | 9:07PM 3.40 | 9:25AM 3.30 | 9:41PM 3.47 | 9:59AM 3.30 | 10:16PM 3.51 | 10:34AM 3.27 | 10:52PM 3.52 | 11:11AM 3.21 | 11:30PM 3.51 | 11:51AM 3.13 | 12:11AM 3.48 | 12:35PM 3.03 | 12:57AM 3.42 | 1:26PM 2.93 | 1:48AM 3.35 | |||||||||||||
Low Tide / height (m) | 1:20AM 1.08 | 1:47PM 0.85 | 2:07AM 0.95 | 2:27PM 0.79 | 2:49AM 0.82 | 3:06PM 0.74 | 3:28AM 0.70 | 3:44PM 0.69 | 4:08AM 0.61 | 4:22PM 0.65 | 4:47AM 0.56 | 5:00PM 0.63 | 5:27AM 0.54 | 5:39PM 0.64 | 6:09AM 0.55 | 6:19PM 0.67 | 6:52AM 0.58 | 7:00PM 0.73 | 7:37AM 0.61 | 7:44PM 0.82 | 8:24AM 0.64 | 8:31PM 0.90 | 9:16AM 0.66 | |||||||||||||
Fri 06 | Saturday 07 | Sunday 08 | Monday 09 | Tuesday 10 | Wednesday 11 | Thursday 12 | Friday 13 | Saturday 14 | Sunday 15 | Monday 16 | Tuesday 17 | Wed 18 | ||||||||||||||||||||||||
| Sunrise | - | - | 4:54 | - | - | 4:54 | - | - | 4:54 | - | - | 4:52 | - | - | 4:52 | - | - | 4:52 | - | - | 4:52 | - | - | 4:52 | - | - | 4:52 | - | - | 4:52 | - | - | 4:52 | - | - | 4:52 |
| Sunset | 9:37 | - | - | 9:38 | - | - | 9:39 | - | - | 9:40 | - | - | 9:40 | - | - | 9:42 | - | - | 9:43 | - | - | 9:44 | - | - | 9:44 | - | - | 9:45 | - | - | 9:45 | - | - | 9:45 | - | - |
 |  |  | |  |  | |  | |  |  | | | | | | | | | | | | | | | | | | | | | | |  | | | |
Rain (mm) | 1 | 4 | 2 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 4 | 3 | - | - | - | - | - | - | 2 | 1 | - | - | - | - | - | - | - | - |
| Temp. °C | 13 | 12 | 11 | 12 | 11 | 12 | 14 | 14 | 12 | 12 | 14 | 14 | 14 | 14 | 18 | 19 | 19 | 15 | 16 | 16 | 13 | 14 | 13 | 13 | 13 | 13 | 13 | 14 | 13 | 15 | 16 | 16 | 16 | 18 | 17 | 17 |
| Feels °C (?) | 7 | 7 | 6 | 7 | 6 | 6 | 10 | 10 | 9 | 6 | 10 | 11 | 12 | 13 | 17 | 19 | 18 | 11 | 14 | 14 | 8 | 8 | 9 | 12 | 10 | 10 | 11 | 14 | 11 | 13 | 13 | 14 | 14 | 15 | 14 | 15 |
Short Range Forecast: Light rain (total 8mm), mostly falling on Fri afternoon. Very mild (max 14°C on Sun afternoon, min 10°C on Sat night). Winds decreasing (fresh winds from the SW on Fri afternoon, light winds from the W by Sun night). | Days 3-6 Weather Summary Some drizzle, heaviest during Thu morning. Very mild (max 19°C on Wed afternoon, min 12°C on Mon afternoon). Winds decreasing (fresh winds from the SSW on Mon afternoon, calm by Tue night). | Days 6-9 Weather Summary Light rain (total 9mm), mostly falling on Thu afternoon. Very mild (max 16°C on Thu afternoon, min 11°C on Thu night). Winds decreasing (strong winds from the WSW on Thu night, calm by Sat morning). | Long Range Forecast: Some drizzle, heaviest during Sun afternoon. Warm (max 20°C on Wed afternoon, min 13°C on Sun night). Wind will be generally light. | |||||||||||||||||||||||||||||||||
- Map Icons:
Break
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 Porth Dinllaen 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 Dinllaen Surf forecast
The above surf forecast table for Porth Dinllaen provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Porth Dinllaen can be found by selecting the local surf guide option on the grey menu. Our Porth Dinllaen 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 Dinllaen) 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 Dinllaen 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 Dinllaen, camping, hotels and holiday cottages in Lleyn Peninsula, consider staying in Porthmadog which is 29 km (18 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 35 km (22 miles) away, Holyhead, Bangor and Llandudno.
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