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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 12 am Tuesday 01 Jul 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 1.4m 6s and forecast to arrive on Monday (Jul 07) at 4AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Saturday (Jul 05) at 7PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Mon 7th Jul) | 4.5ft (1.4m) 6s |
Table - best surf conditions forecast for Porth Dinllaen over the next 12 days.
Tuesday 01 | Wednesday 02 | Thursday 03 | Friday 04 | Saturday 05 | Sunday 06 | Monday 07 | Tuesday 08 | Wednesday 09 | Thursday 10 | Friday 11 | Sat 12 | |||||||||||||||||||||||||
| 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 (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 4 | 4 | 5 | 5 | 5 | 11 | 10 | 4 | 5 | 7 | 7 | 7 | 5 | 5 | 4 | 6 | 6 | 6 | 6 | 6 | 5 | 8 | 4 | 4 | 4 | 4 | 5 | 3 | 4 | 4 | 4 | 4 | 5 | 4 | 4 | 4 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 15 | 13 | 18 | 9 | 10 | 6 | 6 | 4 | 4 | 2 | 2 | 1 | 55 | 56 | 0 | 69 | 117 | 90 | 121 | 112 | 43 | 2 | 7 | 2 | 3 | 4 | 4 | 6 | 2 | 2 | 12 | 10 | 0 | 2 | 1 | 1 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- on | cross- on | cross- on | cross- on | on | glass | on | cross | cross- off | cross- off | cross- off | cross- off | cross | cross- off | cross- on | cross- on | on | on | on | cross- off | on | cross- on | on | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 1:13AM 3.49 | 1:45PM 2.87 | 2:04AM 3.26 | 2:41PM 2.72 | 3:00AM 3.04 | 3:43PM 2.64 | 4:03AM 2.87 | 4:49PM 2.64 | 5:09AM 2.78 | 5:49PM 2.70 | 6:10AM 2.79 | 6:43PM 2.81 | 7:03AM 2.85 | 7:29PM 2.96 | 7:49AM 2.96 | 8:11PM 3.12 | 8:30AM 3.07 | 8:49PM 3.29 | 9:08AM 3.18 | 9:26PM 3.45 | 9:44AM 3.26 | 10:02PM 3.60 | 10:20AM 3.32 | |||||||||||||
Low Tide / height (m) | 8:27AM 0.57 | 8:29PM 0.91 | 9:12AM 0.77 | 9:15PM 1.08 | 9:59AM 0.96 | 10:07PM 1.23 | 10:52AM 1.10 | 11:10PM 1.31 | 11:53AM 1.18 | 12:23AM 1.30 | 12:58PM 1.17 | 1:30AM 1.19 | 1:55PM 1.08 | 2:25AM 1.03 | 2:43PM 0.94 | 3:11AM 0.84 | 3:26PM 0.79 | 3:53AM 0.66 | 4:05PM 0.64 | 4:33AM 0.50 | 4:44PM 0.51 | 5:13AM 0.37 | 5:22PM 0.43 | |||||||||||||
Tuesday 01 | Wednesday 02 | Thursday 03 | Friday 04 | Saturday 05 | Sunday 06 | Monday 07 | Tuesday 08 | Wednesday 09 | Thursday 10 | Friday 11 | Sat 12 | |||||||||||||||||||||||||
| Sunrise | - | 4:56 | - | - | 4:56 | - | - | 4:58 | - | - | 4:58 | - | - | 4:58 | - | - | 5:00 | - | - | 5:01 | - | - | 5:01 | - | - | 5:03 | - | - | 5:03 | - | - | 5:05 | - | - | 5:05 | - |
| Sunset | - | - | 9:45 | - | - | 9:45 | - | - | 9:45 | - | - | 9:45 | - | - | 9:45 | - | - | 9:44 | - | - | 9:43 | - | - | 9:43 | - | - | 9:42 | - | - | 9:40 | - | - | 9:39 | - | - | 9:38 |
 |  |  |  |  | | |  | | |  | |  | | |  | | | | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | 3 | 2 | - | - | - | - | - | - | - | - | - | 3 | 1 | - | 1 | 3 | - | - | - | 2 | 7 | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 17 | 14 | 13 | 14 | 13 | 14 | 15 | 13 | 15 | 15 | 14 | 14 | 15 | 15 | 16 | 15 | 14 | 15 | 14 | 12 | 14 | 13 | 14 | 15 | 15 | 15 | 16 | 16 | 16 | 17 | 16 | 17 | 17 | 16 | 18 | 18 |
| Feels °C (?) | 17 | 11 | 10 | 10 | 9 | 12 | 13 | 12 | 12 | 12 | 10 | 9 | 12 | 12 | 13 | 11 | 9 | 9 | 9 | 7 | 8 | 8 | 9 | 13 | 11 | 11 | 12 | 13 | 13 | 15 | 14 | 14 | 14 | 15 | 16 | 15 |
Short Range Forecast: Light rain (total 5mm), mostly falling on Tue morning. Very mild (max 17°C on Mon night, min 12°C on Tue afternoon). Wind will be generally light. | Days 3-6 Weather Summary Light rain (total 8mm), mostly falling on Sun morning. Very mild (max 16°C on Sat afternoon, min 12°C on Sat night). Winds increasing (light winds from the SSW on Thu night, fresh winds from the W by Sat night). | Days 6-9 Weather Summary Light rain (total 9mm), mostly falling on Mon night. Very mild (max 16°C on Wed afternoon, min 12°C on Sun night). Winds decreasing (fresh winds from the N on Mon night, light winds from the W by Tue afternoon). | Long Range Forecast: Mostly dry. Very mild (max 18°C on Sat morning, min 14°C on Thu 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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