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Porth Nefyn Surf Forecast
/ Wales – Lleyn (14 surf breaks) /
Porth Nefyn surfForecast / Wales – Lleyn / UK
12 Day Weather and Surf, issued 5 pm Saturday 01 Feb 2025 GMT
Best Forecast Surf Conditions for Porth Nefyn this week:
The surf forecast for Porth Nefyn over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Feb 02) at 12PM. The primary swell is predicted to be 1.7m and 8s period with a secondary swell of 0.3m and 15s. Another secondary swell of 0.3m and 14s is also forecast. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Porth Nefyn in the next 12 days are 2.5m 8s and forecast to arrive on Tuesday (Feb 04) at 6AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 6s period and expected on Tuesday (Feb 04) at 9PM.
| Wave Type | Time (GMT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Sun 2nd Feb) | 5.5ft (1.7m) 8s |
| Best Surf | 12PM (Sun 2nd Feb) | 5.5ft (1.7m) 8s |
| Most Powerful | 6AM (Tue 4th Feb) | 8ft (2.5m) 8s |
Table - best surf conditions forecast for Porth Nefyn over the next 12 days.
Sat 01 | Sunday 02 | Monday 03 | Tuesday 04 | Wednesday 05 | Thursday 06 | Friday 07 | Saturday 08 | Sunday 09 | Monday 10 | Tuesday 11 | Wednesday 12 | Thu 13 | ||||||||||||||||||||||||
| 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) (?) | 12 | 7 | 8 | 8 | 15 | 16 | 16 | 7 | 9 | 9 | 6 | 8 | 8 | 8 | 7 | 7 | 6 | 17 | 17 | 16 | 15 | 14 | 7 | 6 | 7 | 7 | 7 | 7 | 15 | 14 | 14 | 13 | 13 | 13 | 3 | 3 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 3 | 286 | 444 | 292 | 93 | 94 | 100 | 507 | 790 | 378 | 206 | 114 | 73 | 28 | 19 | 12 | 7 | 5 | 5 | 6 | 5 | 8 | 51 | 29 | 14 | 8 | 5 | 2 | 5 | 4 | 4 | 3 | 3 | 3 | 6 | 9 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | off | cross- off | cross- off | cross- off | cross- off | off | cross- off | cross | cross | cross- on | cross- on | off | cross- off | off | cross- off | off | off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | cross- on | cross- on | cross | cross- on | cross | cross | cross | cross- on | cross |
High Tide / height (m) | 10:40PM 3.65 | 10:57AM 4.15 | 11:22PM 3.56 | 11:41AM 3.98 | 12:08AM 3.40 | 12:29PM 3.70 | 12:59AM 3.19 | 1:25PM 3.36 | 1:59AM 2.97 | 2:34PM 3.03 | 3:15AM 2.83 | 4:00PM 2.83 | 4:41AM 2.84 | 5:26PM 2.84 | 5:56AM 3.02 | 6:34PM 2.98 | 6:55AM 3.27 | 7:26PM 3.15 | 7:43AM 3.52 | 8:08PM 3.30 | 8:24AM 3.74 | 8:47PM 3.42 | 9:01AM 3.89 | |||||||||||||
Low Tide / height (m) | 5:30PM -0.15 | 5:38AM 0.16 | 6:12PM -0.03 | 6:20AM 0.31 | 6:56PM 0.20 | 7:06AM 0.53 | 7:45PM 0.50 | 8:00AM 0.78 | 8:43PM 0.82 | 9:10AM 1.01 | 9:59PM 1.07 | 10:41AM 1.10 | 11:28PM 1.12 | 12:11PM 0.97 | 12:44AM 0.98 | 1:19PM 0.71 | 1:42AM 0.75 | 2:12PM 0.44 | 2:28AM 0.53 | 2:56PM 0.22 | 3:07AM 0.36 | 3:35PM 0.09 | 3:43AM 0.26 | |||||||||||||
Sat 01 | Sunday 02 | Monday 03 | Tuesday 04 | Wednesday 05 | Thursday 06 | Friday 07 | Saturday 08 | Sunday 09 | Monday 10 | Tuesday 11 | Wednesday 12 | Thu 13 | ||||||||||||||||||||||||
| Sunrise | - | - | 8:00 | - | - | 7:58 | - | - | 7:56 | - | - | 7:54 | - | - | 7:52 | - | - | 7:50 | - | - | 7:48 | - | - | 7:48 | - | - | 7:46 | - | - | 7:43 | - | - | 7:41 | - | - | 7:39 |
| Sunset | 5:00 | - | - | 5:02 | - | - | 5:05 | - | - | 5:07 | - | - | 5:08 | - | - | 5:10 | - | - | 5:13 | - | - | 5:15 | - | - | 5:16 | - | - | 5:19 | - | - | 5:21 | - | - | 5:22 | - | - |
 |  | |  |  |  |  |  | | |  | | |  | | | | | | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | 2 | - | - | - | 3 | 4 | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 6 | 6 | 7 | 7 | 7 | 8 | 8 | 9 | 10 | 8 | 7 | 7 | 7 | 7 | 6 | 6 | 5 | 4 | 5 | 5 | 5 | 6 | 5 | 3 | 5 | 4 | 4 | 4 | 4 | 4 | 5 | 4 | 3 | 4 | 3 | 4 |
| Feels °C (?) | -2 | -4 | 0 | 4 | 5 | -1 | -1 | 0 | 3 | -1 | -2 | 1 | 3 | 4 | 2 | 2 | 1 | 1 | 2 | 1 | -1 | 0 | -1 | -2 | 0 | -1 | -3 | -3 | -3 | -3 | -2 | -2 | -4 | -4 | -4 | 0 |
Short Range Forecast: Light rain (total 9mm), mostly falling on Tue morning. Very mild (max 10°C on Tue morning, min 6°C on Sat afternoon). Winds increasing (light winds from the WNW on Sun night, near gales from the S by Mon night). | Days 3-6 Weather Summary Some drizzle, heaviest during Tue night. Mild temperatures (max 8°C on Tue afternoon, min 3°C on Fri morning). Winds decreasing (strong winds from the WSW on Tue afternoon, calm by Wed afternoon). | Days 6-9 Weather Summary Mostly dry. Mild temperatures (max 6°C on Sat afternoon, min 2°C on Sun morning). Wind will be generally light. | Long Range Forecast: Mostly dry. Mild temperatures (max 5°C on Tue afternoon, min 2°C on Tue night). Wind will be generally light. | |||||||||||||||||||||||||||||||||
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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 Nefyn 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 Nefyn Surf forecast
The above surf forecast table for Porth Nefyn provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Porth Nefyn can be found by selecting the local surf guide option on the grey menu. Our Porth Nefyn 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 Nefyn) 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 Nefyn 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 Nefyn, camping, hotels and holiday cottages in Lleyn Peninsula, consider staying in Porthmadog which is 27 km (17 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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