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Porth Ceriad Surf Forecast
/ Wales – Lleyn (14 surf breaks) /
Surf Forecasts:
Porth Ceriad surfForecast / Wales – Lleyn / UK
16 Day Weather and Surf, issued 12 am Saturday 16 May 2026 BSTForecast update in hr min s Forecast update imminent
Porth Ceriad surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Porth Ceriad sea temperature is
11.9° C
(Which is 1.2°C warmer than normal for this time of year)Best Forecast Surf Conditions for Porth Ceriad this week:
The most powerful waves expected at Porth Ceriad in the next 16 days are 2.3m 7s and forecast to arrive on Wednesday (May 20) 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 1.0m 4s period and expected on Sunday (May 17) at 4AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Wed 20th May) | 7.5ft (2.3m) 7s |
Table - best surf conditions forecast for Porth Ceriad over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 10mm), heaviest on Sun night. Very mild (max 11°C on Sat afternoon, min 9°C on Sat night). Winds increasing (light winds from the WNW on Fri night, fresh winds from the WSW by Sun afternoon). | Days 4-6 Weather SummaryModerate rain (total 16mm), heaviest on Mon night. Very mild (max 16°C on Thu afternoon, min 10°C on Mon night). Winds decreasing (strong winds from the SW on Tue afternoon, light winds from the S by Thu afternoon). | ||||||||||||||||||||
Saturday 16 | Sunday 17 | Monday 18 | Tuesday 19 | Wednesday 20 | Thursday 21 | Friday 22 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
W 13 | SW 3 | W 4 | W 5 | SW 5 | WSW 6 | SW 6 | WSW 6 | SW 4 | SW 7 | SW 7 | SW 7 | SW 8 | SW 7 | SW 7 | SW 6 | SSW 6 | SW 6 | SW 10 | SW 10 | SW 10 | |
3 | 5 | 28 | 56 | 70 | 116 | 56 | 25 | 9 | 275 | 493 | 537 | 371 | 230 | 121 | 47 | 43 | 40 | 196 | 163 | 139 | |
Wind (km/h) | |||||||||||||||||||||
cross-on | cross-on | cross-off | cross | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | cross-on | on | on | cross-on | |
High Tide | 8:19AM4.56m | 8:43PM4.55m | 9:04AM4.68m | 9:27PM4.69m | 9:50AM4.65m | 10:11PM4.70m | 10:37AM4.48m | 10:58PM4.58m | 11:26AM4.19m | 11:47PM4.37m | 12:18PM3.82m | 00:41AM4.09m | 1:15PM3.46m | 1:42AM3.81m | |||||||
Low Tide | 3:27PM0.22m | 3:49AM0.25m | 4:14PM0.22m | 4:39AM0.16m | 5:02PM0.31m | 5:30AM0.18m | 5:51PM0.47m | 6:24AM0.28m | 6:43PM0.67m | 7:21AM0.44m | 7:38PM0.87m | 8:21AM0.62m | 8:36PM1.06m | ||||||||
 |  |  | | | |  |  |  | | | | | |  | | | | | |  | |
 | 5:20 | — | — | 5:18 | — | — | 5:16 | — | — | 5:15 | — | — | 5:13 | — | — | 5:11 | — | — | 5:11 | — | — |
 | — | — | 9:08 | — | — | 9:10 | — | — | 9:12 | — | — | 9:14 | — | — | 9:15 | — | — | 9:16 | — | — | 9:17 |
1 | 2 | 1 | 1 | 1 | 4 | — | — | 12 | 1 | — | 1 | — | — | — | 1 | 1 | — | — | — | 9 | |
Temp °C | 10 | 11 | 11 | 10 | 10 | 10 | 10 | 11 | 12 | 12 | 12 | 12 | 13 | 14 | 13 | 13 | 16 | 16 | 16 | 19 | 20 |
6 | 6 | 6 | 3 | 2 | 4 | 7 | 8 | 5 | 5 | 4 | 5 | 7 | 8 | 9 | 9 | 14 | 14 | 14 | 18 | 17 | |
Swell 1 Height (m) Direction Period (s) | NNW 5 | — | W 13 | — | NW 4 | — | SW 6 | WSW 6 | SW 4 | — | — | — | — | — | SW 7 | SW 6 | SW 8 | SW 6 | SW 10 | SW 10 | SW 10 |
 kJ | 2 | — | 3 | — | 3 | — | 56 | 25 | 9 | — | — | — | — | — | 121 | 47 | 15 | 40 | 196 | 163 | 139 |
Swell 2 Height (m) Direction Period (s) | W 13 | W 13 | — | — | — | — | NW 4 | WNW 3 | SW 6 | — | — | — | — | — | — | WSW 8 | W 15 | WSW 10 | — | — | — |
| kJ | 3 | 3 | — | — | — | — | 4 | 1 | 6 | — | — | — | — | — | — | 7 | 4 | 19 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 4 | SW 3 | W 4 | W 5 | SW 5 | WSW 6 | — | — | SE 3 | SW 7 | SW 7 | SW 7 | SW 8 | SW 7 | — | SSE 3 | SSW 6 | SE 3 | — | — | — |
| kJ | 2 | 5 | 28 | 56 | 70 | 116 | — | — | 7 | 275 | 493 | 537 | 371 | 230 | — | 4 | 43 | 2 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 303 | 307 | 303 | 303 | 303 | 298 | 3 | 247 | 236 | 303 | 303 | 307 | 103 | 267 | 27 | 151 | 132 | 33 | 60 | 31 | 287 |
Best forecast wave conditions in Lleyn Peninsula | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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 Ceriad 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 Ceriad Surf forecast
The above surf forecast table for Porth Ceriad provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Porth Ceriad can be found by selecting the local surf guide option on the grey menu. Our Porth Ceriad 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 Ceriad) 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 Ceriad 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.
Porth Ceriad is 29 km (18 miles) from Porthmadog. If you plan a holiday in Lleyn Peninsula, look for hotels and other accommodation in Porthmadog. Porthmadog has rooms for a wide range of budgets as well as car hire and transport links.
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