Surf Forecasts:
Porth Ceriad surf forecast from 27 Oct 2026:
- Best quality surf: Saturday 31 Oct, 6AM (local time) - 2.5ft (0.7m), 10s period, SW swell with glassy winds.
- Most powerful swell: Tuesday 27 Oct, 3AM (local time) - 11ft (3.5m), 11s period, SW swell with 3,010 kJ wave energy.
- Next surfable swell (1★+): Saturday 31 Oct, 6AM (local time) - 2.5ft (0.7m), 10s period with SW swell.
Best Forecast Surf Conditions for Porth Ceriad this week:
The surf forecast for Porth Ceriad over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Oct 31) at 6AM. The primary swell is predicted to be 0.7m and 10s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Porth Ceriad in the next 16 days are 3.5m 11s and forecast to arrive on Tuesday (Oct 27) at 3AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Sunday (Nov 01) at 12PM.
| Wave Type | Time (GMT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Sat 31st Oct) | 2.5ft (0.7m) 10s |
| Best Surf | 6AM (Sat 31st Oct) | 2.5ft (0.7m) 10s |
| Most Powerful | 3AM (Tue 27th Oct) | 11ft (3.5m) 11s |
Table - best surf conditions forecast for Porth Ceriad over the next 16 days.
Short Range ForecastModerate rain (total 10mm), heaviest on Mon night. Very mild (max 16°C on Mon night, min 11°C on Tue morning). Winds decreasing (gales from the SSW on Mon night, moderate winds from the WSW by Wed morning). | Days 5-7 Weather SummaryModerate rain (total 17mm), heaviest on Fri night. Very mild (max 14°C on Fri night, min 9°C on Sun morning). Winds decreasing (strong winds from the SSE on Thu night, calm by Fri night). | |||||||||||||||||||
Mon 26 | Tuesday 27 | Wednesday 28 | Thursday 29 | Friday 30 | Saturday 31 | Sunday 1 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SW 9 | SW 10 | WSW 10 | WSW 12 | WSW 12 | WSW 8 | WSW 8 | SW 7 | SW 6 | SW 7 | SSW 7 | SW 9 | SW 10 | SW 10 | SW 10 | SW 9 | SW 9 | SW 8 | SW 8 | WSW 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 1187 | 2967 | 2239 | 2064 | 1553 | 557 | 314 | 128 | 113 | 189 | 344 | 460 | 240 | 157 | 79 | 41 | 38 | 18 | 17 | 6 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | cross | cross-on | cross-on | cross-on | on | on | on | on | on | on | on | off | cross-off | off | off | off | cross-off |
High Tide | 8:03PM4.69m | 8:24AM4.64m | 8:43PM4.73m | 9:04AM4.67m | 9:26PM4.62m | 9:46AM4.58m | 10:11PM4.36m | 10:32AM4.36m | 10:59PM4.00m | 11:22AM4.06m | 11:54PM3.58m | 12:21PM3.74m | 1:02AM3.21m | |||||||
Low Tide | 3:06AM0.17m | 3:23PM0.22m | 3:46AM0.26m | 4:07PM0.27m | 4:29AM0.45m | 4:56PM0.40m | 5:17AM0.70m | 5:52PM0.60m | 6:14AM0.96m | 6:57PM0.81m | 7:20AM1.18m | 8:10PM0.94m | ||||||||
 |  |  |  |  | | |  | | |  |  | |  | |  |  | | | | |
 | — | — | 7:03 | — | — | 7:05 | — | — | 7:07 | — | — | 7:09 | — | — | 7:11 | — | — | 7:13 | — | — |
 | 5:00 | — | — | 4:58 | — | — | 4:55 | — | — | 4:53 | — | — | 4:52 | — | — | 4:50 | — | — | 4:47 | — |
mm | — | 7 | — | 1 | — | 1 | — | 1 | — | — | — | 1 | 3 | 12 | 1 | — | — | — | — | — |
Temp °C | 15 | 16 | 12 | 12 | 13 | 14 | 13 | 13 | 13 | 13 | 12 | 13 | 13 | 14 | 12 | 11 | 11 | 10 | 10 | 9 |
Feels °C | 6 | 4 | 1 | 2 | 4 | 7 | 8 | 8 | 7 | 6 | 4 | 7 | 8 | 11 | 8 | 6 | 6 | 5 | 5 | 6 |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | — | — | WSW 10 | SW 6 | SW 7 | SW 8 | SW 9 | SW 10 | SW 10 | SW 10 | SW 9 | SW 9 | SW 8 | SW 8 | NNW 4 |
| kJ | — | — | — | — | — | — | — | 42 | 113 | 69 | 116 | 246 | 240 | 157 | 79 | 41 | 38 | 18 | 17 | 3 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | WSW 10 | WSW 10 | — | — | — | — | — | — | WSW 12 | — | WSW 9 | WSW 8 | WSW 8 |
| kJ | — | — | — | — | — | — | — | 20 | 10 | — | — | — | — | — | — | 13 | — | 7 | 7 | 6 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 16 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 9 | SW 10 | WSW 10 | WSW 12 | WSW 12 | WSW 8 | WSW 8 | SW 7 | SSE 4 | SW 7 | SSW 7 | SW 9 | — | — | — | NNW 3 | NNW 3 | NNW 4 | N 4 | — |
| kJ | 1187 | 2967 | 2239 | 2064 | 1553 | 557 | 314 | 128 | 14 | 189 | 344 | 460 | — | — | — | 1 | 4 | 8 | 12 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 641 | 641 | 788 | 1022 | 272 | 267 | 252 | 36 | 159 | 180 | 180 | 46 | 27 | 27 | 0 | 135 | 138 | 125 | 125 | 113 |
Best forecast wave conditions in Lleyn Peninsula | ||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||
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Recent Eyeball Surf Reports for Wales - Lleyn
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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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