Surf Forecasts:
Porth Ceriad surf forecast from 10 Nov 2026:
- Best quality surf: Monday 16 Nov, 6PM (local time) - 11ft (3.5m), 9s period, WSW swell with onshore winds.
- Most powerful swell: Monday 16 Nov, 9AM (local time) - 13ft (4.0m), 11s period, SW swell with 3,450 kJ wave energy.
- Next surfable swell (1★+): Wednesday 11 Nov, 3PM (local time) - 3ft (0.9m), 12s period with WSW 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 Wednesday (Nov 11) at 3PM. The primary swell is predicted to be 0.9m and 12s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Porth Ceriad in the next 16 days are 4.0m 11s and forecast to arrive on Monday (Nov 16) at 9AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Saturday (Nov 21) at 6PM.
| Wave Type | Time (GMT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Wed 11th Nov) | 3ft (0.9m) 12s |
| Best Surf | 6PM (Mon 16th Nov) | 11ft (3.5m) 9s |
| Most Powerful | 9AM (Mon 16th Nov) | 13ft (4.0m) 11s |
Table - best surf conditions forecast for Porth Ceriad over the next 16 days.
Short Range ForecastMostly dry. Very mild (max 10°C on Tue afternoon, min 7°C on Thu afternoon). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 13°C on Sun afternoon, min 6°C on Fri night). Winds increasing (calm on Fri afternoon, strong winds from the SSE by Sun morning). | ||||||||||||||||||
Tuesday 10 | Wednesday 11 | Thursday 12 | Friday 13 | Saturday 14 | Sunday 15 | ||||||||||||||
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 12 | SW 11 | SW 12 | SW 13 | SW 12 | WSW 12 | SW 11 | SW 10 | SW 10 | SW 10 | SW 9 | SW 9 | SW 8 | SW 11 | SW 10 | S 5 | SSW 7 | SSW 8 | SW 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 106 | 133 | 195 | 342 | 297 | 255 | 123 | 68 | 64 | 35 | 21 | 13 | 13 | 18 | 28 | 106 | 310 | 449 | 811 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on |
High Tide | 8:19AM4.30m | 8:38PM4.18m | 8:54AM4.25m | 9:14PM4.03m | 9:29AM4.13m | 9:49PM3.83m | 10:04AM3.95m | 10:24PM3.58m | 10:41AM3.74m | 11:02PM3.32m | 11:21AM3.51m | 11:43PM3.07m | |||||||
Low Tide | 3:05AM0.51m | 3:24PM0.48m | 3:34AM0.64m | 3:55PM0.57m | 4:03AM0.78m | 4:29PM0.71m | 4:34AM0.94m | 5:07PM0.88m | 5:10AM1.11m | 5:51PM1.07m | 5:54AM1.27m | 6:43PM1.24m | |||||||
 |  | |  | |  |  | | | | | | | | | | | |  | |
 | — | 7:30 | — | — | 7:31 | — | — | 7:33 | — | — | 7:35 | — | — | 7:37 | — | — | 7:39 | — | — |
 | — | — | 4:31 | — | — | 4:30 | — | — | 4:29 | — | — | 4:27 | — | — | 4:25 | — | — | 4:23 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 9 |
Temp °C | 8 | 9 | 10 | 9 | 9 | 10 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 10 | 8 | 11 | 13 | 13 |
Feels °C | 3 | 4 | 5 | 4 | 4 | 6 | 4 | 1 | 1 | 2 | 3 | 5 | 4 | 2 | 5 | -1 | 1 | 4 | 3 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 11 | SW 12 | SW 13 | SW 12 | WSW 12 | SW 11 | SW 10 | SW 10 | SW 10 | SW 9 | SW 9 | SW 8 | SW 11 | SW 10 | WSW 10 | SW 8 | SW 8 | — |
| kJ | 106 | 133 | 195 | 342 | 297 | 255 | 123 | 68 | 64 | 35 | 21 | 13 | 11 | 18 | 28 | 10 | 101 | 126 | — |
Swell 2 Height (m) Direction Period (s) | — | — | WSW 16 | — | — | — | — | NNW 5 | NNW 5 | NW 5 | NW 5 | NNW 4 | WSW 11 | SW 8 | — | SW 10 | SW 8 | WSW 9 | — |
| kJ | — | — | 48 | — | — | — | — | 2 | 3 | 1 | 1 | 2 | 13 | 3 | — | 4 | 18 | 29 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | SW 13 | SW 15 | WSW 13 | — | W 12 | SW 11 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 7 | 8 | 17 | — | 3 | 5 | — | — |
Wind waves Height (m) Direction Period (s) | ESE 4 | ESE 3 | ESE 3 | ENE 3 | ENE 3 | ENE 3 | NE 2 | N 5 | N 5 | N 5 | N 5 | — | — | S 3 | S 4 | S 5 | SSW 7 | SSW 8 | SW 9 |
| kJ | 10 | 9 | 3 | 3 | 3 | 4 | 1 | 18 | 20 | 8 | 4 | — | — | 3 | 6 | 106 | 310 | 449 | 811 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 43 | 33 | 27 | 5 | 5 | 0 | 5 | 47 | 125 | 113 | 113 | 113 | 107 | 107 | 307 | 342 | 329 | 317 | 312 |
Best forecast wave conditions in Lleyn Peninsula | |||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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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