Surf Forecasts:
Porth Ceriad surf forecast from 29 Jun 2026:
- Best quality surf: Wednesday 1 Jul, 1AM (local time) - 2.5ft (0.8m), 6s period, SW swell with cross-offshore winds.
- Most powerful swell: Thursday 2 Jul, 4AM (local time) - 6ft (1.9m), 6s period, SW swell with 312 kJ wave energy.
- Next surfable swell (1★+): Wednesday 1 Jul, 1AM (local time) - 2.5ft (0.8m), 6s 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 Wednesday (Jul 01) at 1AM. The primary swell is predicted to be 0.8m and 6s period with a secondary swell of 0.4m and 10s. 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 1.9m 6s and forecast to arrive on Thursday (Jul 02) at 4AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Thursday (Jul 02) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Wed 1st Jul) | 2.5ft (0.8m) 6s |
| Best Surf | 1AM (Wed 1st Jul) | 2.5ft (0.8m) 6s |
| Most Powerful | 4AM (Thu 2nd Jul) | 6ft (1.9m) 6s |
Table - best surf conditions forecast for Porth Ceriad over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 17°C on Tue night, min 13°C on Tue night). Winds increasing (light winds from the SW on Tue night, fresh winds from the SW by Wed night). | Days 5-7 Weather SummaryMostly dry. Warm (max 21°C on Sat night, min 15°C on Thu afternoon). Wind will be generally light. | ||||||||||||||||||||
Mon 29 | Tuesday 30 | Wednesday 1 | Thursday 2 | Friday 3 | Saturday 4 | Sunday 5 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SW 7 | SW 6 | SSW 5 | SW 6 | SW 6 | WSW 11 | WSW 10 | SW 6 | SW 7 | SW 7 | SW 6 | SW 4 | SW 5 | SW 6 | WSW 6 | WSW 4 | SW 5 | WSW 5 | WSW 5 | W 9 | SW 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 36 | 11 | 54 | 116 | 49 | 78 | 65 | 214 | 118 | 57 | 20 | 26 | 90 | 38 | 21 | 8 | 6 | 2 | 2 | 2 | 6 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | cross-on | cross-off | cross-off | cross-on | cross-on | cross-off | cross-off | cross-on | on | cross-on | glassy | cross-on | cross-on | cross-off | cross-off | cross-off | glassy | cross-on |
High Tide | 8:57PM3.88m | 9:16AM3.71m | 9:33PM3.99m | 9:51AM3.74m | 10:09PM4.07m | 10:26AM3.74m | 10:44PM4.11m | 11:02AM3.72m | 11:20PM4.11m | 11:38AM3.67m | 11:57PM4.06m | 12:18PM3.60m | 00:38AM3.97m | ||||||||
Low Tide | 4:11AM0.73m | 4:21PM0.78m | 4:49AM0.66m | 4:56PM0.73m | 5:26AM0.63m | 5:32PM0.73m | 6:04AM0.65m | 6:07PM0.77m | 6:42AM0.70m | 6:43PM0.85m | 7:20AM0.77m | 7:19PM0.97m | 7:58AM0.85m | ||||||||
 |  |  |  | | | | | | | | | |  | | | | | | | | |
 | — | — | 4:56 | — | — | 4:56 | — | — | 4:58 | — | — | 4:58 | — | — | 4:58 | — | — | 5:00 | — | — | 5:01 |
 | — | 9:45 | — | — | 9:45 | — | — | 9:45 | — | — | 9:45 | — | — | 9:45 | — | — | 9:44 | — | — | 9:44 | 9:43 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 15 | 16 | 16 | 17 | 14 | 14 | 16 | 14 | 16 | 16 | 16 | 19 | 19 | 18 | 20 | 21 | 16 | 17 | 17 | 19 |
Feels °C | 12 | 12 | 11 | 13 | 16 | 12 | 11 | 11 | 11 | 14 | 14 | 12 | 18 | 19 | 17 | 18 | 21 | 14 | 17 | 17 | 18 |
Swell 1 Height (m) Direction Period (s) | WNW 3 | SW 6 | SW 13 | SW 12 | SW 6 | WSW 11 | WSW 10 | — | SW 7 | SW 7 | SW 6 | — | — | SW 6 | WNW 3 | W 11 | SW 5 | WSW 5 | WSW 5 | SW 4 | W 9 |
| kJ | 1 | 11 | 7 | 6 | 49 | 78 | 65 | — | 118 | 57 | 20 | — | — | 38 | 1 | 2 | 6 | 2 | 2 | 1 | 2 |
Swell 2 Height (m) Direction Period (s) | SW 13 | SW 13 | W 13 | — | WSW 10 | WSW 11 | NW 4 | — | — | NW 5 | NNW 4 | W 11 | — | W 11 | W 11 | W 10 | W 10 | — | — | W 9 | — |
| kJ | 7 | 7 | 3 | — | 38 | 22 | 6 | — | — | 21 | 2 | 3 | — | 2 | 2 | 2 | 2 | — | — | 2 | — |
Swell 3 Height (m) Direction Period (s) | W 10 | W 13 | — | — | — | — | — | — | — | — | — | — | — | — | W 11 | — | — | W 10 | W 10 | — | — |
| kJ | 2 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | 2 | 2 | — | — |
Wind waves Height (m) Direction Period (s) | SW 7 | SW 4 | SSW 5 | SW 6 | — | NW 4 | — | SW 6 | NW 4 | NW 5 | — | SW 4 | SW 5 | WNW 4 | WSW 6 | WSW 4 | NW 3 | — | — | — | SW 4 |
| kJ | 36 | 8 | 54 | 116 | — | 16 | — | 214 | 25 | 12 | — | 26 | 90 | 1 | 21 | 8 | 2 | — | — | — | 6 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 141 | 132 | 301 | 103 | 0 | 3 | 307 | 267 | 126 | 0 | 125 | 252 | 301 | 0 | 252 | 345 | 138 | 138 | 306 | 133 | 186 |
Best forecast wave conditions in Lleyn Peninsula | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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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