Surf Forecasts:
Porth Ceriad surf forecast from 5 Aug 2026:
- Most powerful swell: Wednesday 5 Aug, 1PM (local time) - 4.5ft (1.4m), 5s period, W swell with 106 kJ wave energy.
Best Forecast Surf Conditions for Porth Ceriad this week:
The most powerful waves expected at Porth Ceriad in the next 16 days are 1.4m 5s and forecast to arrive on Wednesday (Aug 05) at 1PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Thursday (Aug 06) at 4AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1PM (Wed 5th Aug) | 4.5ft (1.4m) 5s |
Table - best surf conditions forecast for Porth Ceriad over the next 16 days.
The Lowdown
Right then, let’s have a look at what’s on offer for Porth Ceriad over the next couple of weeks.
To be honest, it’s a pretty grim start. We’re looking at a solid run of flat, messy, or just plain poor surf conditions from now all the way through to the middle of next week. There’s a long stretch with no real recommendations, so don’t bother checking the cam for a while. The water temperature is sitting at 64° which is much warmer than normal for this time of year, but that’s about the only exciting thing going on.
The first real hint of life doesn’t show up until Monday the 17th of August. Early that morning, we’ve got a bit of a pulse coming in. The swell is pushing 8ft from the WSW, with a period of 11 seconds. That’s a proper groundswell, and it’s carrying a lot of energy – the combined energy is a hefty 1576. Now, that’s a lot of water moving, and for a beginner spot like Porth Ceriad, that’s way too big and will be expert territory only. The wind is a fresh cross-offshore from the NW, which should keep things clean. But the swell direction is W, and the optimum here is SW, so it’s a bit of a cross-up. It’s the only standout in the whole window, but it’s a big one – just know it’s for experienced surfers only, and with that size, the rip will be pumping.
After that, Tuesday the 18th and Wednesday the 19th see the swell drop back down to nothing much, with clean but tiny waves. So really, you’ve got that one big Monday morning session, and then it’s back to the waiting game.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Wed afternoon. Very mild (max 17°C on Wed afternoon, min 13°C on Wed night). Winds decreasing (fresh winds from the W on Wed morning, light winds from the SW by Thu afternoon). | Days 4-6 Weather SummaryMostly dry. Very mild (max 18°C on Sun afternoon, min 14°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | |||||||||||||||
AM | 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) | W 5 | W 5 | SW 6 | WSW 6 | NW 5 | SW 4 | SW 4 | SW 5 | SW 4 | SSW 3 | SW 4 | SW 7 | SW 7 | WSW 5 | SW 5 | WSW 6 | SW 5 | SW 4 | WSW 4 | WSW 6 | W 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 81 | 92 | 25 | 23 | 13 | 17 | 9 | 8 | 9 | 5 | 5 | 16 | 18 | 17 | 16 | 26 | 14 | 5 | 2 | 4 | 3 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | on | on | cross-on | cross-on | cross-off | off | cross-off | cross-off | cross-off | cross |
High Tide | 1:20PM3.66m | 1:44AM3.80m | 2:15PM3.45m | 2:46AM3.52m | 3:25PM3.28m | 4:04AM3.34m | 4:47PM3.30m | 5:27AM3.38m | 6:03PM3.53m | 6:38AM3.60m | 7:06PM3.90m | 7:36AM3.87m | 7:59PM4.30m | ||||||||
Low Tide | 7:54PM1.08m | 8:41AM1.07m | 8:50PM1.25m | 9:48AM1.25m | 10:25PM1.35m | 11:26AM1.31m | 00:15AM1.24m | 12:58PM1.15m | 1:37AM0.91m | 2:04PM0.85m | 2:37AM0.52m | 2:57PM0.55m | 3:28AM0.17m | ||||||||
 |  |  | | |  | | |  | | | | | |  |  | | | | | | |
 | 5:41 | — | — | 5:43 | — | — | 5:45 | — | — | 5:47 | — | — | 5:48 | — | — | 5:50 | — | — | 5:52 | — | — |
 | — | — | 9:04 | — | — | 9:02 | — | — | 9:00 | — | 8:59 | — | — | 8:57 | — | — | 8:54 | — | — | 8:52 | — |
mm | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 17 | 15 | 13 | 15 | 17 | 16 | 16 | 15 | 16 | 17 | 17 | 17 | 18 | 17 | 16 | 17 | 16 | 17 | 18 | 19 |
Feels °C | 8 | 11 | 9 | 9 | 12 | 14 | 12 | 14 | 13 | 13 | 15 | 15 | 16 | 17 | 16 | 13 | 14 | 13 | 16 | 15 | 16 |
Swell 1 Height (m) Direction Period (s) | — | NW 5 | SW 6 | WSW 6 | NW 5 | NW 4 | SW 4 | — | SW 4 | SW 11 | SW 8 | SW 7 | SW 7 | WSW 5 | SW 5 | WSW 6 | SW 5 | SW 4 | WSW 4 | WSW 6 | SW 6 |
| kJ | — | 25 | 25 | 23 | 11 | 1 | 9 | — | 9 | 5 | 3 | 14 | 11 | 17 | 16 | 22 | 14 | 5 | 1 | 4 | 1 |
Swell 2 Height (m) Direction Period (s) | — | W 13 | W 13 | W 13 | WSW 6 | SW 12 | — | W 12 | SW 12 | — | — | WSW 7 | — | NW 4 | — | — | NW 4 | — | SW 5 | W 6 | — |
| kJ | — | 3 | 3 | 3 | 13 | 6 | — | 3 | 5 | — | — | 5 | — | 2 | — | — | 6 | — | 1 | 1 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | W 12 | — | SW 12 | — | — | — | — | — | — | SW 12 | — | — | — | — | SW 6 | — | W 12 |
| kJ | — | — | — | — | 3 | — | 6 | — | — | — | — | — | — | 6 | — | — | — | — | 2 | — | 3 |
Wind waves Height (m) Direction Period (s) | W 5 | W 5 | NW 5 | NW 5 | — | SW 4 | — | SW 5 | — | SSW 3 | SW 4 | SW 4 | WSW 4 | W 4 | NW 3 | W 4 | — | — | — | — | E 2 |
| kJ | 81 | 92 | 49 | 39 | — | 17 | — | 8 | — | 4 | 5 | 16 | 18 | 12 | 5 | 26 | — | — | — | — | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 511 | 507 | 354 | 141 | 370 | 316 | 307 | 303 | 298 | 298 | 306 | 130 | 298 | 298 | 138 | 401 | 317 | 305 | 317 | 317 | 306 |
Best forecast wave conditions in Lleyn Peninsula | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Latest Updates
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.
Nearest