Surf Forecasts:
Porth Ceriad surf forecast from 23 Jul 2026:
- Most powerful swell: Saturday 25 Jul, 1PM (local time) - 3.5ft (1.1m), 5s period, WSW swell with 48 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 1.1m 5s and forecast to arrive on Saturday (Jul 25) 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 0.8m 4s period and expected on Sunday (Jul 26) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1PM (Sat 25th Jul) | 3.5ft (1.1m) 5s |
Table - best surf conditions forecast for Porth Ceriad over the next 16 days.
The Lowdown
Hey folks, Rusty here. Let’s be straight with you – this 16-day stretch for Porth Ceriad is a tough one. For the first ten days, it’s pretty much a write-off. We’re looking at a long, flat spell with nothing worth paddling out for. The water is sitting at 66°F right now, which is a whopping 6°F warmer than usual for this time of year – that’s really unusual and feels more like a bath than the Atlantic.
The first real glimpse of hope doesn’t show up until Sunday, August 2nd. The morning starts to build with a 6ft swell from the west, but it’s still a bit messy and only a marginal call. The afternoon, however, is where things get interesting. By Sunday afternoon, we’ve got a 6ft swell rolling in from the southwest, with a period of 6 seconds and the combined wave energy clocking in at 334 (moderate). The wind is a gentle offshore from the NNW, making for clean conditions. This is the best we’ll see for a while, but it’s far from a classic.
Then Monday, August 3rd, is a real teaser. The morning brings a big 10ft swell from the WSW with a period of 8 seconds and a massive 993 combined energy (strong). But here’s the kicker – the swell is predicted to be too big for this break, and it kicks up a warning that it’s only for experts. The wind is light and offshore from the ENE, so the conditions would be clean, but for most of us, this is a day to watch from the cliff. The afternoon drops to 8ft, still big, with a moderate offshore breeze from the north, but it’s still a heavy session.
After that, the surf fades fast. The rest of the week into early August drops back to tiny, weak, and messy conditions, with onshore winds and no energy. You’ll be waiting a long time for another proper wave.
The one standout in this whole outlook is the Sunday afternoon session on August 2nd. Porth Ceriad is a fairly consistent spot, exposed to the southwest, so the 6ft swell from the southwest with a clean offshore breeze makes it the only real window for a decent paddle. Keep in mind, it’s often crowded here, so expect some company. For the rest, it’s a waiting game.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Sat morning. Very mild (max 17°C on Thu afternoon, min 14°C on Thu night). Mainly fresh winds. | Days 4-6 Weather SummarySome drizzle, heaviest during Tue afternoon. Very mild (max 18°C on Tue afternoon, min 13°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | |||||||||||||||
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) | NNW 5 | NNW 4 | N 5 | W 13 | W 13 | — | W 4 | WSW 5 | SW 6 | WSW 5 | WSW 6 | SW 6 | NW 4 | WSW 6 | WSW 4 | SW 4 | WSW 4 | W 5 | WSW 3 | — | — |
Wave Graph  | |||||||||||||||||||||
 kJ | 0 | 0 | 0 | 3 | 3 | 0 | 14 | 39 | 27 | 15 | 23 | 9 | 13 | 3 | 3 | 3 | 1 | 1 | 1 | 0 | 0 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | cross-off | on | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | on | on | on | cross-on | on | cross-on | cross | cross-off |
High Tide | 4:19PM2.98m | 4:54AM2.99m | 5:31PM3.01m | 6:03AM3.01m | 6:32PM3.16m | 6:59AM3.15m | 7:22PM3.37m | 7:44AM3.33m | 8:04PM3.61m | 8:23AM3.51m | 8:41PM3.85m | 8:59AM3.68m | 9:16PM4.07m | ||||||||
Low Tide | 10:30AM1.41m | 11:05PM1.51m | 11:50AM1.50m | 00:39AM1.48m | 1:12PM1.43m | 1:49AM1.31m | 2:08PM1.25m | 2:38AM1.09m | 2:51PM1.04m | 3:18AM0.86m | 3:28PM0.83m | 3:55AM0.66m | 4:02PM0.66m | ||||||||
 | |  | | |  |  |  |  | | | | | | | | | | |  | | |
 | 5:20 | — | — | 5:22 | — | — | 5:24 | — | — | 5:26 | — | — | 5:26 | — | — | 5:28 | — | — | 5:30 | — | — |
 | — | — | 9:25 | — | — | 9:23 | — | — | 9:22 | — | — | 9:21 | — | — | 9:20 | — | — | 9:17 | — | — | 9:16 |
mm | — | — | — | — | — | — | 2 | — | 1 | — | — | — | — | — | — | — | 1 | — | — | — | — |
Temp °C | 16 | 17 | 16 | 15 | 17 | 16 | 15 | 17 | 17 | 16 | 17 | 16 | 14 | 15 | 16 | 17 | 18 | 18 | 18 | 19 | 19 |
Feels °C | 12 | 12 | 13 | 13 | 16 | 14 | 10 | 15 | 16 | 12 | 13 | 12 | 11 | 12 | 14 | 17 | 20 | 19 | 19 | 19 | 18 |
Swell 1 Height (m) Direction Period (s) | — | — | N 5 | NNW 5 | — | — | — | — | SW 6 | WSW 5 | WSW 6 | SW 6 | NW 4 | NW 4 | WSW 4 | SW 4 | WSW 4 | SW 4 | WSW 3 | — | — |
| kJ | — | — | 2 | 2 | — | — | — | — | 27 | 15 | 23 | 9 | 13 | 4 | 3 | 3 | 1 | 1 | 1 | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | N 5 | W 13 | W 13 | — | — | — | — | WSW 7 | NNW 5 | — | SW 5 | WSW 6 | — | W 5 | — | W 5 | — | — | — |
| kJ | — | — | 1 | 3 | 3 | — | — | — | — | 5 | 15 | — | 7 | 3 | — | 1 | — | 1 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNW 5 | NNW 4 | N 3 | — | — | — | W 4 | WSW 5 | NW 4 | NW 4 | NW 5 | NW 4 | — | — | — | — | — | — | — | — | — |
| kJ | 30 | 25 | 2 | — | — | — | 14 | 39 | 7 | 25 | 13 | 16 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 254 | 983 | 298 | 411 | 1028 | 805 | 373 | 373 | 290 | 443 | 141 | 125 | 298 | 303 | 216 | 254 | 298 | 298 | 303 | 306 | 248 |
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)
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