
Surf Forecasts:
Porth Ceriad surf forecast from 26 Jul 2026:
- Best quality surf: Sunday 2 Aug, 4AM (local time) - 4.5ft (1.3m), 7s period, SW swell with cross-offshore winds.
- Most powerful swell: Sunday 2 Aug, 4AM (local time) - 4.5ft (1.3m), 7s period, SW swell with 155 kJ wave energy.
- Next surfable swell (1★+): Saturday 1 Aug, 7PM (local time) - 3.5ft (1.0m), 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 Saturday (Aug 01) at 7PM. The primary swell is predicted to be 1.0m and 6s 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 1.3m 7s and forecast to arrive on Sunday (Aug 02) at 4AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 5s period and expected on Sunday (Jul 26) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Sat 1st Aug) | 3.5ft (1.0m) 6s |
| Best Surf | 4AM (Sun 2nd Aug) | 4.5ft (1.3m) 7s |
| Most Powerful | 4AM (Sun 2nd Aug) | 4.5ft (1.3m) 7s |
Table - best surf conditions forecast for Porth Ceriad over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s break down what’s cookin’ for the next couple of weeks around Porth Ceriad. I’ll be straight with ya – it’s a rough patch. We’re lookin’ at a long dry spell before anything even worth paddlin’ for shows up.
The first real chance to get wet doesn’t come until Sunday, August 2nd, and even then it’s barely a whisper. We’ve got a solid week of zero action before that, with nothin’ but poor surf conditions and onshore chop. The wind is mostly cross-on or cross-off, sometimes howlin’, and the swell is flat or just ankle-biters. The water temp is about average for the time of year, but you won’t care about that when you’re sittin’ on a flat board.
On Sunday morning, August 2nd, we finally see a little pulse of life. The swell comes in at 2.6 feet from the southwest, with a period of 7 seconds. The combined energy is weak at 64. It’s not big, but the wind goes glassy – dead calm – with a clean, glassy surface. That’s the best we’ll see. The break is Porth Ceriad itself, a fairly consistent spot that’s exposed to the southwest swell. It’s a beginner-friendly wave, but it often gets crowded, so don’t expect to have it to yourself. The wave will be small and clean, a proper longboard or funboard session. The offshore wind is from the ENE, which is clean for the wave face.
Later that afternoon, the wind switches to a gentle offshore from the NNW, keepin’ it clean, but the swell drops to 2 feet with only 33 energy. It’s rideable, but you’ll be huntin’ for the little ones.
After that, the outlook goes back to poor. The rest of the first week of August looks messy, with strong onshore winds and a bit of rain mixed in. By Tuesday, August 4th, the wind is up to 25 mph from the southwest, and the surf is just messy cross-onshore slop. The combined energy is a paltry 17. It’s not worth the effort.
The second week carries on in the same vein. A few moments of glassy or clean conditions pop up on Saturday, August 8th, with a tiny 1.6 foot southwest swell and a glassy morning, but the energy is only 12. It’s a nice morning to be on the beach, maybe, but not to surf. Sunday, August 9th, is more of the same – tiny, clean, but weak.
The only real standout, and I mean the only one, is that Sunday morning, August 2nd. It’s the best on offer: clean, glassy, and small. If you’re a beginner or just want to get a few gentle rides in, that’s your window. For everyone else, it’s a long wait for a tiny wave.
Short Range ForecastSome drizzle, heaviest during Mon afternoon. Very mild (max 19°C on Mon night, min 14°C on Sun night). Winds decreasing (fresh winds from the W on Sat night, light winds from the SSE by Tue afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Wed morning, min 14°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | |||||||||||||||
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 | WNW 6 | WNW 5 | WSW 4 | SW 4 | SW 6 | SW 5 | SW 5 | SW 4 | WSW 4 | SW 4 | WSW 5 | W 5 | WSW 5 | SW 5 | SW 6 | SW 5 | WSW 4 | SSE 2 | SW 6 | SSW 6 |
Wave Graph | |||||||||||||||||||||
0 | 0 | 0 | 16 | 28 | 52 | 41 | 10 | 4 | 1 | 1 | 28 | 24 | 17 | 18 | 8 | 4 | 2 | 1 | 82 | 77 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-on | cross-on | on | cross-on | cross-on | on | glassy | cross-off | on | cross-on | cross | cross-off | glassy | glassy | glassy | cross-off | cross | glassy |
High Tide | 6:59AM3.15m | 7:22PM3.37m | 7:44AM3.33m | 8:04PM3.61m | 8:23AM3.51m | 8:41PM3.85m | 8:59AM3.68m | 9:16PM4.07m | 9:32AM3.82m | 9:49PM4.25m | 10:06AM3.92m | 10:23PM4.38m | 10:40AM3.99m | 10:57PM4.42m | |||||||
Low Tide | 2:08PM1.25m | 2:38AM1.09m | 2:51PM1.04m | 3:18AM0.86m | 3:28PM0.83m | 3:55AM0.66m | 4:02PM0.66m | 4:30AM0.51m | 4:35PM0.55m | 5:04AM0.42m | 5:09PM0.50m | 5:38AM0.39m | 5:41PM0.53m | ||||||||
5:26 | — | — | 5:26 | — | — | 5:28 | — | — | 5:30 | — | — | 5:31 | — | — | 5:33 | — | — | 5:35 | — | — | |
— | — | 9:21 | — | — | 9:20 | — | — | 9:17 | — | — | 9:16 | — | — | 9:15 | — | — | 9:13 | — | — | 9:12 | |
mm | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 17 | 17 | 15 | 17 | 19 | 19 | 19 | 18 | 22 | 21 | 19 | 17 | 18 | 18 | 14 | 15 | 16 | 15 | 16 | 16 |
Feels °C | 9 | 13 | 13 | 11 | 16 | 19 | 18 | 18 | 18 | 23 | 19 | 18 | 15 | 15 | 13 | 13 | 14 | 14 | 13 | 14 | 14 |
Swell 1 Height (m) Direction Period (s) | — | — | — | NW 5 | NNW 4 | — | — | SW 5 | SW 4 | WSW 4 | SW 4 | WSW 5 | — | NW 4 | SW 5 | NW 4 | SW 5 | WSW 4 | — | — | SW 6 |
— | — | — | 11 | 2 | — | — | 10 | 4 | 1 | 1 | 28 | — | 2 | 18 | 5 | 4 | 2 | — | — | 10 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 6 | NW 4 | — | SW 4 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 8 | 2 | — | 1 | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | W 5 | WNW 6 | WNW 5 | WSW 4 | SW 4 | SW 6 | SW 5 | — | — | — | — | WSW 5 | W 5 | WSW 5 | — | — | — | — | SSE 2 | SW 6 | SSW 6 |
121 | 98 | 40 | 16 | 28 | 52 | 41 | — | — | — | — | 14 | 24 | 17 | — | — | — | — | 1 | 82 | 77 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 619 | 494 | 292 | 295 | 301 | 294 | 255 | 265 | 254 | 280 | 301 | 303 | 358 | 289 | 296 | 186 | 254 | 298 | 191 | 13 | 0 |
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)
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.










