Surf Forecasts:
Porth Ceriad surf forecast from 2 Aug 2026:
- Most powerful swell: Thursday 6 Aug, 1AM (local time) - 6ft (1.9m), 6s period, WSW swell with 275 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 1.9m 6s and forecast to arrive on Thursday (Aug 06) at 1AM. 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 6s period and expected on Thursday (Aug 06) at 7AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Thu 6th Aug) | 6ft (1.9m) 6s |
Table - best surf conditions forecast for Porth Ceriad over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s take a look at what’s on the menu for Porth Ceriad over the next couple of weeks.
Honestly, it’s a pretty bleak picture for the near future. The whole 16-day window is a struggle, with a massive gap of very poor conditions right at the start. For the first week, we’re looking at almost nothing. There are a few tiny pulses of energy, but the winds are all over the place—cross-on, onshore, lumpy, choppy. It’s a write-off for paddle surfing. The only real standout comes much later, and it’s a long shot.
The best of a bad bunch shows up on the morning of Saturday, August 15th. We’ve got a glassy start with a 4ft swell from the west, period around 5 seconds. The combined energy is weak (68), so it’s not going to have much push, but that clean, glassy surface will make it look a lot better than anything else on offer. It’s a beginner-friendly break, so the small size is actually perfect for learning. The water is a touch warmer than normal for this time of year, which is a small bonus.
Before that, the morning of Saturday, August 8th offers a tiny glimmer. A 4ft WSW swell with a light offshore NNW wind at 10 km/h. The wave energy is still modest (74), and the period is short, so it’ll be a bit crumbly, but it’s the only clean, offshore window in the whole first week. It’s surfable, but nothing to write home about.
After that, it's back to the doldrums. The morning of Friday, August 14th is glassy with a 2ft SW swell, but again, it’s just small and weak (48). It’s a beginner’s day, but don’t expect much.
Overall, the surf is poor for the majority of this forecast. The only real window to get excited about is that glassy Saturday the 15th. Keep an eye on it, but don’t hold your breath for anything epic.
- Rusty
Short Range ForecastSome drizzle, heaviest during Wed morning. Warm (max 22°C on Mon morning, min 15°C on Tue night). Winds increasing (calm on Mon night, fresh winds from the WSW by Wed morning). | Days 5-7 Weather SummaryModerate rain (total 10mm), heaviest on Sat morning. Very mild (max 17°C on Wed afternoon, min 13°C on Wed night). Winds decreasing (fresh winds from the W on Wed night, light winds from the SSW by Thu night). | |||||||||||||||||||
Sun 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | ||||||||||||||
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) | SW 8 | WSW 10 | WSW 9 | WSW 8 | SW 8 | SW 8 | SW 5 | SW 6 | WSW 7 | SW 7 | WSW 6 | SW 6 | SW 6 | SW 5 | SW 5 | SW 4 | WSW 6 | W 6 | SW 6 | SW 5 |
Wave Graph  | ||||||||||||||||||||
 kJ | 3 | 9 | 30 | 28 | 32 | 28 | 53 | 156 | 168 | 217 | 275 | 58 | 29 | 23 | 12 | 31 | 126 | 88 | 35 | 7 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-on | cross | on | on | cross-on | cross-on | cross | cross | cross | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-off | cross-off |
High Tide | 11:32PM4.39m | 11:53AM3.96m | 00:11AM4.27m | 12:34PM3.84m | 00:54AM4.07m | 1:20PM3.66m | 1:44AM3.80m | 2:15PM3.45m | 2:46AM3.52m | 3:25PM3.28m | 4:04AM3.34m | 4:47PM3.30m | ||||||||
Low Tide | 6:13PM0.62m | 6:46AM0.54m | 6:45PM0.75m | 7:20AM0.69m | 7:17PM0.91m | 7:56AM0.87m | 7:54PM1.08m | 8:41AM1.07m | 8:50PM1.25m | 9:48AM1.25m | 10:25PM1.35m | 11:26AM1.31m | 00:15AM1.24m | |||||||
 |  |  | |  | | | |  |  |  | | |  | | |  |  | | | |
 | — | — | 5:37 | — | — | 5:39 | — | — | 5:41 | — | — | 5:43 | — | — | 5:45 | — | — | 5:47 | — | — |
 | — | 9:09 | — | — | 9:07 | — | — | 9:06 | — | — | 9:04 | — | — | 9:02 | — | — | 9:00 | — | 8:59 | — |
mm | — | — | — | — | — | — | — | — | 1 | — | — | — | — | 2 | — | 1 | 4 | 3 | — | — |
Temp °C | 19 | 18 | 22 | 20 | 18 | 19 | 18 | 18 | 15 | 17 | 16 | 14 | 15 | 17 | 15 | 16 | 16 | 15 | 16 | 16 |
Feels °C | 16 | 14 | 20 | 15 | 17 | 16 | 13 | 14 | 8 | 11 | 10 | 10 | 11 | 15 | 12 | 12 | 12 | 13 | 15 | 14 |
Swell 1 Height (m) Direction Period (s) | SW 8 | WSW 9 | WSW 9 | WSW 8 | SW 8 | SW 8 | — | — | — | NW 4 | — | SW 6 | SW 6 | NNW 4 | NNW 3 | — | — | SW 11 | SW 6 | SW 5 |
| kJ | 3 | 8 | 30 | 28 | 32 | 28 | — | — | — | 7 | — | 58 | 29 | 2 | 1 | — | — | 5 | 35 | 7 |
Swell 2 Height (m) Direction Period (s) | SW 4 | WSW 10 | — | — | — | — | — | — | — | — | — | W 13 | NNW 5 | SW 12 | SW 12 | — | — | — | — | NNW 4 |
| kJ | 1 | 9 | — | — | — | — | — | — | — | — | — | 3 | 18 | 6 | 6 | — | — | — | — | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | W 12 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 3 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | NE 3 | SE 3 | — | — | S 4 | SW 5 | SW 6 | WSW 7 | SW 7 | WSW 6 | NW 6 | — | SW 5 | SW 5 | SW 4 | WSW 6 | W 6 | NW 4 | — |
| kJ | — | 5 | 5 | — | — | 12 | 53 | 156 | 168 | 217 | 275 | 50 | — | 23 | 12 | 31 | 126 | 88 | 12 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 301 | 113 | 132 | 138 | 186 | 307 | 303 | 307 | 319 | 317 | 333 | 3 | 296 | 191 | 298 | 298 | 60 | 267 | 5 | 113 |
Best forecast wave conditions in Lleyn Peninsula | ||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||
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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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