Surf Forecasts:
Porth Ceriad surf forecast from 2 Aug 2026:
- Most powerful swell: Wednesday 5 Aug, 7PM (local time) - 5ft (1.6m), 6s period, SW swell with 178 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 1.6m 6s and forecast to arrive on Wednesday (Aug 05) at 7PM. 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 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 | 7PM (Wed 5th Aug) | 5ft (1.6m) 6s |
Table - best surf conditions forecast for Porth Ceriad over the next 16 days.
The Lowdown
Well, grab a coffee, mate, because I've had a good look at the charts for Porth Ceriad, and I've got to be straight with you – it's a rough run ahead. For the next 16 days, there's not a single session that’s worth paddling out for. The wave energy is tiny, barely registering, and the swell direction is all over the shop. The first few days of August are a total write-off with swell heights under 3 ft and mostly choppy, onshore winds. Wednesday the 5th shows a bit of a pulse, with the swell bumping up to 5 ft from the SW, but the wind is a fresh cross-onshore at 22 mph, making it a lumpy, blown-out mess. That's more of a kite-surfing breeze than a paddle-surfing one. After that, it drops right back to almost nothing. A few days around the 6th and 7th have some clean, offshore winds, but the swell is just a ripple, less than 2 ft. There's a long gap of flat, clean conditions from the 10th onwards, but with no swell to speak of. The energy levels are pathetic, with 'combined energy of all swells directed here' values stuck in single digits or low double digits (5, 24, 36, 92, 104). It’s a quiet period for this exposed break, and while it tends not to stay this way forever, the forecast is locked in for a flat spell. Keep the board in the car for a photogenic drive, but leave the wetsuit at home.
Rusty
Short Range ForecastLight rain (total 4mm), mostly falling on Mon night. Warm (max 21°C on Mon morning, min 14°C on Sat night). Winds increasing (calm on Sun morning, fresh winds from the SW by Tue afternoon). | Days 4-6 Weather SummaryMostly dry. Very mild (max 18°C on Wed afternoon, min 13°C on Wed night). Winds decreasing (fresh winds from the SW on Wed afternoon, light winds from the NNE by Thu night). | ||||||||||||||||||||
Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | |||||||||||||||
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) | SW 4 | SW 8 | WSW 10 | SW 9 | SW 9 | SW 8 | SSW 8 | SW 7 | SW 5 | WSW 6 | SW 5 | WSW 5 | W 13 | SW 6 | SW 5 | SW 5 | SW 5 | WSW 4 | SW 11 | WSW 4 | WSW 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 3 | 3 | 9 | 20 | 36 | 17 | 76 | 73 | 69 | 104 | 126 | 138 | 3 | 29 | 21 | 6 | 3 | 6 | 5 | 3 | 10 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | off | cross-off | cross-on | cross-off | cross | on | cross-on | cross-on | cross | cross-on | cross-off | cross-off | cross | cross-off | off | cross-off | on | on | cross-on | glassy |
High Tide | 11:15AM4.00m | 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 | 6:12AM0.44m | 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 | — | — | 5:37 | — | — | 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 | — | — | — | — | — | 3 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 18 | 17 | 21 | 18 | 18 | 19 | 19 | 17 | 16 | 18 | 17 | 15 | 15 | 16 | 15 | 16 | 15 | 15 | 16 | 15 |
Feels °C | 16 | 14 | 14 | 19 | 15 | 14 | 17 | 16 | 14 | 11 | 13 | 12 | 10 | 12 | 14 | 12 | 14 | 14 | 14 | 15 | 14 |
Swell 1 Height (m) Direction Period (s) | SW 4 | SW 8 | WSW 9 | SW 9 | SW 9 | SW 8 | SW 8 | SW 7 | SW 7 | — | NNW 4 | — | W 13 | NW 5 | SW 5 | SW 5 | SW 5 | WSW 4 | WSW 4 | — | WSW 4 |
| kJ | 2 | 3 | 8 | 20 | 36 | 17 | 16 | 14 | 2 | — | 2 | — | 3 | 29 | 21 | 6 | 3 | 6 | 1 | — | 10 |
Swell 2 Height (m) Direction Period (s) | SW 8 | SW 4 | WSW 10 | NNW 4 | — | NNW 3 | — | — | — | — | — | — | — | W 12 | SW 12 | NW 4 | NNW 4 | SW 12 | — | — | — |
| kJ | 3 | 1 | 9 | 2 | — | 1 | — | — | — | — | — | — | — | 3 | 6 | 4 | 1 | 5 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 12 | SW 12 | W 12 | — | SW 11 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 6 | 3 | — | 5 | — | — |
Wind waves Height (m) Direction Period (s) | — | — | NNE 3 | SE 3 | NW 3 | — | SSW 8 | SW 7 | SW 5 | WSW 6 | SW 5 | WSW 5 | WNW 6 | SW 6 | NW 4 | — | WSW 5 | — | — | WSW 4 | — |
| kJ | — | — | 4 | 4 | 3 | — | 76 | 73 | 69 | 104 | 126 | 138 | 135 | 25 | 5 | — | 2 | — | — | 3 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 298 | 301 | 113 | 107 | 138 | 134 | 303 | 303 | 307 | 3 | 319 | 332 | 306 | 317 | 305 | 314 | 404 | 298 | 298 | 298 | 298 |
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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