Surf Forecasts:
Porth Ceriad surf forecast from 22 Jul 2026:
- Best quality surf: Wednesday 29 Jul, 1AM (local time) - 4ft (1.2m), 5s period, WSW swell with offshore winds.
- Most powerful swell: Wednesday 29 Jul, 1AM (local time) - 4ft (1.2m), 5s period, WSW swell with 72 kJ wave energy.
- Next surfable swell (1★+): Wednesday 29 Jul, 1AM (local time) - 4ft (1.2m), 5s period with WSW 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 Wednesday (Jul 29) at 1AM. The primary swell is predicted to be 1.2m and 5s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Porth Ceriad in the next 16 days are 1.2m 5s and forecast to arrive on Wednesday (Jul 29) at 1AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Wednesday (Jul 22) at 4PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Wed 29th Jul) | 4ft (1.2m) 5s |
| Best Surf | 1AM (Wed 29th Jul) | 4ft (1.2m) 5s |
| Most Powerful | 1AM (Wed 29th Jul) | 4ft (1.2m) 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 the cards for Porth Ceriad.
Mate, I’ve gotta be straight with you – the next sixteen days are a real struggle. There’s a long, dry gap of just over a week with virtually nothing to get excited about. The first few days are flat, and the only time we see any real energy building is right at the end of the run. The water is sitting at 66°, which is a hefty 6° warmer than usual for this time of year – that’s a very unusual warm spell, so you’ll be in boardies more than a steamer.
We finally get a whisper of life on Monday the 3rd of August. The afternoon sees a tiny 3ft SW swell trickle in. It’s not much, but the wind goes glassy, dead calm. That’s the only standout moment of the whole forecast – a clean, empty lineup. The combined energy is weak (73), so don’t expect any power. For a beginner spot like this, it’s the best you’ll get, but it’s barely surfable.
The next day, Tuesday the 4th, the swell bumps up to 4ft from the SW, with a moderate combined energy (116), but it’s crossed up and messy. By Friday the 2nd of August, the swell tries to push a bit taller – 4ft to 5ft from the SW – but it’s all onshore and lumpy, with energy readings of 124 and 147. That’s too rough and blown out for a decent paddle. Given the beach setup and the strong cross-onshore wind, this stretch looks more interesting for the kite crew than for us.
Honestly, if you’re desperate for a wave, that glassy Monday afternoon is your one shot. Otherwise, it’s a long wait.
- Rusty
Short Range ForecastMostly dry. Very mild (max 18°C on Thu afternoon, min 13°C on Wed morning). Winds decreasing (fresh winds from the NNW on Thu afternoon, light winds from the WNW by Fri night). | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Sat morning. Very mild (max 17°C on Sat afternoon, min 13°C on Sun night). Winds decreasing (fresh winds from the WSW on Sat morning, light winds from the W by Sat night). | ||||||||||||||||||||
Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | |||||||||||||||
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) | NW 6 | NNW 5 | NNW 5 | NNW 6 | NNW 4 | N 3 | W 13 | W 13 | — | WSW 4 | WSW 5 | SW 6 | WSW 6 | WSW 6 | SW 6 | SW 6 | SW 3 | SW 4 | SW 6 | SW 4 | WSW 5 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 3 | 0 | 21 | 32 | 30 | 21 | 24 | 8 | 9 | 5 | 16 | 25 | 23 | 72 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | off | off | off | off | cross-off | cross-off | cross-on | cross | cross | cross | cross-off | cross-off | cross-off | cross-on | on | on | on | cross-on | off |
High Tide | 3:07PM3.10m | 3:38AM3.13m | 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 | ||||||||
Low Tide | 9:49PM1.39m | 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 | ||||||||
 |  |  |  | |  | | | |  | |  | | | | | | | | | | |
 | 5:20 | — | — | 5:20 | — | — | 5:22 | — | — | 5:24 | — | — | 5:26 | — | — | 5:26 | — | — | 5:28 | — | — |
 | — | — | 9:27 | — | — | 9:25 | — | — | 9:23 | — | — | 9:22 | — | — | 9:21 | — | — | 9:20 | — | — | 9:17 |
mm | — | — | — | — | — | — | — | — | — | 4 | — | 3 | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 17 | 16 | 16 | 18 | 18 | 16 | 17 | 16 | 15 | 17 | 16 | 15 | 17 | 16 | 15 | 16 | 16 | 17 | 17 | 17 |
Feels °C | 13 | 12 | 13 | 13 | 14 | 15 | 14 | 15 | 15 | 10 | 15 | 15 | 10 | 13 | 11 | 11 | 12 | 13 | 13 | 13 | 17 |
Swell 1 Height (m) Direction Period (s) | NW 6 | — | NNW 5 | — | — | N 5 | NNW 5 | — | — | — | — | SW 6 | WSW 6 | WSW 6 | SW 6 | SW 6 | NNW 4 | — | WSW 6 | — | — |
| kJ | 1 | — | 15 | — | — | 2 | 4 | — | — | — | — | 30 | 21 | 24 | 8 | 9 | 1 | — | 12 | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | W 13 | W 13 | — | — | — | — | — | — | — | NW 4 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | 3 | 3 | — | — | — | — | — | — | — | 2 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNW 6 | NNW 5 | NNW 5 | NNW 6 | NNW 4 | N 3 | — | — | — | WSW 4 | WSW 5 | NW 4 | NNW 4 | NW 3 | — | — | SW 3 | SW 4 | SW 6 | SW 4 | WSW 5 |
| kJ | 27 | 42 | 22 | 33 | 31 | 3 | — | — | — | 21 | 32 | 4 | 1 | 2 | — | — | 5 | 16 | 25 | 23 | 72 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 303 | 321 | 77 | 213 | 270 | 254 | 324 | 1030 | 382 | 373 | 373 | 290 | 327 | 141 | 125 | 138 | 303 | 223 | 280 | 301 | 0 |
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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