Surf Forecasts:
Porth Ceriad surf forecast from 12 Jul 2026:
- Most powerful swell: Tuesday 14 Jul, 4PM (local time) - 0.5ft (0.1m), 18s period, SW swell with 12 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 0.1m 18s and forecast to arrive on Tuesday (Jul 14) at 4PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Monday (Jul 13) at 7PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4PM (Tue 14th Jul) | 0.5ft (0.1m) 18s |
Table - best surf conditions forecast for Porth Ceriad over the next 16 days.
Alright, let’s break it down. It’s gonna be a tough stretch — a whole lotta flat and weak conditions for the next couple weeks.
From Sunday the 12th all the way through to early Saturday the 26th of July, there’s basically nothing worth getting out of bed for. The combined swell energy barely cracks double digits most days, with tiny 0.3ft to 2ft swells that have no push. Wave reports keep calling it “poor surf conditions” — not much more to say.
The only light at the end of the tunnel comes on Monday morning the 27th of July at Porth Ceriad. Finally, a 3ft swell from the SW with a 8-second period, and energy hits 82. It’s not big, but it’s something. Winds are light offshore out of the NW, so it’ll be clean. That’s beginner-friendly size, good for a fun little cruise. Short period means it’ll be a bit weak, but after all that flatness, you’ll take it.
Everything else is a skip. Just point your board at that Monday morning.
Rusty.
Short Range ForecastMostly dry. Warm (max 30°C on Tue afternoon, min 15°C on Sun night). Winds increasing (light winds from the ENE on Sun morning, fresh winds from the NNE by Mon afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 32°C on Wed afternoon, min 18°C on Thu night). Winds decreasing (fresh winds from the E on Tue night, calm by Fri morning). | ||||||||||||||||||||
Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | |||||||||||||||
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 4 | NW 4 | E 3 | E 3 | W 19 | W 15 | W 18 | SW 18 | E 4 | W 16 | SW 16 | W 16 | SSW 8 | SSW 7 | SW 7 | SW 6 | SSW 6 | SW 6 | SW 6 | SW 6 | SW 5 |
Wave Graph  | |||||||||||||||||||||
 kJ | 0 | 1 | 3 | 1 | 7 | 4 | 6 | 12 | 9 | 5 | 10 | 7 | 8 | 8 | 7 | 10 | 6 | 6 | 6 | 5 | 5 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-on | glassy | cross-off | on | glassy | cross-off | off | glassy | cross-off | cross-off |
High Tide | 6:47AM3.84m | 7:16PM3.99m | 7:44AM4.06m | 8:09PM4.31m | 8:36AM4.23m | 8:59PM4.59m | 9:25AM4.33m | 9:46PM4.77m | 10:12AM4.33m | 10:33PM4.82m | 10:58AM4.23m | 11:18PM4.74m | 11:43AM4.06m | 00:03AM4.51m | |||||||
Low Tide | 2:09PM0.78m | 2:41AM0.60m | 3:06PM0.56m | 3:37AM0.29m | 3:56PM0.38m | 4:27AM0.05m | 4:42PM0.26m | 5:14AM-0.07m | 5:26PM0.24m | 6:00AM-0.05m | 6:08PM0.31m | 6:44AM0.09m | 6:50PM0.46m | ||||||||
 | |  | | | |  | |  |  | | | | | | | |  | | | | |
 | 5:07 | — | — | 5:07 | — | — | 5:09 | — | — | 5:11 | — | — | 5:11 | — | — | 5:13 | — | — | 5:15 | — | — |
 | — | — | 9:37 | — | — | 9:37 | — | — | 9:37 | — | — | 9:36 | — | — | 9:34 | — | — | 9:32 | — | — | 9:31 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — |
Temp °C | 24 | 29 | 24 | 21 | 25 | 23 | 24 | 30 | 25 | 24 | 32 | 28 | 21 | 21 | 19 | 18 | 20 | 19 | 22 | 25 | 26 |
Feels °C | 22 | 24 | 19 | 17 | 20 | 17 | 23 | 26 | 18 | 23 | 27 | 25 | 20 | 19 | 19 | 19 | 20 | 20 | 22 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | NNW 4 | NW 4 | NNW 5 | — | — | NNW 4 | — | N 5 | N 5 | ESE 3 | SW 16 | S 6 | SSW 8 | SSW 7 | SW 7 | SW 6 | SW 4 | SW 6 | SW 6 | SW 6 | SW 5 |
| kJ | 2 | 1 | 2 | — | — | 3 | — | 2 | 2 | 4 | 10 | 1 | 6 | 5 | 7 | 10 | 3 | 5 | 6 | 5 | 4 |
Swell 2 Height (m) Direction Period (s) | — | — | — | SE 4 | W 19 | W 15 | W 18 | SW 18 | W 14 | — | — | SW 13 | SW 14 | SW 14 | — | W 12 | SSW 6 | SW 13 | — | — | SW 11 |
| kJ | — | — | — | 1 | 7 | 4 | 6 | 12 | 4 | — | — | 7 | 8 | 8 | — | 3 | 4 | 6 | — | — | 5 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | W 15 | — | — | — | — | W 16 | W 13 | W 16 | W 14 | W 8 | SW 12 | — | SW 12 | W 13 | — | — | — |
| kJ | — | — | — | — | 4 | — | — | — | — | 5 | 3 | 5 | 4 | 1 | 6 | — | 6 | 3 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | E 3 | E 3 | — | ENE 3 | NE 3 | — | E 4 | — | ESE 3 | ESE 3 | ESE 3 | — | — | — | — | — | — | — | — |
| kJ | — | — | 3 | 1 | — | 2 | 1 | — | 9 | — | 2 | 5 | 1 | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 336 | 189 | 345 | 261 | 255 | 254 | 133 | 113 | 254 | 133 | 298 | 314 | 317 | 377 | 308 | 395 | 503 | 315 | 410 | 869 | 350 |
Best forecast wave conditions in Lleyn Peninsula | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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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