Surf Forecasts:
Porth Ceriad surf forecast from 14 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 offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Saturday (Jul 18) at 4PM.
| 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.
The Lowdown
Alright, Rusty here. Let’s be straight with you about Porth Ceriad. This is a tough one to call. The whole 16-day window is looking pretty flat and lifeless, so we’re going to have to wait for something, anything, to show up.
There’s a massive gap of no surf to start. From now until the 21st of July, it’s basically dead. Tiny dribbles of swell, readings of 0.3ft and a combined energy that’s barely a whisper (6 is the highest in that first week), so don’t even bother. It’s a total write-off. The wind is often offshore or glassy, which would be a dream, but with no waves, it’s just a flat, clean pond.
Things stay quiet through the 22nd and 23rd. Then, on the morning of the 26th of July, we finally see a tiny pulse of life. It’s still poor surf, but there’s a little 1.6ft swell from the SW with a period of 4 seconds. That’s short period, weak stuff. The wind is cross-offshore, so it’s clean, but the energy is a paltry 14. It’s not worth a paddle.
The real, and only, chance of something surfable comes on the 27th of July. Monday morning sees a 4.3ft swell from the WSW, with a 6-second period. The combined energy hits 123, which is moderate, so there’s some actual push in the water. But here’s the killer: the wind is a moderate cross-onshore from the SW at 16 mph. It’s going to be choppy and messy. The afternoon is even worse with the same size swell but a 19 mph wind. This is a beach break, and with that strong cross-onshore wind, it’s going to be a lumpy, blown-out mess. Honestly, that setup looks more interesting for a kite surfer than a paddle surfer.
The 28th and 29th are just more of the same: dropping swell and strong, messy onshore winds. There are no standouts here. No hidden gems. The only break in the whole file is Porth Ceriad, and for a beginner-friendly spot, this run of tiny, windy, or non-existent surf is a real bummer.
Forget the board for the next two weeks, mate. The forecast is a blank page. Maybe check back, but right now, it’s a no-go.
Short Range ForecastMostly dry. Warm (max 25°C on Tue afternoon, min 16°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 23°C on Fri afternoon, min 12°C on Sat night). Winds increasing (calm on Fri morning, fresh winds from the NNW by Sat afternoon). | ||||||||||||||||||||
Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||||
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 18 | SW 18 | W 14 | W 16 | SW 16 | E 3 | SW 14 | SW 14 | SW 12 | W 12 | SW 12 | SW 13 | SW 6 | S 6 | SW 11 | NNW 5 | NNW 3 | NNW 4 | NNW 4 | NNW 4 | N 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 6 | 12 | 4 | 5 | 10 | 5 | 8 | 8 | 6 | 3 | 6 | 6 | 1 | 1 | 5 | 0 | 0 | 0 | 0 | 0 | 0 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | cross-off | off | cross | cross-off | off | off | glassy | off | off | off | off | off | off | cross-off | cross-off | glassy | cross-off | off |
High Tide | 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 | 12:29PM3.83m | 00:49AM4.19m | 1:15PM3.57m | 1:38AM3.80m | |||||||
Low Tide | 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 | 7:26AM0.32m | 7:30PM0.68m | 8:08AM0.62m | 8:12PM0.93m | ||||||||
 | |  | | | | | | | | | |  | | | | | | | | | |
 | 5:09 | — | — | 5:11 | — | — | 5:11 | — | — | 5:13 | — | — | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — |
 | — | — | 9:37 | — | — | 9:36 | — | — | 9:34 | — | — | 9:32 | — | — | 9:31 | — | — | 9:30 | — | — | 9:30 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 25 | 25 | 22 | 25 | 25 | 23 | 25 | 22 | 22 | 23 | 20 | 14 | 17 | 15 | 16 | 18 | 16 | 17 | 18 | 18 |
Feels °C | 19 | 20 | 20 | 23 | 22 | 21 | 22 | 21 | 18 | 20 | 19 | 16 | 9 | 10 | 9 | 11 | 12 | 13 | 16 | 14 | 14 |
Swell 1 Height (m) Direction Period (s) | — | SW 18 | NNW 4 | W 16 | — | N 4 | ESE 3 | SW 7 | NNW 4 | NNW 4 | SW 7 | SW 6 | SW 6 | S 6 | SW 11 | NNW 5 | — | NNW 4 | NNW 4 | — | NNW 4 |
| kJ | — | 12 | 3 | 5 | — | 3 | 1 | 2 | 5 | 1 | 2 | 1 | 1 | 1 | 5 | 11 | — | 5 | 2 | — | 1 |
Swell 2 Height (m) Direction Period (s) | — | — | W 14 | W 13 | SW 7 | SW 6 | NW 4 | SW 14 | SW 7 | SW 7 | SW 12 | SW 13 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 4 | 3 | 2 | 2 | 1 | 8 | 2 | 2 | 6 | 6 | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | W 18 | W 14 | S 7 | S 6 | SW 16 | W 13 | SW 14 | W 8 | SW 12 | W 12 | — | W 13 | — | — | — | — | — | — | — | — | — |
| kJ | 6 | 4 | 1 | 1 | 10 | 3 | 8 | 1 | 6 | 3 | — | 3 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | ENE 3 | E 3 | — | E 3 | — | NNW 3 | ENE 3 | — | NNW 4 | N 4 | NNW 5 | NNW 4 | N 4 | — | NNW 3 | ENE 3 | — | NNW 4 | N 4 |
| kJ | — | — | 3 | 2 | — | 5 | — | 3 | 1 | — | 6 | 6 | 20 | 29 | 21 | — | 7 | 1 | — | 3 | 4 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 133 | 189 | 248 | 254 | 377 | 306 | 308 | 377 | 295 | 254 | 615 | 350 | 303 | 376 | 77 | 335 | 308 | 319 | 312 | 286 | 273 |
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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