
Surf Forecasts:
Porth Ceriad surf forecast from 1 Aug 2026:
- Best quality surf: Wednesday 5 Aug, 7PM (local time) - 2.5ft (0.8m), 7s period, SW swell with cross-offshore winds.
- Most powerful swell: Thursday 6 Aug, 4AM (local time) - 3ft (0.9m), 7s period, SW swell with 82 kJ wave energy.
- Next surfable swell (1★+): Wednesday 5 Aug, 7PM (local time) - 2.5ft (0.8m), 7s period with SW 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 (Aug 05) at 7PM. The primary swell is predicted to be 0.8m and 7s period with a secondary swell of 0.1m and 13s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Porth Ceriad in the next 16 days are 0.9m 7s and forecast to arrive on Thursday (Aug 06) at 4AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Thursday (Aug 06) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Wed 5th Aug) | 2.5ft (0.8m) 7s |
| Best Surf | 7PM (Wed 5th Aug) | 2.5ft (0.8m) 7s |
| Most Powerful | 4AM (Thu 6th Aug) | 3ft (0.9m) 7s |
Table - best surf conditions forecast for Porth Ceriad over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s on the cards for Porth Ceriad.
Right off the bat, I’ve got to be straight with you – this is a tough one. The entire 16-day window is a bit of a struggle. We’re looking at a long dry spell with no real surf on offer. The first recommendation doesn't come until the very end of the period, and even then, it’s a marginal call. You’ll be waiting a good while.
For the first few days, it’s flat. Saturday the 1st and Sunday the 2nd offer tiny dribbles of 0.3 ft to 1 ft, with short periods and poor conditions. Nothing to get excited about. The wind flips around a bit, but the swell just isn’t there. The combined energy is barely registering (13 on the Saturday morning, down to 3 on the Sunday afternoon). It’s a total write-off.
We go through the whole first week with the same story. Swell heights stay below 3 ft, mostly in the 1 ft range, and the energy values are all in the low double digits or less. Monday the 3rd gives us a 1 ft SW swell with a 9-second period, but the cross-onshore winds keep it choppy. Tuesday the 4th morning actually looks glassy with a 1 ft SW swell, but the combined energy is still only 21. It’s clean, but there’s just no power. It’s a frustrating pattern.
The second week doesn’t offer much relief. Wednesday the 12th morning sees a slight bump to 4 ft from the WSW, but it’s onshore wind and the period is a short 5 seconds. That’s 80 energy, but it’s messy. Then the wind really starts to howl from the 13th onwards. Thursday the 13th brings strong breeze at 25 mph, and by Sunday the 16th we’re looking at near gale force winds at 31 mph. The swell is completely blown out and tiny.
The only real standout, if you can call it that, is a very brief window on Saturday the 8th of August. The morning is glassy, with a slight air, and a 1 ft SW swell. The afternoon stays clean with a cross-offshore breeze. The combined energy is pretty weak (19 and 18), but it’s the cleanest surf in the whole 16-day run. It’s a beginner-friendly 1 ft, so it’s not going to give you much of a push, but for a longboard or a foamie, it could be a fun little session.
Given the lack of size and punch, Porth Ceriad is a beginner-friendly spot. With the swell being so small, even the bigger days (like the 4 ft on the 12th) are still manageable for a learner, but the wind ruins it. The water is about average for the time of year, nothing unusual there.
Honestly, for the vast majority of this forecast, the setup looks more interesting for kite surfing than paddle surfing. The wind is strong and consistent, but the waves are just too small and weak to bother with. Hang in there, forecasts can change, but as it stands, this is a blank run.
Rusty
Short Range ForecastMostly dry. Warm (max 20°C on Mon morning, min 14°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Mon night. Very mild (max 19°C on Tue afternoon, min 13°C on Wed night). Winds increasing (calm on Tue morning, fresh winds from the NW by Wed night). | ||||||||||||||||||||
Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | |||||||||||||||
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 5 | SW 5 | WSW 4 | WSW 4 | SW 8 | WSW 9 | SW 9 | WSW 8 | WSW 8 | SW 8 | SW 7 | SW 6 | SW 6 | SW 7 | SW 7 | SW 7 | SW 6 | SW 6 | SW 6 | W 12 | SW 8 |
Wave Graph | |||||||||||||||||||||
6 | 3 | 3 | 3 | 3 | 8 | 20 | 28 | 26 | 21 | 14 | 56 | 70 | 54 | 43 | 44 | 20 | 9 | 6 | 3 | 2 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | on | cross-on | cross-on | off | cross-off | cross-on | cross-off | cross-off | glassy | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | on | on | cross-on | glassy |
High Tide | 10:40AM3.99m | 10:57PM4.42m | 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 | ||||||||
Low Tide | 5:38AM0.39m | 5:41PM0.53m | 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 | |||||||
5:35 | — | — | 5:37 | — | — | 5:37 | — | — | 5:39 | — | — | 5:41 | — | — | 5:43 | — | — | 5:45 | — | — | |
— | — | 9:12 | — | — | 9:09 | — | — | 9:07 | — | — | 9:06 | — | — | 9:04 | — | — | 9:02 | — | — | 9:00 | |
mm | — | — | — | — | — | — | — | — | 1 | — | — | 1 | 2 | 2 | 1 | — | — | — | — | — | — |
Temp °C | 14 | 15 | 15 | 17 | 19 | 18 | 20 | 20 | 18 | 18 | 19 | 19 | 18 | 18 | 16 | 14 | 15 | 15 | 16 | 16 | 16 |
Feels °C | 12 | 14 | 14 | 17 | 16 | 15 | 20 | 18 | 16 | 16 | 18 | 17 | 17 | 17 | 13 | 9 | 13 | 13 | 15 | 14 | 15 |
Swell 1 Height (m) Direction Period (s) | SW 5 | SW 5 | WSW 4 | WSW 4 | SW 8 | NNW 4 | SW 9 | WSW 8 | WSW 8 | SW 8 | SW 7 | WSW 6 | — | W 13 | SW 7 | SW 7 | SW 6 | SW 6 | SW 6 | SW 6 | N 4 |
6 | 3 | 3 | 1 | 3 | 2 | 20 | 28 | 26 | 21 | 14 | 22 | — | 3 | 43 | 44 | 20 | 9 | 5 | 1 | 7 | |
Swell 2 Height (m) Direction Period (s) | NW 4 | NW 4 | SW 9 | SW 8 | — | WSW 9 | NNW 4 | — | — | — | — | — | — | W 13 | W 13 | W 13 | W 12 | SW 12 | NNW 4 | — | SW 5 |
5 | 2 | 3 | 3 | — | 8 | 2 | — | — | — | — | — | — | 3 | 3 | 3 | 3 | 6 | 2 | — | 1 | |
Swell 3 Height (m) Direction Period (s) | W 10 | W 9 | — | — | — | — | NNW 4 | — | — | — | — | — | — | — | — | — | — | — | SW 12 | W 12 | SW 8 |
2 | 2 | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | 6 | 3 | 2 | |
Wind waves Height (m) Direction Period (s) | WNW 4 | WSW 5 | — | — | — | NE 3 | SE 3 | NW 4 | — | — | — | SW 6 | SW 6 | SW 7 | SSW 4 | NW 4 | NNW 4 | NNW 4 | — | N 4 | — |
1 | 2 | — | — | — | 2 | 2 | 1 | — | — | — | 56 | 70 | 54 | 12 | 16 | 7 | 3 | — | 1 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 305 | 317 | 298 | 298 | 301 | 113 | 114 | 138 | 113 | 200 | 343 | 308 | 3 | 3 | 126 | 138 | 298 | 306 | 317 | 350 | 133 |
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.











