Surf Forecasts:
Porth Ceriad surf forecast from 6 Jul 2026:
- Best quality surf: Tuesday 7 Jul, 4AM (local time) - 2.5ft (0.8m), 5s period, WSW swell with offshore winds.
- Most powerful swell: Monday 6 Jul, 10PM (local time) - 3.5ft (1.0m), 5s period, SW swell with 51 kJ wave energy.
- Next surfable swell (1★+): Tuesday 7 Jul, 4AM (local time) - 2.5ft (0.8m), 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 Tuesday (Jul 07) at 4AM. The primary swell is predicted to be 0.8m and 5s period with a secondary swell of 0.7m and 5s. 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 1.0m 5s and forecast to arrive on Monday (Jul 06) at 10PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 5s period and expected on Friday (Jul 10) at 10PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Tue 7th Jul) | 2.5ft (0.8m) 5s |
| Best Surf | 4AM (Tue 7th Jul) | 2.5ft (0.8m) 5s |
| Most Powerful | 10PM (Mon 6th Jul) | 3.5ft (1.0m) 5s |
Table - best surf conditions forecast for Porth Ceriad over the next 16 days.
Updates in hr min s Forecast update imminent
Alright folks, Rusty here. Let’s have a look at what’s cookin’ for Porth Ceriad over the next couple of weeks, and honestly, I’ve got to be straight with you – it’s gonna be a tough stretch.
We’re looking at a real dry spell to kick things off. The water temp is sitting at 63°F, which is a solid 5°F warmer than normal for this time of year. That’s pretty unusual, feels like you’re in for a warm bath rather than a Welsh summer dip. But that’s where the good news ends, because the surf just isn’t there.
For the first week, from Monday the 6th of July all the way through to Saturday the 12th, it’s a write-off. We’ve got tiny, weak swell – barely a ripple. The combined energy readings are in the low single digits (13, 25, 12, 6 – you get the picture), which is weak stuff. Winds are all over the place, mostly cross-on or light offshore, but with next to no wave height, it doesn’t matter. There’s a bit of glassy conditions on Wednesday the 8th, but with zero swell energy (0), the ocean’s just a lake. No surf to be had at all.
We then roll into the second week. From Sunday the 13th of July through to Tuesday the 21st, the story doesn't change much. We finally see a tiny bit of swell, but we’re talking 0.3ft to 2ft at best. The combined energy is still very weak – the highest we see is 24 on Friday the 17th morning. That same day, we get a shot of glassy conditions in the morning and clean offshore wind in the afternoon, but the swell is just too small to generate a proper wave. The swell direction is mostly from the west or southwest, which is fine, but with these heights and short periods (mostly 4 to 6 seconds, sometimes a bit longer), it just won’t break with any push.
Late in the period, the wind picks up strong. On Saturday the 18th, we’ve got a strong offshore breeze at 25 mph – that would groom the wave face perfectly, but with only 1ft of swell, it’s more likely to just blow the surface off. For a beginner-friendly spot like Porth Ceriad, that’s no good. You’d need more size. A couple of these days, the offshore and stronger winds might turn the ocean into something that looks better for a kite than a surfboard.
In short, there are no standouts here, folks. This is a lean patch for Porth Ceriad. The forecasts can always change, but as it stands, you’re better off cleaning your wetsuit and waiting. Sometimes the ocean just takes a holiday.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Wed afternoon, min 15°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Sat night. Warm (max 24°C on Sat afternoon, min 13°C on Fri night). Winds increasing (calm on Thu morning, fresh winds from the N by Fri night). | ||||||||||||||||||||
Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | |||||||||||||||
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 5 | SW 5 | SW 5 | NW 4 | W 12 | — | — | — | W 6 | NW 3 | NNE 3 | W 10 | W 11 | ESE 3 | ESE 3 | ESE 3 | ESE 4 | N 6 | N 4 | E 3 |
Wave Graph  | |||||||||||||||||||||
 kJ | 13 | 24 | 38 | 7 | 3 | 3 | 0 | 0 | 0 | 1 | 0 | 0 | 2 | 2 | 3 | 2 | 2 | 14 | 0 | 0 | 3 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | on | on | cross-on | glassy | glassy | cross-on | glassy | cross-off | cross-off | glassy | cross-off | off | off | off | cross-off | cross | off | cross |
High Tide | 1:02PM3.51m | 1:23AM3.85m | 1:52PM3.41m | 2:16AM3.70m | 2:52PM3.32m | 3:19AM3.57m | 4:02PM3.32m | 4:32AM3.54m | 5:13PM3.44m | 5:43AM3.64m | 6:18PM3.68m | 6:47AM3.84m | 7:16PM3.99m | ||||||||
Low Tide | 7:56PM1.09m | 8:39AM0.94m | 8:39PM1.19m | 9:26AM1.02m | 9:32PM1.27m | 10:24AM1.08m | 10:44PM1.28m | 11:38AM1.08m | 00:14AM1.18m | 1:00PM0.98m | 1:36AM0.93m | 2:09PM0.78m | 2:41AM0.60m | ||||||||
 |  |  | | |  | | | | | | | | |  | | | | | | | |
 | 5:01 | — | — | 5:01 | — | — | 5:03 | — | — | 5:03 | — | — | 5:05 | — | — | 5:05 | — | — | 5:07 | — | — |
 | — | — | 9:43 | — | — | 9:42 | — | — | 9:42 | — | — | 9:40 | — | — | 9:39 | — | — | 9:38 | — | — | 9:37 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | 5 | — | — | — |
Temp °C | 16 | 16 | 18 | 16 | 17 | 17 | 19 | 20 | 20 | 20 | 21 | 22 | 23 | 23 | 19 | 20 | 24 | 22 | 22 | 27 | 25 |
Feels °C | 15 | 14 | 17 | 16 | 16 | 16 | 20 | 21 | 21 | 20 | 20 | 21 | 22 | 21 | 16 | 17 | 21 | 20 | 23 | 24 | 22 |
Swell 1 Height (m) Direction Period (s) | — | NW 4 | SW 5 | SW 5 | NW 4 | WSW 4 | — | — | — | — | — | — | — | W 11 | NNW 6 | NNW 6 | NW 5 | — | — | N 4 | NNW 5 |
| kJ | — | 1 | 38 | 5 | 3 | 1 | — | — | — | — | — | — | — | 2 | 40 | 23 | 7 | — | — | 1 | 3 |
Swell 2 Height (m) Direction Period (s) | — | — | — | NW 4 | SW 4 | — | — | — | — | — | — | — | — | W 9 | W 11 | W 8 | — | — | — | N 5 | — |
| kJ | — | — | — | 7 | 3 | — | — | — | — | — | — | — | — | 2 | 2 | 1 | — | — | — | 1 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | W 12 | — | — | — | W 6 | — | — | W 10 | — | — | W 7 | W 8 | — | N 6 | — | — |
| kJ | — | — | — | — | — | 3 | — | — | — | 1 | — | — | 2 | — | — | 1 | 1 | — | 1 | — | — |
Wind waves Height (m) Direction Period (s) | SW 4 | SW 5 | — | — | — | — | — | — | — | — | NW 3 | NNE 3 | — | NNW 4 | ESE 3 | ESE 3 | ESE 3 | ESE 4 | — | — | E 3 |
| kJ | 13 | 24 | — | — | — | — | — | — | — | — | 1 | 2 | — | 6 | 3 | 2 | 2 | 14 | — | — | 3 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 296 | 296 | 296 | 290 | 317 | 213 | 199 | 303 | 199 | 248 | 303 | 199 | 113 | 133 | 186 | 213 | 248 | 254 | 336 | 189 | 254 |
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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