Surf Forecasts:
Porth Ceriad surf forecast from 26 Jul 2026:
- Best quality surf: Thursday 30 Jul, 10PM (local time) - 4.5ft (1.3m), 6s period, WSW swell with cross-offshore winds.
- Most powerful swell: Thursday 30 Jul, 7PM (local time) - 4.5ft (1.4m), 6s period, SW swell with 120 kJ wave energy.
- Next surfable swell (1★+): Thursday 30 Jul, 10PM (local time) - 4.5ft (1.3m), 6s 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 Thursday (Jul 30) at 10PM. The primary swell is predicted to be 1.3m and 6s period. 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 1.4m 6s and forecast to arrive on Thursday (Jul 30) at 7PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 6s period and expected on Sunday (Jul 26) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Thu 30th Jul) | 4.5ft (1.3m) 6s |
| Best Surf | 10PM (Thu 30th Jul) | 4.5ft (1.3m) 6s |
| Most Powerful | 7PM (Thu 30th Jul) | 4.5ft (1.4m) 6s |
Table - best surf conditions forecast for Porth Ceriad over the next 16 days.
The Lowdown
Alright folks, Rusty here. Look, I’ve gotta be straight with you – this is a tough one. We’ve got a full 16-day window ahead, but it’s a real battle to find anything worth paddling out for. The first few days are a write-off, and it stays that way for a long stretch.
Porth Ceriad is the only spot on the cards. We’re looking at a long, dry spell. From now, right through the end of July and into the first week of August, the forecast is loaded with onshore and cross-shore winds, weak swell, and just generally poor surf conditions. There’s a gap of almost two weeks where you’d be better off waxing your board at home. The water temperature is a real outlier though, coming in at 65°F with a massive anomaly of 5°F – that’s much warmer than normal for this time of year, so at least you won’t need a thick wetsuit.
The first glimmer of hope doesn’t come until Sunday afternoon, the 2nd of August. We get a tiny thigh-high swell at 2ft from the SW, but the real story is the wind. It’s glassy. Absolute flat calm. With a period of 9 seconds, this is a weak, clean little session. The combined energy is only 81, so it’s weak, but for a novelty surf after all this junk, it’s the best we’ve got. Don’t expect much, just a few fun little waves for the log.
Now, the real standout – and I mean the only real standout – is a late call. Thursday afternoon, the 6th of August. The swell jumps to 6ft from the SSW, with a short period of 6 seconds, so it’s a bit of a windswell bump, but the combined energy hits 208 (moderate). The wind is light cross-off from the NNW, keeping it clean. This is solid for a beach break, but at 6ft, it’s getting a bit punchy, so it’s not for the groms. It’s a one-off, so if you’re free, that’s the session to circle.
Beyond that, it’s grim. The 7th of August gets hammered by a strong onshore gale with 31 mph winds, making a mess of a 6ft swell. Then it dies again. There’s nothing else to get excited about in the second week.
So, to sum it up: glass it up on the 2nd of August for a laugh, or save your energy for the 6th of August for the only real bump of the whole forecast. It’s a long wait.
Rusty.
Short Range ForecastSome drizzle, heaviest during Mon morning. Very mild (max 19°C on Mon afternoon, min 14°C on Sun night). Winds decreasing (fresh winds from the WNW on Sun morning, light winds from the S by Tue night). | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Wed morning, min 13°C on Thu night). Winds increasing (calm on Wed morning, fresh winds from the SW by Fri afternoon). | ||||||||||||||||||||
Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | |||||||||||||||
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 5 | SW 6 | WNW 5 | WSW 4 | WSW 4 | SW 6 | SW 5 | SW 5 | SW 4 | WSW 4 | WSW 4 | WSW 5 | WSW 5 | SW 6 | WSW 6 | SW 6 | SW 6 | WSW 5 | SW 6 | SW 5 | SW 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 104 | 40 | 0 | 30 | 25 | 56 | 41 | 23 | 9 | 2 | 2 | 37 | 69 | 52 | 70 | 15 | 15 | 28 | 15 | 4 | 1 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross | cross-on | cross | cross-on | cross-off | cross | cross-on | cross-off | cross | on | glassy |
High Tide | 7:22PM3.37m | 7:44AM3.33m | 8:04PM3.61m | 8:23AM3.51m | 8:41PM3.85m | 8:59AM3.68m | 9:16PM4.07m | 9:32AM3.82m | 9:49PM4.25m | 10:06AM3.92m | 10:23PM4.38m | 10:40AM3.99m | 10:57PM4.42m | ||||||||
Low Tide | 2:08PM1.25m | 2:38AM1.09m | 2:51PM1.04m | 3:18AM0.86m | 3:28PM0.83m | 3:55AM0.66m | 4:02PM0.66m | 4:30AM0.51m | 4:35PM0.55m | 5:04AM0.42m | 5:09PM0.50m | 5:38AM0.39m | 5:41PM0.53m | ||||||||
 | |  |  |  | |  | | | | | | | |  | | | | | |  | |
 | 5:26 | — | — | 5:26 | — | — | 5:28 | — | — | 5:30 | — | — | 5:31 | — | — | 5:33 | — | — | 5:35 | — | — |
 | — | — | 9:21 | — | — | 9:20 | — | — | 9:17 | — | — | 9:16 | — | — | 9:15 | — | — | 9:13 | — | — | 9:12 |
mm | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 17 | 17 | 16 | 19 | 19 | 19 | 19 | 18 | 21 | 20 | 18 | 16 | 17 | 18 | 14 | 16 | 18 | 14 | 15 | 15 |
Feels °C | 9 | 12 | 13 | 12 | 17 | 18 | 17 | 17 | 18 | 21 | 19 | 16 | 11 | 12 | 15 | 9 | 10 | 13 | 11 | 14 | 13 |
Swell 1 Height (m) Direction Period (s) | — | SW 6 | — | NW 5 | NNW 4 | — | — | WSW 5 | SW 4 | WSW 4 | WSW 4 | — | — | NW 4 | WSW 6 | SW 6 | NW 4 | WSW 5 | SW 6 | SW 5 | SW 4 |
| kJ | — | 40 | — | 12 | 2 | — | — | 8 | 9 | 2 | 2 | — | — | 2 | 70 | 15 | 3 | 17 | 15 | 4 | 1 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NW 4 | — | — | NW 4 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 9 | — | — | 2 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 5 | NW 6 | WNW 5 | WSW 4 | WSW 4 | SW 6 | SW 5 | SW 5 | — | — | — | WSW 5 | WSW 5 | SW 6 | — | — | SW 6 | WSW 5 | — | NNW 4 | — |
| kJ | 104 | 79 | 45 | 30 | 25 | 56 | 41 | 23 | — | — | — | 37 | 69 | 52 | — | — | 15 | 28 | — | 1 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 619 | 891 | 292 | 303 | 298 | 246 | 255 | 268 | 213 | 254 | 341 | 307 | 320 | 494 | 139 | 317 | 289 | 305 | 305 | 354 | 189 |
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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